Journal
CHEMPHYSCHEM
Volume 7, Issue 12, Pages 2520-2525Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.200600393
Keywords
block copolymers; charge carrier injection; honeycomb structures; photoelectric conversion; thin films
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A light-emitting poly (distyryldimethylbenzene-co-triethylene glycol) rod-coil block copolymer was used to fabricate films with three-dimensionally ordered honeycomb structures by the breath-figure method. Photocurrent generation and photovoltaic performonce ore studied, and the dependence of photocurrent on applied electric field is investigated. Introducing the ordered porous structure significantly improves the photoelectric conversion behavior, because porous structures not only enhance the light-harvesting efficiency but also benefit charge separation and charge transfer. This phenomenon may have great prospects for enhancing the photovoltaic behovior of organic thin-film devices.
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