Paper Title:

Effect of the Residual Template on Surface Photoelectric Characteristics of Structurally-Ordered Macroporous Nanocrystalline TiO2

Periodical Materials Science Forum (Volume 685)
Main Theme Energy, Environment and Biological Materials
Edited by Kunyuan Gao, Shaoxiong Zhou, Xinqing Zhao
Pages 20-25
DOI 10.4028/www.scientific.net/MSF.685.20
Citation Sai Ling Wei et al., 2011, Materials Science Forum, 685, 20
Online since June 2011
Authors Sai Ling Wei, Kui Ying Li, Wei Yong Yang, Chun Mei Wang, Jian Zhang
Keywords Macroporous, Nanocrystalline TiO2 Thin Film, PA, PS Template, Residual Template, SPV
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The Macroporous Nanocrystalline TiO2 Thin Film Was Prepared by Dipping-Coating Method. Polystyrene (PS) Microspheres Template Was Used as Pore-Forming Assistant and TiO2 Sol Was Used as Precursor. the Photoelectric Characteristics of the Samples Were Studied Using Surface Photovoltage (SPV) and Photoacoustic (PA) Techniques. the Presence of a Small Amount of Residual Template Damages the Integrity of the Porous TiO2 Film with Inverse Opal Structure, and TiO2 May Be Restricted in Certain Application Fields as Photonic Crystals. a Small Amount of Residual Template Changes the Surface Photovoltaic Properties of the Porous TiO2 Film, Resulting Mainly in the Broadened Scope and the Increased Intensity of SPV Response.