Photochromic effect in molybdenum-oxide cluster systems

被引:6
作者
Andreev, VN [1 ]
Nikitin, SE
Klimov, VA
Chudnovskii, FA
Kozyrev, SV
Leshchev, DV
机构
[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
[2] Russian Minist Sci, Inst High Efficiency Eomputat & Databases, St Petersburg, Russia
关键词
D O I
10.1134/1.1130969
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 [凝聚态物理];
摘要
The photochromic effect under UV illumination has been studied in cluster systems of molybdenum oxides in aqueous solutions of citric acid. This paper reports the first observation of two types of systems exhibiting different photochromism. Systematic measurements of the optical characteristics, proton concentration, and photogalvanic emf have been carried out as functions of composition. A model is proposed for the molybdenum-oxide-cluster-citric-acid complex, in which intramolecular electron transfer occurs under UV illumination. (C) 1999 American Institute of Physics. [S1063-7834(99)04207-0].
引用
收藏
页码:1210 / 1215
页数:6
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