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Electric Field and Wavelength Dependence of Charge Carrier Photogeneration in Soluble Poly( p ‐phenylenevinylene) Derivatives
Author(s) -
Däubler T. K.,
Cimrová V.,
Pfeiffer S.,
Hörhold H.H.,
Neher D.
Publication year - 1999
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199910)11:15<1274::aid-adma1274>3.0.co;2-r
Subject(s) - materials science , charge carrier , optoelectronics , electric field , conjugated system , space charge , charge (physics) , photochemistry , electrode , polymer , wavelength , photodiode , electron mobility , electron , chemistry , physics , quantum mechanics , composite material
The charge carrier photogeneration efficiency (η) of two poly( p ‐phenylenevinylene) derivatives is determined by emission‐limited photoinduced xerographic discharge (XD). High efficiencies of up to 20 % at 100 V/μm are reported. The advantages of XD, for example, that the build up of space charge is prevented and problems associated with a second electrode can be circumvented, are also described. Photogeneration of charge carriers in conjugated polymers is of interest for applications in photoreceptors, photodiodes, and solar cells.