| 光致变色介孔二氧化硅/磷钼酸复合薄膜的制备与性能 |
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| 引用本文： | 田甜,张学骜,王建方,吴文健,骆志刚.光致变色介孔二氧化硅/磷钼酸复合薄膜的制备与性能[J].光电技术应用,2010,25(2):42-44,50. |
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| 作者姓名： | 田甜 张学骜 王建方 吴文健 骆志刚 |
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| 作者单位： | 1. 国防科技大学计算机学院,湖南长沙,410073
2. 国防科技大学理学院,湖南长沙,410073 |
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| 基金项目： | 国防科技大学校预研基金，教育部新世纪优秀人才支持计划 |
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| 摘 要： | 利用蒸发诱导自组装和后植入的方法,制备出了在紫外光照下可变色的二氧化硅/磷钼酸复合薄膜.结果表明,磷钼酸粒子很好的分散并牢牢附着在有机胺改性的二氧化硅介孔薄膜的孔道中;经紫外光照后发生电荷转移,杂多阴离子被还原成杂多蓝,由无色变成蓝色,而薄膜的褪色过程则与氧气存在有关.
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| 关 键 词： | 光致变色 介孔复合薄膜 磷钼酸 二氧化硅 |
Preparation and Properties of Photochromic Mesoporous Silica/Molybdphosphoric Acid Composite Thin Films |
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| TIAN Tian,ZHANG Xue-ao,WANG Jian-fang,WU Wen-jian,LUO Zhi-gang.Preparation and Properties of Photochromic Mesoporous Silica/Molybdphosphoric Acid Composite Thin Films[J].Electro-Optic Technology Application,2010,25(2):42-44,50. |
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| Authors: | TIAN Tian ZHANG Xue-ao WANG Jian-fang WU Wen-jian LUO Zhi-gang |
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| Affiliation: | 1.National University of Defense Technology,College of Computer,Changsha 410073,China;2.National University of Defense Technology,College of Science,Changsha 410073,China) |
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| Abstract: | The photochromic mesoporous silica/ molybdphosphoric acid composite thin films were prepared by evaporation induced self-assembly process and wetness impregnation.The results indicate that the PMo molecules are homogeneously distributed and immobilised inside silica mesopores modified by organic amine.The composite thin films change from colorless to blue under ultraviolet irradiation.It is shown that the charge transfer occurs by reduction of heteropolyanions accompanying the formation of heteropolyblues,and the bleaching process of composite thin films is closely related to the presence of oxygen. |
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| Keywords: | photochromism mesoporous composite thin films molybdphosphoric acid silica |
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