期刊
DYES AND PIGMENTS
卷 121, 期 -, 页码 199-203出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2015.05.024
关键词
Broad-band absorbing; POSS; Hybrids; Azo; Anthracene; Squaraine
资金
- National Natural Science Fund of China [21471030, 21271040, 21171034]
- Shanghai Municipal Natural Science Foundation for Youths [12ZR144100]
- Chen Guang Project by Shanghai Municipal Education Commission [12CG37]
- Shanghai Education Development Foundation
Broadening the absorption spectra of dyes is an effective way to increase the energy conversion efficiency in dye-sensitized solar cells. Here POSS-based hybrids with broad-band absorbing properties were successfully prepared by using octavinyl-polyhedral oligomeric silsesquioxane (OV-POSS) and three organic molecules with their absorption band in the range of UV, Vis and NIR via Heck reaction. The structure and property of the hybrids were well characterized by FTIR, H-1 NMR, UV-Vis-NIR and fluorescence spectra. It was found that the hybrids not only combined the absorbing bands of different dyes, but also prevented the aggregation of dye chromophores, resulting in an improvement in optical stability. (C) 2015 Elsevier Ltd. All rights reserved.
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