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Photovoltaic properties of ordered mesoporous silica thin film electrodes encapsulating titanium dioxide particles

Paper ID Volume ID Publish Year Pages File Format Full-Text
28530 44080 2006 8 PDF Available
Title
Photovoltaic properties of ordered mesoporous silica thin film electrodes encapsulating titanium dioxide particles
Abstract

SBA-15 mesoporous silica thin films encapsulating Degussa P-25 TiO2 particles were synthesized using a block copolymer templating method. The films were dip-coated onto ITO conducting glass substrates to allow for photovoltaic analysis. Structural characterization of the films was performed using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrodes were placed in photovoltaic cells and irradiated with long wavelength UV (∼365 nm) radiation. Photovoltaic efficiencies were determined to be in the range 8.0 × 10−4 to 0.26%. An increase in efficiency of approximately 44% was found for mesoporous silica samples encapsulating TiO2 particles over non-porous silica films containing TiO2.

Keywords
Titanium dioxide; Mesoporous silica films; Photovoltaics; Photoelectrochemical cell; Photovoltaic efficiency
First Page Preview
Photovoltaic properties of ordered mesoporous silica thin film electrodes encapsulating titanium dioxide particles
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 181, Issues 2–3, 31 July 2006, Pages 166–173
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering