Publications of Willi Graupner

Revised in June 2003
[number] refers to funded projects - legend see below (under construction)
Statistics on journals - also see below (under construction)

(1) Optical Properties and Conjugation-Length-Effects of Polyacetylene and Copolymers,
G. Leising, C. Heller, K. Pressl, W. Graupner, W. Fischer, F. Stelzer, Ch. Godon, S. Lefrant,
Springer Series in Solid State Sciences107, 242-245 (1992).

(2) Photoinduced Absorption in Polyacetylene-Polynorbornene and Polyacetylene-Polystyrene Block Copolymers,
W. Graupner, G. Leising, W. Fischer, F. Stelzer, D. Reibel, C. Mathis,
Synthetic Metals 55, 43-49 (1993).

(3) Conductive Polymers: Evaluation of Industrial Applications,
S. Roth, W. Graupner,
Synthetic Metals 57, 3623-3631 (1993).

(4) Photoinduced Absorption in Polyacetylene-Polynorbornene Block-Copolymers,
W. Graupner, G. Leising, W. Fischer, F. Stelzer,
Synthetic Metals 58, 77-94 (1993).

(5) Industrial Applications of Conductive Polymers,
W. Graupner, S. Roth,
Materials Science Forum 122, (1993) 229-236.

(6) Electroluminescence with Conjugated Polymers and Oligomers,
W. Graupner, G. Grem, F. Meghdadi, Ch.
Paar, G. Leising, U. Scherf, K. Müllen, W. Fischer, F. Stelzer,
Molecular Crystals Liquid Crystals 256, 549-554 (1994).

(7) Excited States in Polymers of Different Dimerization,
W. Graupner, M. Mauri, J. Stampfl, O. Unterweger, G. Leising, U. Scherf, K. Müllen,
Molecular Crystals Liquid Crystals 256, 431-438 (1994).

(8) An Investigation of the Influence of the Film Thickness on the Electronic and Vibronic Properties of Trans-Polyacetylene Thin Films,
W. Graupner, M. Mauri, G. Leditzky, G. Leising, W. Fischer, F. Stelzer,
Thin Solid Films 259, 118-124 (1995).

(9) Photoexcited and Doping Induced Electronic States in a Poly (Para-phenylene)-Type Ladder Polymer,
W. Graupner, M. Mauri, J. Stampfl, G. Leising, U. Scherf, K. Müllen,
Solid State Communications 91, 7-12 (1994).

(10) Excited States in PPP-Type Ladderpolymers Probed by Photoinduced Absorption,
W. Graupner, S. Eder, M. Mauri, G. Leising, U. Scherf,
Synthetic Metals 69, 419-422 (1995).

(11) Film-Thickness Dependent Optical Properties of Durham trans-Polyacetylene,
W. Graupner, M. Mauri, Kreimaier, G. Leising, W. Fischer, F. Stelzer,
Synthetic Metals 69, 53-54 (1995).

(12) Observation of a Defect Dependent Pinning Mode in Durham Polyacetylene,
M. Mauri, W. Graupner, G. Leising, W. Fischer, F. Stelzer,
Synthetic Metals 69, 73-74 (1995).

(13) Photoluminescence and UV/Vis Absorption Study of Poly(Para-Phenylene)-Type Ladder-Polymers,
J. Stampfl, W. Graupner, G. Leising, U. Scherf,
Journal of Luminescence 63, 117-123 (1995).

(14) Photoexcitations in Conjugated Polymers
W. Graupner, G. Leising,
Materials Science Forum 191, 177-186 (1995).

(15) Survey of Industrial Applications of Conducting Polymers,
S. Roth, W. Graupner, P. McNeillis,
Acta Physica Polonica 87, 699-711 (1995).

(16) Femtosecond Relaxation of Photoexcitations in a Solution of a Poly(Para-Phenylene)-Type Ladderpolymer,
W. Graupner, G. Leising, G. Lanzani, M. Nisoli, S. de Silvestri, U. Scherf,
Chemical Physics Letters246, 95-100 (1995).

(17) Red-Orange Electroluminescence with New Soluble and Air Stable Poly(Naphthalene-Vinylene)s,
S. Tasch, W. Graupner, G. Leising, L. Pu, M. W. Wagner, R. H. Grubbs,
Advanced Materials 7, 903-906 (1995).

(18) Femtosecond Relaxation of Photoexcitations in a Poly(Para-Phenylene)-Type Ladderpolymer,
W. Graupner, G. Leising, G. Lanzani, M. Nisoli, S. De Silvestri, U. Scherf,
Physical Review Letters 76, 847-850 (1996).

(19) Femtosecond Optical Dynamics in a Poly(Para-Phenylene)-Type Ladderpolymer,
W. Graupner, K. Petritsch, G. Leising, G. Lanzani, M. Nisoli, S. De Silvestri, U. Scherf,
Materials Research Society Symposium Proceedings 413, 615-620 (1996).

(20) Dynamics of Long-Lived Polarons in in Poly(Para-Phenylene)-Type Ladder Polymers,
W. Graupner, J. Partee, J. Shinar, G. Leising, U. Scherf,
Physical Review Letters 77, 2033-2036 (1996)

(21) Shallow and Deep Traps in Conjugated Polymers of High Intrachain Order,
W. Graupner, G. Leditzky, G. Leising, U. Scherf,
Physical Review B 54, 7610-7613 (1996).

(22) Femtosecond Pump and Probe Experiments on Films and Solutions of Conjugated Poly(Para-Phenylene)-Type Ladderpolymers,
W. Graupner, G. Leising, G. Lanzani, M. Nisoli, S. De Silvestri, U. Scherf,
pp. 439-443 in Ultrafast Processes in Spectroscopy, ed. by O. Svelto, S. De Silvestri, G. Denardo, Plenum Press, New York 1996.

(23) Fluorescent Properties of Conjugated Ladderpolymers,
W. Graupner, S. Tasch, J. Stampfl, G. Leising, G. Lanzani, M. Nisoli, S. De Silvestri, U. Scherf,
Journal of Fluorescence7, 195s-198s (1997).

