期刊
RSC ADVANCES
卷 5, 期 105, 页码 86453-86462出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra15389a
关键词
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资金
- Nature Science Foundation of Guangdong Province [2014A030313630]
- National Nature Science Foundation of China [51476036, 21342003]
- Project for High-level Personnel of University in Guangdong Province [[2013]246]
- Production-Study-Research Combinational Project of Guangdong Province
- Ministry of Education [2012B091100296]
- University Science and Technology Innovation Key Project of Guangdong Province [cxzd1148]
- University and Scientific Research Institution Key Project of Dongguan City [2012108101005]
A series of novel BODIPY derivatives (BDP1-5) containing a thiophene motif at the meso-position and various electron-donating units at the 3,5-positions were designed and synthesized. With the extended D-A-D conjugated skeleton, these dyes exhibit effective panchromatic absorption with maximum extinction coefficients over 1.4 x 10(5) M-1 cm(-1) in solution state and dramatically higher values in the film state. Suitable HOMO/LUMO energy levels, around -5.4 eV and -3.8 eV, respectively, vs. PCBM combined with the good solubility and perfect film-forming ability make them attractive for BHJ solar cell applications. The photovoltaic device based on BDP2 and PC61BM exhibits a potential power conversion efficiency of 2.12%, a moderate open-circuit voltage of 0.73 V and a relatively high short-circuit current density of 7.64 mA m(-2).
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