Redox couple related influences of bulky electron donor as well as spacer in organic dye-sensitized mesoscopic solar cells

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题名:	Redox couple related influences of bulky electron donor as well as spacer in organic dye-sensitized mesoscopic solar cells
作者:	鄭芳怡;Wang, Chunbo;Liang, Mao;Huang, Jingjing;Cheng, Fangyi;Wang, He;Guo, Yajun;Xue, Song
贡献者:	地球科學學院大氣科學學系
关键词:	absorption;chemical reactions;chemical structure;cobalt;Dye-sensitized solar cell;dyes;Electrolyte lifetime;electrolytes;Electron donor;iodides;Organic sensitizers;photosensitizing agents;photovoltaic cells;Photovoltaic properties;thiophene
日期:	2014-09-09
上传时间:	2026-04-21 13:57:36 (UTC+8)
出版者:	Elsevier Ltd.;Elsevier Ltd
摘要:	摘要： For dye-sensitized solar cells (DSCs), it is of great significance to understand the structure–performance relationship of photosensitizers. Herein, we scrutinize the influences of the arylamine electron donors as well as the fused thiophene spacer on the optoelectronic features of thin-film DSCs employing the tris(1,10-phenanthroline)cobalt(II/III) or the iodide/triiodide redox couple. Interestingly, the incorporation of bulky dihexyloxybenzene-substituted triphenylamine (DHOB-TPA) electron donor does not resulted in an improved electron lifetime, which is sharp contrast with the conventional concept on bulky electron donor. On the other hand, the introduction of the DHOB-TPA electron donor or the dithienopyrrole spacer significantly increases the molar absorption coefficients of dyes, which govern the performance of thin-film DSCs. This work demonstrates how organic dyes must be tailored carefully depending on the electrolyte red/ox couple used. [Display omitted] 出版者： Elsevier Ltd 出版日期： 2014-09-09 出處： Tetrahedron, 2014-09, Vol.70 (36), p.6203-6210 版權： 2014 Elsevier Ltd 識別號： ISSN: 0040-4020 識別號： EISSN: 1464-5416 識別號： DOI: 10.1016/j.tet.2014.01.052
显示于类别:	[大氣科學學系] 期刊論文

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