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    题名: Ruthenium Sensitizer with Thienothiophene-Linked Carbazole Antennas in Conjunction with Liquid Electrolytes for Dye-Sensitized Solar Cells
    作者: Chen,CY;Pootrakulchote,N;Hung,TH;Tan,CJ;Tsai,HH;Zakeeruddin,SM;Wu,CG;Gratzel,M
    贡献者: 化學學系
    关键词: CONJUGATED BIPYRIDINE;ORGANIC-DYES;TIO2 FILMS;EFFICIENCY;RECOMBINATION;ABSORPTIVITY;PERFORMANCE;COMPLEXES;ENHANCE;TRANSPORT
    日期: 2011
    上传时间: 2012-03-27 18:13:01 (UTC+8)
    出版者: 國立中央大學
    摘要: A new heteroleptic ruthenium complex, coded CYC-B12, incorporating an antenna ligand composed of sequential connections of a thienothiophene conjugated bridge and carbazole hole-transport moiety was prepared. This new sensitizer exhibits a lower energy MLCT band centered at 555 nm with a high molar absorption coefficient of 2.24 x 10(4) M(-1) cm(-1). The device sensitized by CYC-B12 in conjunction with a volatile electrolyte shows a high photovoltaic efficiency of 9.4% under an illumination of standard global AM 1.5G sunlight. With a low-volatile electrolyte, the cell based on this new sensitizer shows not only a good conversion efficiency of 8.2% but also excellent durability (>96%) under light soaking at 60 degrees C in a simulated sunlight for 1000 h. The difference in the electron recombination kinetics caused by various liquid electrolytes or aging process is also investigated by employing the transient photoelectrical measurements.
    關聯: JOURNAL OF PHYSICAL CHEMISTRY C
    显示于类别:[化學學系] 期刊論文

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