(24) Electrochemical and X-Ray Diffraction Studies on Polypyrrole Films,
S. Pruneanu, W. Graupner, L. Oniciu, M. Brie, R. Turcu,
Materials Chemistry and Physics 46, 55-60 (1996).

(25) Dynamics of Long-Lived Polarons in Poly (Para-Phenylene)-Type Ladder Polymers,
J. Partee, W. Graupner, J. Shinar, G. Leising, U. Scherf,
Synthetic Metals 84, 647-648, (1997).

(26) Origin and Stabilization of Photoexcitations in Conjugated Polymers,
W. Graupner, S. Eder, K. Petritsch, G. Leising, U. Scherf,
Synthetic Metals 84, 507-510, (1997).

(27) Photoinduced Absorption in a Poly (Para-Phenylene)-Type Ladder Polymer,
K. Petritsch, W. Graupner, G. Leising, U. Scherf,
Synthetic Metals 84, 625-626, (1997).

(28) Light Emission from Conjugated Materials Generated by Charge Carrier Injection and Photoexcitation,
G. Leising, F. Meghdadi, S. Tasch, C. Brandstätter, W. Graupner, G. Kranzelbinder,
Synthetic Metals 85, 1209-1212, (1997).

(29) Vibrational Analysis of Derivatives of Poly(Para-Phenylene),
C. Godon, J. P. Buisson, S. Lefrant, J. Sturm, M. Klemenc, W. Graupner, G. Leising, M. Mayer, A. D. Schlüter, U. Scherf,
Synthetic Metals 84, 673-674, (1997).

(30) Multicolor Electroluminescence and Stimulated Emission of Conjugated Polymers and Oligomers,
G. Leising, O. Ekström, W. Graupner, F. Meghdadi, M. Moser, G. Kranzelbinder, T. Jost, S. Tasch, B. Winkler,
L. Athouel, G. Froyer, U. Scherf, K. Müllen, G. Lanzani, M. Nisoli, S. De Silvestri,
SPIE Proceedings 2852, 189-200 (1996).

(31) Optoelectronic Properties of Polyphenyls,
W. Graupner, T. Jost, K. Petritsch, S. Tasch, G. Leising, M. Graupner, A. Hermetter,
Society of Plastics Engineers, Technical Papers XLIII,1339-1343 (1997).

(32) Fundamentals of Electroluminescence in Para-Phenylene-Type Conjugated Polymers and Oligomers,
G. Leising, S. Tasch, W. Graupner,
pp. 847 - 880 in Handbook of Conducting Polymers, 2. edition,
edited by T. Skotheim, R. Elsenbaumer, J. Reynolds, Marcel Dekker, New York, 1997.

(33) Structural Investigations on Polypyrrole and Poly(Vinyl Chloride)-Polypyrrole Composite Films,
S. Pruneanu, R. Resel, G. Leising, M. Brie, W. Graupner, L. Oniciu,
Materials Chemistry and Physics 48, 240-245 (1997).

(34) The Application of Polyphenylene Type Polymers and Oligomers in Electroluminescent Color Displays,
S. Tasch, C. Brandstätter, W. Graupner, S. Hampel, C. Hochfilzer, J. W. E. List, F. Meghdadi, G. Leising,
P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen,
Materials Research Society Symposium Proceedings 471, 325-330 (1997).

(35) Photoexcitations in Para-Hexaphenyl,
W. Graupner, F. Meghdadi, G. Leising, G. Lanzani, M. Nisoli, S. De Silvestri, W. Fischer, F. Stelzer,
Physical Review B 56, 10128-10132 (1997).

(36) Emission properties of Para-Hexaphenyl,
A. Piaggi, G. Lanzani, G. Bongiovanni, A. Mura, W. Graupner, F. Meghdadi, G. Leising,
Physical Review B 56, 10133-10137 (1997).

(37) Blue Green Stimulated Emission from a Conjugated Polymer Waveguide Structure,
C. Zenz, W. Graupner, S. Tasch, G. Leising, U. Scherf,
Applied Physics Letters 71, 2566-2568 (1997).

(38) Cooperative Effects in Blue Light Emission of Poly(Para-Phenylene)-Type Ladderpolymer,
G. Kranzelbinder, M. Nisoli, S. Stagira, S. De Silvestri, G. Lanzani, U. Scherf, K. Müllen, W. Graupner, G. Leising,
Applied Physics Letters 71, 2725-2727 (1997).

(39) Efficient White Light-Emitting Diodes Realized With New Processible Blends of Conjugated Polymers,
S. Tasch, J. W. E. List, O. Ekström, W. Graupner, G. Leising, P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen
Applied Physics Letters 71, 2883-2885 (1997).

(40) Cooperative Radiation at High Excitation Densities and Stimulated Emission in a Poly(Para-Phenylene)-Type Ladderpolymer,
G. Kranzelbinder, W. Graupner, G. Leising, U. Scherf,
SPIE Proceedings 3145, 48-56 (1997).

(41) Long Lived Polarons and Triplet Excitons in Ladder-Type(Para-Phenylenes) and Poly(Para-Phenylene Ethynylenes),
J. Partee, J. Shinar, W. Graupner, G. Leising, S. W. Jessen, A. J. Epstein, Y. Ding, T. J. Barton,
SPIE Proceedings 3145, 118-131 (1997).

(42) Photoexcitations of Conjugated Polymer - Fullerene Composites in Conventional Polymers,
C. J. Brabec, V. Dyakonov, N. S. Sariciftci, W. Graupner, G. Leising,
SPIE Proceedings 3145, 516-525 (1997).

(43) Efficient Full Color Electroluminescence and Stimulated Emission With Polyphenylenes,
G. Leising, S. Tasch, C. Brandstätter, W. Graupner, S. Hampel, E. J. W. List, F. Meghdadi,
C. Zenz, P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen,
Synthetic Metals 91, 41-47 (1997).

(44) Optical Properties of Para-Hexaphenyl Polycrystalline Films,
A. Piaggi, G. Lanzani, G. Bongiovanni, M. A. Loi, A. Mura, W. Graupner, F. Meghdadi, G. Leising,
Optical Materials 9, 489-493 (1998).

(45) Dynamics of Photoexcitations in Highly Fluorescent Organic Guest Host Systems,
E. List, W. Graupner, M. Wohlgenannt, G. Leising, J. Partee, J. Shinar, P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen,
Optical Materials 9, 494-497 (1998).

