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Journal of Sol-Gel Science and Technology
Published in: Journal of Sol-Gel Science and Technology 2/2017

10-03-2017 | Original Paper: Sol-gel and hybrid materials for optical, photonic and optoelectronic applications

Preparation of photosensitive sol and patterned tungsten oxide films by using 2,2-dipyridyl as a chemical modifier

Authors: Yun Gao, Yang Ren, Gaoyang Zhao

Published in: Journal of Sol-Gel Science and Technology | Issue 2/2017

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Abstract

A tungsten oxide gel film was prepared from a methanol solution containing W-chelate, which was synthesized by the chemical reaction between WCl6 and 2,2-dipyridyl. The UV spectra results indicated that the gel film had a UV photosensitive behavior. Using its property, a tungsten oxide gel pattern was fabricated by selective irradiation followed by leaching in organic solvents. Finally, an amorphous WO3 pattern was obtained after the heat treatment at 250 °C in O2 ambient for 120 min. The optical contrast (ΔT) at a wave band of 632.8 nm was about 43%.

Graphical Abstract

https://static-content.springer.com/image/art%3A10.1007%2Fs10971-017-4340-0/MediaObjects/10971_2017_4340_Figa_HTML.gif
previous article Structural and optical properties of nano-crystalline ZnO thin films synthesized by sol–gel method
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Metadata
Title
Preparation of photosensitive sol and patterned tungsten oxide films by using 2,2-dipyridyl as a chemical modifier
Authors
Yun Gao
Yang Ren
Gaoyang Zhao
Publication date
10-03-2017
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 2/2017
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-017-4340-0

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