Journal
ADVANCED MATERIALS
Volume 27, Issue 45, Pages 7462-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201503902
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Funding
- Ministry of Education, Korea
- National Research Foundation of Korea [2007-00015] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Two medium-bandgap polymers composed of benzo[1,2-b:4,5-b']dithiohpene and 2,1,3-benzothiadiazole with 6-octylthieno[3,2-b]thiophene as a p-bridge unit are synthesized and their photovoltaic properties are analyzed. The two polymers have deep highest occupied molecular orbital energy levels, high crystallinity, optimal bulk-heterojunction morphology, and efficient charge transport, resulting in a power conversion efficiency of as high as 9.44% for a single-junction polymer solar-cell device.
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