(46) Efficient Charge Carrier Transfer from m-LPPP to C60 Derivatives,
C. Waldauf, W. Graupner, S. Tasch, G. Leising, U. Scherf, K. Müllen,
Optical Materials 9, 449-453 (1998).

(47) The Optoelectronic Properties of Fullerene - Conjugated Polymer - Conventional Polymer Guest Host Systems,
C. J. Brabec, N. S. Sariciftci, W. Graupner, G. Leising, F. Wudl, A. J. Heeger,
pp. 128-131 in Molecular Nanostructures ed. by H. Kuzmany, J. Fink, M. Mehring, S. Roth, World Scientific, Singapore 1997.

(48) Photophysics of Energy Transfer in Highly Fluorescent Polymers,
M. Wohlgenannt, W. Graupner, F. P. Wenzl, S. Tasch, E. J. W. List, G. Leising, M. Graupner, A. Hermetter, U. Rohr, P. Schlichting, Y. Geerts, U. Scherf, K. Müllen,
Chemical Physics 227, 99-109 (1998).

(49) Magnetic Field Effect in Highly Pure, Highly Fluorescent Conjugated Polymers
W. Graupner, M. Sacher, M. Graupner, C. Zenz, G. Grampp, A. Hermetter, G. Leising,
Materials Research Society Symposium Proceedings 488, 789-794 (1998).

(50) Electronic Properties of Poly( Para-Phenylenes) Under High Pressure,
W. Graupner, S. Guha, S. Yang, M. Chandrasekhar, H. R. Chandrasekhar,  G. Leising, U. Scherf, K. Müllen,
Materials Research Society Symposium Proceedings488, 873-878 (1998).

(51)  Structural Properties of Hexaphenyl Powder Under High Pressure,
S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H. R. Chandrasekhar, G. Leising,
Materials Research Society Symposium Proceedings488, 867-872 (1998).

(52) Dynamics of Polarons in Guest-Host-System Polymer Light Emitting Devices,
E. J. W. List, J. Partee, W. Graupner, J. Shinar, G. Leising,
Materials Research Society Symposium Proceedings 488, 99-104 (1998).

(53) Pressure Dependence of Photoluminescence of Oligothiophenes,
L. Rossi, W. Graupner, R. Resel, F. Meghdadi, G. Leising, F. Sannicolo, T. Benincori, G. Lanzani, R. Tubino,
Materials Research Society Symposium Proceedings 488, 897-902 (1998).

(54) Femtosecond Pump and Probe Spectroscopy on Poly( Para-Phenylenes),
W. Graupner, G. Cerullo, G. Kranzelbinder, G. Lanzani,  S. Stagira,  M. Nisoli, S. De Silvestri, G. Leising,
Materials Research Society Symposium Proceedings 488, 783-788 (1998).

(55) White Light Emitting Electroluminescence Devices with Organic Oligomers,
F. Meghdadi, S. Tasch, W. Graupner, S. E. Doettinger, M. Hanack,  M. Graupner, A. Hermetter, G. Leising,
Materials Research Society Symposium Proceedings 488, 27-32 (1998).

(56) Internal Field Distribution in Organic Light Emitting Devices  With Double Layer Structure,
C. Hochfilzer, T. Jost, A. Niko, W. Graupner, G. Leising, C. W. Tang, E. Forsythe, Y. Gao,
Materials Research Society Symposium Proceedings488, 121-126 (1998).

(57) The Dielectric Response of 8-Hydroxyquinoline Aluminum Used in Multilayer Organic Devices,
A. Niko, C. Hochfilzer, T. Jost, W. Graupner, G. Leising,
Materials Research Society Symposium Proceedings488, 713-718 (1998).

(58) Exciton Dynamics at High Excitation Density  in  Poly(Para-Phenylene)-Type Ladder Polymer,
G. Cerullo, S. Stagira, M. Nisoli, S. De Silvestri, G. Lanzani,  G. Kranzelbinder, W. Graupner, G. Leising,
Physical Review B 57, 12806-12811 (1998).

(59) Photoexcitations of Conjugated Polymer/Fullerene Composites Embedded in Conventional Polymers,
C. J. Brabec, V. Dyakonov, N. S. Sariciftci, W. Graupner, G. Leising, J. C. Hummelen,
Journal of Chemical Physics 109, 1185-1195 (1998).

(60) Ultrafast Energy-Transfer Dynamics in a  Blend of Electroluminescent Conjugated Polymers,
G. Cerullo, M. Nisoli, S. Stagira, S. De Silvestri, G. Lanzani, W. Graupner, E. J. W. List, G. Leising,
Chemical Physics Letters  288, 561-566 (1998).

(61) The Role of Amplified Spontaneous Emission in the Ultrafast Relaxation Dynamics of Polymer Films,
S. Stagira, M. Nisoli, G. Cerullo, M. Zavelani-Rossi, S. De Silvestri, G. Lanzani, W. Graupner, G. Leising,
Chemical Physics Letters  289, 205-210 (1998).

(62) Optimizing Hexaphenyl Thin Film Quality For Optoelectronic Applications By Heat Treatment,
R. Resel, W. Graupner, C. Hochfilzer, N. Koch, F. Meghdadi, S. Tasch, M. Wohlgenannt, G. Leising, K. Reichmann,
Applied Crystallography ed. by H. Morawiec, D. Stroz, World Scientific, Singapore 1998.

(63) Efficient Fullcolor Light Emitting Devices With Polyphenylenes,
G. Leising, F. Meghdadi, S. Tasch, C. Brandstätter, W. Graupner, S. Hampel, E. J. W. List,F. Stelzer, B. Winkler, C. Zenz, P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen,
Science and Technology of Polymers and Advanced Materials: Emerging Technologies and Business Opportunities
by Paras N. Prasad (Editor), International Conference on Frontiers of Polymers, Plenum Pub. Corp. 1998.

(64) Applications of Conjugated Polymers,
W. Graupner, S. Roth, P. McNeillis,
Volume on the Golden Jubilee Celebrations of the Central Electrochemical Research Institute, Karaikudi, India.

