Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 32, Issue 19, Pages 1551-1556Publisher
WILEY-BLACKWELL
DOI: 10.1002/marc.201100327
Keywords
diketopyrrolopyrrole; organic photovoltaics; organic thin-film transistors; thienylenevinylene
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Funding
- National Research Foundation (NRF) of Korea
- Korean Government (MEST) [NRF-2009-C1AAA001-2009-0092950, 2010-0029212]
- Bio Imaging Research Center at GIST
- Ministry of Education, Science & Technology (MoST), Republic of Korea [gist-12] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Ministry of Science & ICT (MSIT), Republic of Korea [GIST-12] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0029212] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A novel donor-acceptor-type polymer with a low band-gap that alternates electron-rich thienylenevinylene groups with electron-deficient diketopyrrolopyrrole (DPP) units (PETVTDPP) has been synthesized by Pd-catalyzed Stille cross-coupling polymerization. The polymer shows a broad absorption band of wavelengths that range from 330 to 900 nm, and a low band-gap value of 1.43 eV. The field-effect mobility of an organic thin-film transistor based on this polymer is 0.05 cm(2) . Vs(-1). Bulk-heterojunction solar cells using a mixture of PETVTDPP and PC([71])BM for the active layer show a power conversion efficiency (PCE) of 1.94% under simulated AM 1.5 G solar irradiation at 100 mW . cm(-2).
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