Heteroleptic Ruthenium Sensitizers with Hydrophobic Fused-Thiophenes for Use in Efficient Dye-Sensitized Solar Cells

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题名:	Heteroleptic Ruthenium Sensitizers with Hydrophobic Fused-Thiophenes for Use in Efficient Dye-Sensitized Solar Cells
作者:	吳春桂;Lu, Zong-Zhan;Peng, Jia-De;Wu, An-Kai;Lin, Chun-Han;Wu, Chun-Guey;Ho, Kuo-Chuan;Lin, Ying-Chih;Lu, Kuang-Lieh
贡献者:	理學院化學學系
关键词:	Antennas;Design engineering;Dyes;Dyes/pigments;Optimization;Photovoltaic cells;Photovoltaics;Renewable resources;Ruthenium;Sensitizers;Solar cells;Sulfur heterocycles
日期:	2016-03-01
上传时间:	2026-04-21 14:45:11 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： Two fused‐thiophene‐containing ruthenium sensitizers, [Ru(Hdcbpy)(ottip)(NCS)2]–·0.5[H]+·0.5[N(C4H9)4]+ [Z1, H2dcbpy = 4,4′‐dicarboxy‐2,2′‐bipyridine, ottip = 2‐(5‐octylthieno[3,2‐b]thiophen‐2‐yl)‐1H‐imidazo[4,5‐f][1,10]phenanthroline] and [Ru(Hdcbpy)(odttip)(NCS)2]–·0.5[H]+·0.5[N(C4H9)4]+ Z2, odttip = 2‐[6‐octyldithieno(3,2‐b:2′,3′)thiophen‐2‐yl]‐1H‐imidazo[4,5‐f][1,10]phenanthroline, were designed for use in dye‐sensitized solar cell (DSSC) applications. The fused‐thiophene‐based Z1 and Z2 have stronger light‐harvesting capabilities compared with a non‐fused‐thiophene analog, [Ru(Hdcbpy)(otip)(NCS)2]–·0.5[H]+·0.5[N(C4H9)4]+ [JF‐2t, otip = 2‐(5‐octylthiophen‐2‐yl)‐1H‐imidazo[4,5‐f][1,10]phenanthroline], and a standard N3 dye. The power‐conversion efficiency of the Z1‐ and Z2‐sensitized solar cells were superior (8.70 % and 8.15 %) to JF‐2t‐ and N3‐sensitized solar cells (7.85 and 7.40 %, respectively) under standard AM1.5G full sunlight irradiation. The photovoltaic performance of Z1 was better than Z2, primarily owing to the fact that Z1‐based cells have a higher level of dye loading and less charge recombination, as seen from the electrochemical impedance spectroscopy data. This study not only demonstrates the excellent power‐conversion efficiency of new fused‐thiophene ruthenium sensitizers, but also points to the promise that fused‐thiophene antennas might be a useful molecule in the engineering of ruthenium dyes for DSSCs. Optimization of the power‐conversion efficiency in ruthenium sensitizers containing fused‐thiophene antennas was achieved. This result clearly confirms that fused‐thiophenes can be used as a superior antenna in the design of ruthenium sensitizers for greater dye‐sensitized solar cells (DSSC) performance. 其他題名： Eur. J. Inorg. Chem 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2016-03 出處： European journal of inorganic chemistry, 2016-03, Vol.2016 (8), p.1214-1224 版權： Copyright © 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 1434-1948 識別號： EISSN: 1099-0682 識別號： DOI: 10.1002/ejic.201501321
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