(65) Field-Assisted Femtosecond Pump Probe Measurements on Conjugated Systems,
C. Zenz, W. Graupner, G. Cerullo, G. Lanzani, M. Nisoli, E. J. W. List, F. Meghdadi, G. Leising, S. De Silvestri,
Optical Materials 12, 273-277 (1999).

(66) Optically Detected Magnetic Resonance Studies of  Nanostructured PPV-Composites.
E. J. W. List, P. Markart, W. Graupner, G. Leising, J. Partee, J. Shinar, R. Smith, D. Gin,
Optical Materials 12, 369-372 (1999).

(67) Singlet Fission in Luminescent and Nonluminescent p-Conjugated Polymers,
M. Wohlgenannt, W. Graupner, R. Osterbacka, G. Leising, D. Comoretto, Z. Vardeny,
Synthetic Metals 101, 267-268 (1999).

(68) Ultrafast Excitation Energy Transfer in a Blend of Light-Emitting Conjugated Polymers,
G. Cerullo, W. Graupner, G. Lanzani, M. Nisoli, E. J. W. List, S. Stagira, S. De Silvestri, G. Leising,
Synthetic Metals 101, 306-307 (1999).

(69) Electric Field-Assisted Femtosecond Pump-Probe Spectroscopy in Organic Light Emitting Diodes,
W. Graupner, G. Lanzani, G. Cerullo, C. Zenz, E. J. W. List, G. Leising, S. De Silvestri,
Synthetic Metals 101, 277-280 (1999).

(70) Emission Properties of a Molecularly Doped Highly Fluorescent Polymer,
G. Dicker, A. Hohenau, W. Graupner, S. Tasch, M. Graupner, A. Hermetter, B. Schlicke, N. Schulte, A. D. Schlüter, U. Scherf, K. Müllen, G. Leising,
Synthetic Metals 102, 873-874 (1999).

(71) High Pressure Studies on the Planarity of  Para-Hexaphenyl,
S. Guha, W. Graupner, R. Resel, M. Chandrasekhar, H. R. Chandrasekhar, R. Glaser, G. Leising,
Synthetic Metals 101, 180-181 (1999). [6608]

(72) Photophysical Properties of Nanostructured PPV-Composites,
E. Zojer, P. Markart, E. J. W. List, W. Graupner, R. Smith, G. Leising, J. Shinar, D. Gin,
Synthetic Metals 102, 1270-1271 (1999).

(73) Blue Green Stimulated Emission of a High Gain Conjugated Polymer,
C. Zenz, G. Kranzelbinder, W. Graupner, S. Tasch, G. Leising,
Synthetic Metals 101, 222-225 (1999).

(74) Excitation Energy Transfer in Guest Host Systems Studied  By Magnetic Resonance Techniques,
E. J. W. List, J. Partee, W. Graupner, J. Shinar, G. Leising,
Synthetic Metals 102, 1077-1078 (1999).

(75) Ultrafast Photoexcitations in Para-Hexaphenyl,
C. Zenz, G. Cerullo, G. Lanzani, W. Graupner, F. Meghdadi, S. De Silvestri, G. Leising,
Synthetic Metals 101, 660-661 (1999).

(76) Highly Directional Stimulated Emission From a Polymer Waveguide
C. Zenz, W. Graupner, S. Tasch, G. Leising, K. Iskra, J. Flieser, and T. Neger,
Journal of Applied Physics 84, 5445-5450 (1998).

(77) Optical Properties of Poly(Para-Phenylenes) Under High Pressure,
S. Guha, W. Graupner, S. Yang, M. Chandrasekhar, H. R. Chandrasekhar, G. Leising,
Physica Status Solidi 211, 177-188 (1999). [6608]

(78) Efficient Full Color Electroluminescence and Stimulated Emission With Polyphenylenes,
Günther Leising, Emil J.W. List, Christian Zenz, Stefan Tasch, Christoph Brandstaetter, Wilhelm Graupner, Peter Markart, Farideh Meghdadi, Gerald Kranzelbinder, Arnold Niko, Roland Resel, Egbert Zojer, P. Schlichting, U. Rohr, Y. Geerts, U. Scherf, K. Müllen, Ryan Smith, Douglas Gin,
SPIE Proceedings 3476, 76-87 (1998).

(79) Photovoltaic Properties of Multilayer and Molecularly Doped Organic Devices,
G. Meinhardt, W. Graupner, G. Feistritzer, R. Schroeder, E.J.W. List, A. Pogantsch, G. Dicker,
B. Schlicke, A. D. Schlüter, G. Winter, M. Hanack, U. Scherf, K. Müllen, G. Leising,
SPIE Proceedings 3623, 46-57 (1999).

(80) Applications of Conjugated Polymers,
W. Graupner,
Course Manuscript at the Technische Akademie Esslingen, 7.
Symposium Elektrisch Leitende Kunststoffe, 2./3. 6. 1997.

(81) Direct Observation of Ultrafast Field-Induced Charge Generation in Ladder-Type Poly(Para-Phenylene),
W. Graupner, G. Cerullo, M. Nisoli, G. Lanzani, E. J. W. List, G. Leising, S. De Silvestri,
Physical Review Letters 81, 3259-3262 (1998).

(82) Photophysics of Methyl Substituted Poly(Para-Phenylene)-Type Ladderpolymers,
G. Lanzani, S. De Silvestri, G. Cerullo, S. Stagira, M. Nisoli, W. Graupner, G. Leising, U. Scherf, K. Müllen,
pp. 235-258, chapter 8, in Semiconducting Polymers – Chemistry, Physics and Engineering, edited  by G. Hadziioannou and P. van Hutten
John Wiley & Sons 2000.

(83) Solid State Aspects of Conjugated Semiconductors,
Wilhelm Graupner, Stefan Tasch, Günther Leising,
pp. 259-307, chapter 9, in Semiconducting Polymers – Chemistry, Physics and Engineering, edited  by G. Hadziioannou and P. van Hutten,
John Wiley & Sons 2000.

(84) Organic Solar Cells - Stabilization by Plastic Encapsulation,
R. Schroeder, G. Feistritzer, W. Graupner, G. Meinhardt, D. Berman, P. Preishuber-Pflügl, F. Stelzer, D. Faiman, G. Leising, Society of Plastics Engineers, Technical Papers - ANTEC 99 Volume III, 3844-3848 (1999).

