The synthesis, structure, and properties of 5,6,11,12-tetraarylindeno[1,2-b]fluorenes and their applications as donors for organic photovoltaic devices
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AbstractThe synthesis, structure, and properties of three new 5,6,11,12-tetraarylindeno[1,2-b]fluorenes are reported. The highly twisted conformations between an indeno[1,2-b]fluorene core and peripheral aryl substitutions endow these indeno[1,2-b]fluorene derivatives with good photostability for use as electron donors for vacuum-deposited photovoltaic devices. The optimized device based on a TAInF2 donor blended with C70 as an electron acceptor produces a high open-circuit voltage (>0.9 V) and a power conversion efficiency of 2.91%. This work demonstrates the first application of an indenofluorene derivative as an electron donor in organic solar cells.
CitationLo Y-C, Ting H-C, Li Y-Z, Li Y-H, Liu S-W, et al. (2017) The synthesis, structure, and properties of 5,6,11,12-tetraarylindeno[1,2-b]fluorenes and their applications as donors for organic photovoltaic devices. Org Chem Front 4: 675–681. Available: http://dx.doi.org/10.1039/c6qo00673f.
SponsorsThe authors acknowledge financial support from the Ministry of Science and Technology Taiwan (Grant No. 104-2113-M-002-006-MY3 and 104-2119-M-131-001).
PublisherRoyal Society of Chemistry (RSC)
JournalOrg. Chem. Front.