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http://repository.kln.ac.lk/handle/123456789/4102
Title: | A Correlation between activation energy and light absorption of WO3 incorporated TiO2 |
Authors: | Dharmaratna, W.G.D. Roshan, P.W.C. Siripala, W. Wijesundera, R.P. |
Keywords: | Energy; Variations,Sri Lanka; Variations (Electronics); Absorption |
Issue Date: | 2002 |
Citation: | WGD Dharmaratna, PWC Roshan, W. Siripala and RP Wijesundera, 2002, A correlation between activation energy and light absorption of WO3 incorporated TiO2, Proc. Annual Research Symp. 2002, University of Ruhuna, pp. 50-54 |
Abstract: | The variation of electrical conductivity properties and light absorption properties are studied in W 6+ incorporated Ti02, Both conductivity and light absorption depend on the percentage of W 6+ incorporated into the crystal matrix of Ti02. The activation energy decreased by a maximum of 30% as a result of doping and the lowest activation energy was measured when the dopant concentration was 0.2%. The light reflectance decrease with the dopant percentage, but not in a monotonically decreasing passion. The variation of light reflectance as a function of dopant concentration showed a minimum when the dopant concentration was 0.2%. Both features are quite important in improving the photocatalytic properties of Ti02. |
URI: | http://repository.kln.ac.lk/handle/123456789/4102 |
Appears in Collections: | Physics |
Files in This Item:
File | Description | Size | Format | |
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Annex 32.pdf | 364.25 kB | Adobe PDF | View/Open |
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