(85) Ultrafast Photogeneration Mechanism of Triplet States in Para-Hexaphenyl,
C. Zenz, G. Cerullo, W. Graupner, G. Lanzani, F. Meghdadi, G. Leising, S. De Silvestri,
Physical Review B 99, 14336-14341 (1999).

(86) Action Spectroscopy of Neutral and Charged Excitations  in Films  of a Ladder-type Poly(Para-Phenylene),
M. Wohlgenannt, W. Graupner, G. Leising, Z. Vardeny,
Physical Review Letters 82,3344-3347 (1999). [12806]
See also Erratum, Physical Review Letters83, 1272 (1999).

(87) Planarity of para-Hexaphenyl,
S. Guha, W. Graupner, M. Chandrasekhar, H. R. Chandrasekhar, R. Resel, G. Leising, R. Glaser,
Physical Review Letters 82,3625-3628 (1999). [6608]

(88) Photogeneration and Recombination Processes of Neutral and Charged Excitations in Films of Ladder-Type Poly (Para-Phenylene),
M. Wohlgenannt, W. Graupner, G. Leising, Z. Vardeny,
Physical Review B 60, 5321-5330(1999). [12806]

(89) Electroluminescence with Poly(Para-Phenylene)s,
Stefan Tasch, Wilhelm Graupner and Günther Leising,
Chapter 8, pp. 205 in Organic Light Emitting Devices: A Survey, ed. by Joseph Shinar, Springer Verlag.

(90) Solid State Effects in the Electronic Structure of Ladder-Type Poly(Para-Phenylene)s and Oligo(Para-Phenylene)s,
E.J.W. List, J. Partee, J. Shinar, U. Scherf, K. Müllen, E. Zojer, W. Graupner, and G. Leising,
Synthetic Metals 111, 509-513 (2000).

(91) Femtosecond Photovoltage Excitation Cross-Correlation on a Ladder-Type Polymer,
G. Lanzani, C. Zenz, G. Cerullo, W. Graupner, G. Leising, U. Scherf, S. De Silvestri,
Synthetic Metals 111, 493-496 (2000).

(92) Optical Characterization of Poly-2,5-Diheptyl-1,4-Phenylene-alt-2,5-Thienylene,
M. A. Loi, E. J. W. List, C. Gadermaier, W. Graupner, G. Leising, G. Bongiovanni, A. Mura, J.-J. Pireaux and K. Kaeriyama,
Synthetic Metals 111, 519-522 (2000).

(93) Photophysical Studies on Nanostructured PPV-Systems,
C. Gadermaier, E. J.W. List, P. Markart, W. Graupner, J. Partee, J. Shinar, R. Smith, D. Gin, G. Leising,
Synthetic Metals 111, 523-526 (2000).

(94) Influence of the Molecular Geometry on the Photoexcitations of Highly Emissive Organic Semiconductors,
S. Yang, W. Graupner, S. Guha, P. Puschnig, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, G. Leising, C. Ambrosch-Draxl,
SPIE Proceedings 3797, 26-37 (1999). [6608]

(95) Frequency-Resolved Delayed Fluorescence and Optically Detected Magnetic Resonance (ODMR) Studiesof Triplet and Polaron Dynamics in p-Conjugated Materials & Devices,
J. Shinar, J. Partee, B. L. Uhlhorn, C. H. Kim, M. K. Lee, E. L. Frankevich, E. J. W. List, W. Graupner, and G. Leising
SPIE Proceedings 3797, 76-88 (1999)..

(96) Radiative Defects and Optical Response in Oriented Para-Hexaphenyl Films
M. Ariu, G. Bongiovanni, M. A. Loi, A. Mura, A. Piaggi, L. Rossi, W. Graupner, F. Meghdadi, G. Leising,
Chemical Physics Letters 313, 405-410 (1999).

(97) Kinetics of Singlet and Triplet Excitons in a Wide Bandgap Copolymer,
M. A. Loi, C. Gadermaier, E. J. W. List, G. Leising, W. Graupner, G. Bongiovanni, A. Mura, J.-J. Pireaux and K. Kaeriyama.
Physical Review B 61, 1859-1865 (2000).  [12806]

(98) Optical Properties of Organic Wide Bandgap Semiconductors Under High Pressure,
S. Guha,  W. Graupner, S. Yang, M. Chandrasekhar, H. R. Chandrasekhar,
Chapter 9 in Anisotropic Organic Materials - Approaches to Polar Order.
Rainer Glaser and Piotr Kaszynski, Editors. ACS Symposium Series, Volume 798.
American Chemical Society: Washington, D.C., July 2001. ISBN: 0841236895.
(Abstracts of Papers of the American Chemical Society 218: 81-ORGN , Part 2 August 22 1999,
Click for Table of Contents) [6608]

(99) Studies of the Intermolecular Interactions in Polypyrrole and Conjugated Composites Based on Polypyrrole,
R. Turcu, W. Graupner, C. Filip, A. Bot, M. Brie, R. Grecu,
Advanced Materials for Optics and Electronics 9, 157-165 (1999). [6608]

(100) Localized Triplet Excitations and the Effect of Photo-Oxidation in Ladder-Type Poly(Para-Phenylene)s and Oligo(Para-Phenylene)s,
E. J. W. List, J. Partee,  J. Shinar, U. Scherf, K. Müllen, E. Zojer, K. Petritsch, G. Leising, W. Graupner,
Physical  Review B 61, 10807-10814(2000). [12806]

(101) Characterization of Polymer Light-Emitting Diodes Fabricated
by Ionically Self-Assembled Monolayer Technique,
D. Marciu, M.B. Miller, J. R. Heflin, M.A. Murray, A.L. Ritter, P. J. Neyman,
W. Graupner, H. Wang, H. W. Gibson, R. M. Davis
Materials Research Society Symposium Proceedings in print (2000).

