Negative Photoconductivity Effects of Titanium Dioxide and Tungsten Oxide Prepared by Sol-Gel Method
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Abstract
Titanium oxide and tungsten oxide are prepared by sol-gel method. Intensity dependence of photocurrent was studied at different
voltages under visible illumination which indicates that the nanoparticles exhibit negative photoconductive behavior. The variation of photocurrent with visible illumination was found to be sub linear in nature at low as well as high voltages. Voltage dependence was also studied. Structural studies using XRD and TEM have been performed. Particle size of TiO2 and WO3 nanoparticles are found to be ~35 nm and 40-50 nm respectively
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Smriti Srivastava and Rajneesh K. Srivastava, Shivangi Trivedi and Mridula Tripathi. Negative Photoconductivity Effects of Titanium Dioxide and Tungsten Oxide Prepared by Sol-Gel Method. J. Int. Acad. Phys. Sci. [Internet]. 2010 Jun. 15 [cited 2024 Apr. 30];14(2):265-71. Available from: https://www.iaps.org.in/journal/index.php/journaliaps/article/view/339
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