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Effects of solution processing on the photovoltaic response of poly( n ‐vinyl carbazole) films
Author(s) -
Chung P. S.,
Holloway P. H.
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.31428
Subject(s) - pedot:pss , chlorobenzene , carbazole , indium tin oxide , materials science , electric field , polymer chemistry , chemical engineering , indium , analytical chemistry (journal) , thin film , chemistry , polymer , optoelectronics , organic chemistry , nanotechnology , composite material , physics , quantum mechanics , engineering , catalysis
The effects of solution processing on the photovoltaic response of poly( n ‐vinyl carbazole) (PVK) films were investigated. PVK films were formed by spincasting onto glass coated with indium tin oxide (ITO) and poly(3,4‐ethylenedioxythiophene) (PEDOT)–polystyrenesulfonate (PSS). Some of the PVK films were redissolved in chlorobenzene and redried in the absence or presence of an electric field. Illuminated current–voltage characteristics were measured for an ITO/PEDOT:PSS/PVK/Ca:Al device. Films spincast from a 50 mg/mL solution, redissolved, and dried in the absence of the electric field exhibited a 26% higher charge collection efficiency than films dried in the presence of the electric field. The increased charge collection efficiency was attributed to changes in the molecular configuration of the PVK films. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010