(102) Charged Defects in Highly Emissive Organic Wide Bandgap Semiconductor Devices,
E. J. W. List, C. H. Kim, J. Shinar, A. Pogantsch, G. Leising, W. Graupner,
Applied Physics Letters 76, 2083-2085 (2000). [12806]

(103) Efficiency Optimization in Ionically Self-Assembled Thin Film Polymer Light-Emitting Diodes,
D. Marciu, M.B. Miller, A.L. Ritter, M.A. Murray, P.J. Neyman, W. Graupner, J. R. Heflin, H. Wang, H.W. Gibson, R. M. Davis
SPIE Proceedings 3938, 169-179 (2000).

(104) Photovoltaic Responses in Ionically Self-Assembled Nanostructures
Containing Conjugated Polymers and Fullerenes,
C. Brands, T. Piok, P. J. Neyman, A. Erlacher, C. Soman, M. A. Murray, R. Schroeder,
J. R. Heflin, W. Graupner, D. Marciu, A. Drake, M. B. Miller, H. Wang, H. Gibson,
H. C. Dorn, G. Leising, M. Guzy, R.M. Davis,
SPIE Proceedings 3937, 51-62 (2000).

(105) Raman Study of the Intramolecular Vibrational Modes in Sexithiophene Single Crystals,
M. A. Loi, Q. Cai, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, G. Bongiovanni, A. Mura, C. Botta, F. Garnier
Synthetic Metals 116, 321-326 (2001). [Aspires 1999]

(106) High Pressure Effect on the Photoluminescence Intensity of Sexithiophene Single Crystals,
M. A. Loi, G. Bongiovanni, A. Mura, Q. Cai, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, F. Garnier,
Synthetic Metals 116, 311-315 (2001). [Aspires 1999]

(107) Density of States of Ensembles of Conjugated Molecules
Deduced from Photobleaching and Absorption Spectra,
W. Graupner, M. Wohlgenannt,
Synthetic Metals 116, 193-197 (2001). [Aspires 1999, 12806]

(108) Defect Characterization of Highly Emissive Para-Phenylene-Type Molecular Films by Photoluminescence-Detected Magnetic Resonance and Thermally Stimulated Charge Transport,
E. J. W. List, C. H. Kim, J. Shinar, A. Pogantsch.
K. Petritsch, G. Leising, W. Graupner,
Synthetic Metals 116, 81-85 (2001).
[Aspires 1999, 12806]

(109) Spectroscopy of Conducting and Insulating Ladder-Type Poly Para-Phenylene Device Structures,
M. Wohlgenannt, E.J.W. List, C. Zenz, G. Leising, W. Graupner and Z. V. Vardeny,
Synthetic Metals 116, 353-356 (2001). [Aspires 1999, 12806]

(110) Pressure Studies on the Intermolecular Interactions in  Biphenyl,
P. Puschnig, C. Ambrosch-Draxl, G. Heimel, E. Zojer, R. Resel, G. Leising, M. Kriechbaum, W. Graupner,
Synthetic Metals 116, 327-331 (2001). [6608]

(111) Photovoltaic Cells Based on Ionically Self-Assembled Nanostructures,
T. Piok, C. Brands, P. J. Neyman, A. Erlacher, C. Soman, M. A. Murray, R. Schroeder, W. Graupner, J. R. Heflin, D. Marciu, A. Drake, M. B. Miller, H. Wang, H. Gibson, H. C. Dorn, G. Leising, M. Guzy, R.M. Davis,
Synthetic Metals 116, 343-347 (2001). [DMR 9120004]

(112) Excitation Energy Migration in Highly Emissive Semiconducting Polymer Blends Probed by Photoluminescence Detected Magnetic Resonance,
E.J.W. List, J. Partee, J. Shinar, C. Gadermaier, G. Leising, W. Graupner,
Synthetic Metals 116, 185-188 (2001). [12806]

(113) High Pressure Raman Studies on The Structural Conformation of Oligophenyls,
G. Heimel, P. Puschnig, Q. Cai, C. Martin, E. Zojer, W. Graupner, M. Chandrasekhar, H. R. Chandrasekhar, C. Ambrosch-Draxl, G. Leising,
Synthetic Metals 116, 163-166 (2001). [Aspires 1999, 6608]

(114) Femtosecond Photocurrent Cross-Correlation on a Laddertype Polymer,
C. Zenz, G. Lanzani, G. Cerullo, W. Graupner, G. Leising, U. Scherf, S. De Silvestri,
Synthetic Metals 116, 27-30 (2001).

(115) Efficient Charge Generation in Conjugated Molecules,
W. Graupner, T. Piok, C. Brands, P. J. Neyman, A. Erlacher, C. Soman, M. A. Murray, R. Schroeder, J. R. Heflin, D. Marciu, A. Drake, M. B. Miller, H. Wang, H. Gibson, H. C. Dorn, G. Leising, M. Guzy, R.M. Davis,
Abstracts of Papers of the American Chemical Society 220: 258-PMSE, Part 2, Aug 20, 2000.

(116) Direct Observation of Ultrafast Field Induced Charge Photogeneration in Conducting Polymers,
G. Cerullo, M. Nisoli, S. Stagira, S.  De Silvestri, G. Lanzani, W. Graupner, E. J. W. List, G. Leising,
Summaries of Papers Presented at the International Quantum Electronics Conference, Conference Edition.
Technical Digest Series, Vol.7 (IEEE Cat. No.98CH36236) 137-138 (1998).

(117) Amplified Spontaneous Emission in Blue-Emitting  Poly(Para-Phenylene) Ladder-Type Polymer,
S. Stagira, G. Cerullo, M. Nisoli, S. De Silvestri, G. Lanzani, W. Graupner, G. Leising,
Summaries of Papers Presented at the International Quantum Electronics Conference, Conference Edition.
Technical Digest Series, Vol.7 (IEEE Cat. No.98CH36236) 189-190 (1998).

