引用本文:
管自生, 马颖, 曹亚安, 纪学海, 姚建年. 钛凝胶的光致变色和电致变色特性[J]. 物理化学学报,
2000, 16(01): 5-8.
doi:
10.3866/PKU.WHXB20000102
Citation: Guan Zi-Sheng, Ma Ying, Cao Ya-An, Ji Xue-Hai, Yao Jian-Nian. Characterization of the Photochromic and Electrochromic Titania Gel[J]. Acta Physico-Chimica Sinica, 2000, 16(01): 5-8. doi: 10.3866/PKU.WHXB20000102
Citation: Guan Zi-Sheng, Ma Ying, Cao Ya-An, Ji Xue-Hai, Yao Jian-Nian. Characterization of the Photochromic and Electrochromic Titania Gel[J]. Acta Physico-Chimica Sinica, 2000, 16(01): 5-8. doi: 10.3866/PKU.WHXB20000102
English
Characterization of the Photochromic and Electrochromic Titania Gel
Abstract:
Titania gel is very sensitive to change of color to blue-purple by UV irradiation and to brown color under extra electric field polarzation. The UV absorption spectra of the photochromic (PC) and electrochromic(EC) titania gel are different to that of the nanocrystalline TiO_2 which changes to blue color by UV irradiation or under extra electric field polarization. The steady-state ESR measurements at room temperature indicate that ESR signals of Ti3+ appeared in PC and EC titania gel with the g values corresponding to 1.9505 and 1.9512, respectively.
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Key words:
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Titania gel
- / Photochromism
- / Electrochromism
- / ESR
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