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Chun-Cheng Chou, Fa-Chun Hu, Hsiu-Hsuan Yeh, Hsin-Pei Wu, Yun Chi, John N. Clifford, Emilio Palomares, Shih-Hung Liu, Pi-Tai Chou and Gene-Hsiang Lee Highly Efficient Dye-Sensitized Solar Cells Based on Panchromatic Ruthenium Sensitizers with Quinolinylbipyridine Anchors Angewandte Chemie International Edition 53

Version of Record online: 11 NOV 2013 | DOI: 10.1002/anie.201305975

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Go with the flow: The increased π conjugation of panchromatic RuII sensitizers of type 1 containing a 6-quinolin-8-yl-2,2′-bipyridine rather than a traditional 2,2′:6′,2′′-terpyridine anchor (structure 2) led to a remarkable improvement in absorptivity across the whole UV/Vis/NIR spectral regime. A bulky tert-butyl substituent on the quinolinyl fragment caused an increase in the short-circuit current by suppressing dye aggregation.

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