(118) The Mechanism of Excitation Energy Transfer in Highly Emissive Semiconducting Polymers,
E.J.W. List, N. Schulte, A.D. Schlüter, U. Scherf, K. Müllen, W. Graupner and G. Leising,
Chemical Physics Letters 325, 132 (2000).  [12806]

(119) White Light Emission from a Polymer-Macromolecule Blend System due to Energy and Charge Transfer Excitation,
E.J.W. List, G.Leising, N. Schulte, A.D. Schlüter, U. Scherf, W. Graupner,
Japanese Journal of Applied Physics 39, L 760-762 (2000). [12806]

(120) Geometry Dependent Electronic Properties of Highly Fluorescent Conjugated Molecules,
S. Yang, W. Graupner, S. Guha, P. Puschnig, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, G. Leising, C. Ambrosch-Draxl,
Physical Review Letters 85, 2388-2391 (2000). [6608]

(121) Photocurrent Excitation Cross-Correlation On A Laddertype Polymer,
C. Zenz, G. Lanzani, G. Cerullo, W. Graupner, G. Leising, U. Scherf, S. De Silvestri,
Synthetic Metals 121, 1599-1600 (2001).

(122) Photocarrier Generation Quantum Yield For Ionically Self-Assembled Monolayers,
T. Piok, R. Schroeder, C. Brands, J. R. Heflin, G. Leising, W. Graupner,
Synthetic Metals 121, 1589-1590 (2001).

(123) Pressure-Induced Quenching of the Photoluminescence in Sexithiophene Single Crystals Observed
by Femtosecond Spectroscopy,
M. A. Loi, G. Bongiovanni, A. Mura, Q. Cai, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, F. Garnier,
Synthetic Metals 119, 645-646 (2001). [6608]

(124) Excitation Energy Migration in p-Conjugated Polymers,
E.J.W. List, C. Creely, G. Leising, N. Schulte, A.D. Schlüter, U. Scherf, K. Müllen, W. Graupner,
Synthetic Metals 119, 659-660 (2001). [Aspires 1999, 12806]

(125) Control of Excited State Dynamics in Ionically Self-Assembled Monolayers of Conjugated Molecules,
R. Schroeder, J. R. Heflin, H. Wang, H. Gibson, W. Graupner,
Synthetic Metals 121, 1521-1524 (2001). [DMR 9120004, SBIR-0074]

(126) On the Structure Of Oligophenyls,
G. Heimel, Q. Cai, C. Martin, P. Puschnig, S. Guha, W. Graupner, C. Ambrosch-Draxl, M. Chandrasekhar, G. Leising,
Synthetic Metals 119, 371-372 (2001).[Aspires 1999, 6608]

(127) Optical Transitions in Para-Phenylenes Under Hydrostatic Pressure,
M. Chandrasekhar, S. C. Yang, S. Guha, Q. Cai, C. M. Martin, H.R. Chandrasekhar, W. Graupner, G. Leising,
Synthetic Metals 119, 657-658 (2001). [6608]

(128) Interaction of Singlet Excitons and Polarons in Devices Based on p-Conjugated Materials,
E. J. W. List, J. Partee, C. H. Kim, W. Graupner, G. Leising, and J. Shinar,
SPIE Proceedings 4105, 450-463 (2001). [12806]

(129) Excitation Energy Migration in Highly Emissive Semiconducting Polymers,
E. J. W. List, C. Creely, G. Leising, B. Schlicke, A.D. Schlüter, U. Scherf, K. Müllen, W. Graupner,
SPIE Proceedings 4105, 419-430 (2001). [12806]

(130) Photoluminescence Studies On Energy Migration in Multilayer Organic Photovoltaic Devices based on Ionically Self-Assembled Monolayers,
R. Schroeder, C. Soman, C. Brands,  J. R. Heflin, W. Graupner, H. Wang, H. Gibson, D. Marciu, M. B. Miller,
SPIE Proceedings 4108, 85-96 (2001). [DMR 9120004, SBIR-0074, Aspires 1999]

(131) High Resolution Color Organic Light Emitting Diode Microsdisplay Fabrication Method
W. Graupner, C. M. Heller, A. P. Ghosh, W. E. Howard,
SPIE Proceedings 4207, 11-19 (2000).

(132) Ultrafast Formation of Nonemissive Species versus Intermolecular Interaction in Single Crystals of Conjugated Molecules,
M. A. Loi, A. Mura, G. Bongiovanni, Q. Cai, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, F. Garnier,
Physical Review Letters 86, 732-735 (2001). [6608]

(133) Dictionary of Material Science and High Energy Physics -
A Volume in the Comprehensive Dicionary of Physics,
Editor: Dipak Basu; 31 Contributors including W. Graupner;
CRC Press 2001, ISBN 0-8493-2889-6

(134) Two-Photon Absorption Properties of Soluble Phenylene-Based Polymers,
R. Schroeder,  W. Graupner, U. Scherf, B. Ullrich,
Materials Research Society Symposium Proceedings 660, in print.

(135) Squeezing Organic Conjugated Molecules - What does one learn,
M. Chandrasekhar, S. Guha, W. Graupner,
Advanced Materials 13, 613-618 (2001).

(136) Dissociation of Hot Excitons in Laddertype Polymer Light Emitting Diodes,
C. Zenz, G. Lanzani, G. Cerullo, W. Graupner, G. Leising, S. DeSilvestri,
Chemical Physics Letters 341, 63-69 (2001).

(137) X-Ray and High Pressure Raman Scattering Studies of Hexaphenyl,
S. Guha, W. Graupner, M. Chandrasekhar, H. R. Chandrasekhar, R. Resel, G. Leising, R. Glaser,
Journal of Physical Chemistry 105, 6203-6211 (2001).[6608]

(138) Two-photon Absorption Saturation in Polyfluorene Solutions
R. Schroeder, B. Ullrich, W. Graupner, U. Scherf,
Journal of Physics: Condensed Matter 13, L313-L318 (2001).

(139) Nonradiative Quenching of Singlet Excitons by Polarons in p-Conjugated Polymers
E.J.W. List, C.H. Kim, W. Graupner, G. Leising, J.Shinar,
Synthetic Metals 119, 511-514 (2001).[Aspires 1999, 12806]

(140) Interaction of singlet excitons with polarons in wide band-gap organic semiconductors: A quantitative study,
E. J. W. List, C.-H. Kim, A. K. Naik, U. Scherf, G. Leising, W. Graupner, and J. Shinar,
Physical Review B 64, (2001).[12806]

(141) The Influence of Self-Absorption on the Photoluminescence of Thin Film CdS Demonstrated by Two-Photon Absorption,
B. Ullrich, R. Schroeder, W. Graupner, H. Sakai,
Optics Express 9, 116-120 (2001).

