Combining Light Harvesting and Electron Transfer in Silica-Titania-Based Organic-Inorganic Hybrid Materials

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/53714

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题名:	Combining Light Harvesting and Electron Transfer in Silica-Titania-Based Organic-Inorganic Hybrid Materials
作者:	Lin, Cheng-lan;Chen, Chih-hsien;Lim, Tsong-shin;Fann, Wunshain;Luh, Tien-yau
贡献者:	淡江大學化學工程與材料工程學系
关键词:	Electron transfer;FRET (fluorescence resonant energy transfer);Hybrid materials;Silica;Titania
日期:	2008-03-01
上传时间:	2011-05-20 09:56:32 (UTC+8)
出版者:	Wiley
摘要:	A convenient protocol to fabricate an organic–inorganic hybrid system with covalently bound light-harvesting chromophores (stilbene and terphenylene–divinylene) and an electron acceptor (titanium oxide) is described. Efficient energy- and electron-transfer processes may take place in these systems. Covalent bonding between the acceptor chromophores and the titania/silica matrix would be important for electron transfer, whereas fluorescence resonant energy transfer (FRET) would strongly depend on the ratio of donor to acceptor chromophores. Time-resolved spectroscopy was employed to elucidate the detailed photophysical processes. The coupling of FRET and electron transfer was shown to work coherently to lead to photocurrent enhancement. The photocurrent responses reached a maximum when the hybrid-material thin film contained 60 % acceptor and 40 % donor.
關聯:	Chemistry-An Asian Journal 3(3), pp.578-584
DOI:	10.1002/asia.200700368
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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