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Effects of solution processing on the photovoltaic response of poly(n-vinyl carbazole) films

Authors

  • P. S. Chung,

    1. Department of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, Florida 32611-6400
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  • P. H. Holloway

    Corresponding author
    1. Department of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, Florida 32611-6400
    • Department of Materials Science and Engineering, University of Florida, P.O. Box 116400, Gainesville, Florida 32611-6400
    Search for more papers by this author

Abstract

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

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