(142) Singlet Exciton Quenching by Polarons in p-Conjugated Wide Bandgap Semiconductors: a Combined Optical and Charge Transport Study,
E. J. W. List, C. H. Kim, W. Graupner, G. Leising, and J. Shinar,
Materials Science and Engineering B85, 218-223 (2001).

(143) Intrachain exciton quenching analysis in conjugated polymers by two-photon absorption,
R. Schroeder, W. Graupner, U. Scherf, and B. Ullrich,
Journal of Chemical Physics 116, 3449-3454 (2002).

(144) Nanoscale Control of the Polymer-Fullerene Interface in Photovoltaic Devices by Thermally-Controlled Interdiffusion,
M. Drees, R.M. Davis,D. Marciu, K. Premaratne, W. Graupner, M. Miller, J.R. Heflin,
Materials Research Society Symposium Proceedings 708, BB10.35.1-BB10.35.6 (2002).

(145) Optical Spectroscopic Studies of a Soluble Fluorene-Based Conjugated Polymer: A Hydrostatic Pressure and Temperature Study,
S. Guha, J.D. Rice, C. M. Martin, W. Graupner, M. Chandrasekhar, H.R. Chandrasekhar, and U. Scherf
Materials Research Society Symposium Proceedings 708, BB10.7.1-BB10.7.6 (2002).

(146) Enhanced Photovoltaic Response in Ionically Self-Assembled Monolayer Thin-Film Devices,
D. Marciu, M.B. Miller, C. Kozikowski, J.R. Heflin, Sung Cho, B.A. Reid, K.Kuroda, W.Graupner,
Hong Wang, H.W. Gibson, R.M. Davis,
Materials Research Society Symposium Proceedings 708, BB9.4.1-BB9.4.7 (2002).

(147) Primary optical excitations and excited-state interaction energies in sexithiophene,
M. A. Loi, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, F. Garnier, A. Mura, G. Bongiovanni,
Physical Review B 66, 113102-pp.1-4 (2002) .

The above article has been selected for the September 15, 2002 issue of the Virtual Journal of Biological Physics Research.  The Virtual Journal is an edited compilation of links to articles from participating publishers, covering a focused area of frontier research. One can access the Virtual Journal at http://www.vjbio.org.

(148) Random Walks with Imperfect Trapping in the Decoupled-Ring Approximation,
T. Aspelmeier, J. Magnin, W. Graupner, U. Taeuber,
European Physical Journal B 28, 441-450 (2002).

(149) Science and Technology of Organic Light Emitting Diodes - From Basic Chemistry and Physics to High Resolution Organic Displays,
W. Graupner,
The Spectrum 15, Issue 2, 20-24 (2002).

(150) Nanoscale Control of the Polymer-Fullerene Interface in Photovoltaic Devices by Heat-induced Interdiffusion,
M. Drees, K. Premaratne, W. Graupner, J.R. Heflin, R.M. Davis, D. Topasna, M. Miller,
Applied Physics Letters 81, 4607-4609 (2002).

(151) Ultrafast Formation of Nonemissive States in Organic Semiconductors,
M. A. Loi, A. Mura, G. Bongiovanni, Q. Cai, C. Martin, H. R. Chandrasekhar, M. Chandrasekhar, W. Graupner, F. Garnier,
Istituto Nazionale per la Fisica della Materia (INFM), Highlights 2000/2001, 81-83.

(152) Direct Evidence for Singlet-Triplet Exciton Annihilation in p-Conjugated Polymers,
E. J. W. List, U. Scherf, K. Müllen, W. Graupner, C.-H. Kim, J. Shinar,
Physical Review B in print..


Acknowledgments:

Leuchtdioden im Chemieunterricht,
W. G. Pohl, T. Faltner,
Naturwissenschaften im Unterricht -- Chemie, Heft 44, Maerz 1998, pp. 36.

Absorption and subsequent emission saturation of two-photon excited materials: theory and experiment,
R. Schroeder and B. Ullrich,
Optics Letters 27, pp. 1285 (2002).

Photophysics of conjugated polymers: the contribution of ultrafast spectroscopy,
Christoph Gadermaier and Guglielmo Lanzani,
Journal of Physics: Condensed Matter 14, 9785–9802 (2002).
 

Project Legend: (under construction)

[6608] - Optical High Pressure Experiments - Basic Research and Technical Application,
            Austrian National Bank 1997-1999, Project 6608
[12806] - Electrically and Optically Excited States in Conjugated Molecules -
Basic Research and Technological Application,
            Austrian Science Foundation 1998-2001, Project P12806-PHY
[Aspires 1999] - Organic Optoelectronic Devices,
            Aspires Program at Virginia Tech, 1999
[DMR 9120004] Optoelectronic Polymer Films Fabricated from Ionically Self-Assembled Monolayers,
            NSF Science & Technology Center: High Performance Polymeric Adhesives and Composites - 1999, DMR 9120004
[SBIR-0074] Air Force SBIR F49620-98-C-0074
 

Journal Statistics (under construction)
(only papers which have appeard or are in print are counted)
 
 

Physical Review Letters:

7

Book Chapters

5

Physical Review B: 

9

Solid State Communications

1

Chemical Physics Letters

6

Applied Physics Letters

4

Journal of Physical Chemistry

1

Journal of Applied Physics

1

Japanese Journal of Applied Physics

1

Synthetic Metals

43

Thin Solid Films

1

Molecular Crystals Liquid Crystals

2

Journal of Luminescence

1

Advanced Materials

2

Journal of Chemical Physics

2

Chemical Physics

1

Optics Express

1

Journal of Physics: Condensed Matter

1

Journal of Physical Chemistry

1

SPIE Proceedings

14

Advanced Materials for Optics and Electronics

1

Materials Research Society Symposium Proceedings

13

Materials Science and Engineering

1


 
  

 

Private webpage of Dr. Wilhelm Graupner

Contacts: willi_graupner@yahoo.com; +43 664 1200 851; +49 172 858 9872;

Relaunch on Dec.3rd 2005 to replace http://members.a1.net/graupner/wg-index.html