期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 10, 期 8, 页码 1739-1745出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ee00805h
关键词
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资金
- NSFC [51573107, 91633301, 21432005]
- Foundation of State Key Laboratory of Polymer Materials Engineering [sklpme 2014-3-05, sklpme 2015-2-01]
Low bandgap small molecules, BDTTNTTR and BDTSTNTTR, with benzo[1,2-b:4,5-b'] dithiophene (BDT) as the central donor unit and naphtho[1,2-c:5,6-c'] bis[1,2,5]thiadiazole (NT) as the second acceptor block, which were also p-bridged with terthiophenes on both sides, and end-capped with 3-ethylrhodanine electron-accepting groups, have been successfully synthesized for highly efficient small molecule solar cells (SM-OSCs). Based on tactful material design and device engineering, the resulting SM-OSCs processed with a halogen-free solvent of CS2 exhibited a high efficiency of 11.53% with a very small energy loss of 0.57 eV.
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