Morphological changes and multicolor photochromism of Ag nanoparticles deposited on single-crystalline TiO2 surfaces
Morphological changes and multicolor photochromism of Ag nanoparticles deposited on single-crystalline TiO2 surfaces
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DOI：
10.1002/adma.200602823
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发表时间：
2007-10-05
影响因子：
29.4
通讯作者：
Tatsuma, Tetsu
中科院分区：
文献类型：
--
作者：
Matsubara, Kazuki;Tatsuma, Tetsu
银变胖变瘦：光催化沉积在金红石型TiO 2单晶上的银纳米颗粒表现出光致变色性。在单色可见光下，与光共振的颗粒被光电化学溶解，并重新沉积在TiO 2基底或非共振颗粒上。这些尺寸选择性溶解和生长是波长依赖性颜色变化的原因。
Silver gets fat and thin: Ag nanoparticles photocatalytically deposited on rutile TiO2 single crystals exhibit multicolor photochromism. Under monochromatic visible light, particles resonant with the light are photoelectrochemically dissolved, and re-deposited on the TiO2 substrate or non-resonant particles. These size-selective dissolution and growth are responsible for the wavelength-dependent color changes.