Please use this identifier to cite or link to this item: 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

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