Exciton dissociation in poly-phenylene-vinylene derivative:perylenediimide and hexabenzocoronene derivative:perylenediimide blend systems

C. Im; W. Tian; H. Bässler; A. Fechtenkötter; M. D. Watson; K. Müllen

doi:10.1016/S0379-6779(03)00255-8

Exciton dissociation in poly-phenylene-vinylene derivative:perylenediimide and hexabenzocoronene derivative:perylenediimide blend systems

C. Im, W. Tian, H. Bässler, A. Fechtenkötter, M. D. Watson, K. Müllen

Chemistry

Research output: Contribution to journal › Conference article › peer-review

10 Scopus citations

Abstract

Steady state photoconduction both in a phenyl-substituted copolymeric poly-phenylene-vinylene (PhPPV) and in alkylated hexa-peri-hexabenzocoronene (HBC) doped by perylenediimide (PdI) at a broad range of dopant concentrations has been measured and compared to previous results [J. Chem. Phys. 117 (2002) 1395] on PhPPV doped by trinitrofluorenone (TNF). At relatively small concentration (<10wt.%), the yield of the photogeneration is almost independent of the system and blend ratio because practically every primary excitation dissociates at a donor-acceptor site and the subsequent escape from the coulombic potential is virtually system-independent. At dopant concentrations >10wt.%, the yield of that escape process increases by approximately two orders of magnitude explained by both shielding of the pair potential and the onset of percolative electron motion across the acceptor network.

Original language	English
Pages (from-to)	683-686
Number of pages	4
Journal	Synthetic Metals
Volume	139
Issue number	3
DOIs	https://doi.org/10.1016/S0379-6779(03)00255-8
State	Published - Oct 9 2003
Event	Proceedings of the Fifth International Topical Conference - Venice, Italy Duration: Feb 9 2003 → Feb 14 2003

Bibliographical note

Funding Information:
PhPPV was kindly provided by Covion Organic Semiconductor Co., Germany. Discussions with V.I. Arkhipov are gratefully acknowledged. This work was supported by the OPTODYNAMIK center of the university of Marburg, Germany and the Fond der Chemischen Industrie. WT acknowledges financial support by the National Science Foundation of China (no. 20074013).

Funding

PhPPV was kindly provided by Covion Organic Semiconductor Co., Germany. Discussions with V.I. Arkhipov are gratefully acknowledged. This work was supported by the OPTODYNAMIK center of the university of Marburg, Germany and the Fond der Chemischen Industrie. WT acknowledges financial support by the National Science Foundation of China (no. 20074013).

Funders	Funder number
Verband der Chemischen Industrie
National Natural Science Foundation of China (NSFC)	20074013

Keywords

Exciton dissociation
Organic optoelectronics
Photoconductivity
Photovoltaic device
Semiconducting polymer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/S0379-6779(03)00255-8

Cite this

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title = "Exciton dissociation in poly-phenylene-vinylene derivative:perylenediimide and hexabenzocoronene derivative:perylenediimide blend systems",

abstract = "Steady state photoconduction both in a phenyl-substituted copolymeric poly-phenylene-vinylene (PhPPV) and in alkylated hexa-peri-hexabenzocoronene (HBC) doped by perylenediimide (PdI) at a broad range of dopant concentrations has been measured and compared to previous results [J. Chem. Phys. 117 (2002) 1395] on PhPPV doped by trinitrofluorenone (TNF). At relatively small concentration (<10wt.%), the yield of the photogeneration is almost independent of the system and blend ratio because practically every primary excitation dissociates at a donor-acceptor site and the subsequent escape from the coulombic potential is virtually system-independent. At dopant concentrations >10wt.%, the yield of that escape process increases by approximately two orders of magnitude explained by both shielding of the pair potential and the onset of percolative electron motion across the acceptor network.",

keywords = "Exciton dissociation, Organic optoelectronics, Photoconductivity, Photovoltaic device, Semiconducting polymer",

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note = "Funding Information: PhPPV was kindly provided by Covion Organic Semiconductor Co., Germany. Discussions with V.I. Arkhipov are gratefully acknowledged. This work was supported by the OPTODYNAMIK center of the university of Marburg, Germany and the Fond der Chemischen Industrie. WT acknowledges financial support by the National Science Foundation of China (no. 20074013).; Proceedings of the Fifth International Topical Conference ; Conference date: 09-02-2003 Through 14-02-2003",

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AU - Tian, W.

AU - Bässler, H.

AU - Fechtenkötter, A.

AU - Watson, M. D.

AU - Müllen, K.

N1 - Funding Information: PhPPV was kindly provided by Covion Organic Semiconductor Co., Germany. Discussions with V.I. Arkhipov are gratefully acknowledged. This work was supported by the OPTODYNAMIK center of the university of Marburg, Germany and the Fond der Chemischen Industrie. WT acknowledges financial support by the National Science Foundation of China (no. 20074013).

PY - 2003/10/9

Y1 - 2003/10/9

N2 - Steady state photoconduction both in a phenyl-substituted copolymeric poly-phenylene-vinylene (PhPPV) and in alkylated hexa-peri-hexabenzocoronene (HBC) doped by perylenediimide (PdI) at a broad range of dopant concentrations has been measured and compared to previous results [J. Chem. Phys. 117 (2002) 1395] on PhPPV doped by trinitrofluorenone (TNF). At relatively small concentration (<10wt.%), the yield of the photogeneration is almost independent of the system and blend ratio because practically every primary excitation dissociates at a donor-acceptor site and the subsequent escape from the coulombic potential is virtually system-independent. At dopant concentrations >10wt.%, the yield of that escape process increases by approximately two orders of magnitude explained by both shielding of the pair potential and the onset of percolative electron motion across the acceptor network.

AB - Steady state photoconduction both in a phenyl-substituted copolymeric poly-phenylene-vinylene (PhPPV) and in alkylated hexa-peri-hexabenzocoronene (HBC) doped by perylenediimide (PdI) at a broad range of dopant concentrations has been measured and compared to previous results [J. Chem. Phys. 117 (2002) 1395] on PhPPV doped by trinitrofluorenone (TNF). At relatively small concentration (<10wt.%), the yield of the photogeneration is almost independent of the system and blend ratio because practically every primary excitation dissociates at a donor-acceptor site and the subsequent escape from the coulombic potential is virtually system-independent. At dopant concentrations >10wt.%, the yield of that escape process increases by approximately two orders of magnitude explained by both shielding of the pair potential and the onset of percolative electron motion across the acceptor network.

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KW - Photovoltaic device

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Exciton dissociation in poly-phenylene-vinylene derivative:perylenediimide and hexabenzocoronene derivative:perylenediimide blend systems

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

UN SDGs

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