Journal
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
Volume 10, Issue 11, Pages 1810-1816Publisher
SPRINGERNATURE
DOI: 10.1039/c1pp05172e
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Funding
- ANR [JCJC 2010 1002 1]
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Silver nanoparticles were created inside mesoporous titania thin films by different reduction processes. We investigated the influence of the reduction method on the colour and photochromism of these amorphous TiO2 films. The results highlight brown films by optical reduction, gray films by thermal reduction, and red, purple or orange films by chemical reduction. The different size distributions and localizations of the nanoparticles, characterized by UV-visible spectroscopy and electron microscopy, give various photochromic behaviours when exposed to visible laser light. We especially report the bleaching of different film colours under laser exposure.
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