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Title: | Photoelectrical properties and the electronic structure of Tl 1-xIn1-xSnxSe2 (x = 0, 0.1, 0.2, 0.25) single crystalline alloys |
Authors: | Davydyuk, G. E. Khyzhun, Oleg Yu Ali Hussain, Reshak, Prof. Dr. Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. Myronchuk, G.L. Danylchuk, S.P. Fedorchuk, Anatolii O. Piskach, L.V. Mozolyuk, M.Yu. Parasyuk, O.V. maalidph@yahoo.co.uk vc@unimap.edu.my |
Keywords: | Photoelectrical properties Crystalline alloys Electronic structure |
Issue Date: | 14-May-2013 |
Publisher: | Royal Society of Chemistry |
Citation: | Physical Chemistry Chemical Physics, vol. 15(18), 2013, pages 6965-6972 |
Abstract: | Photoelectrical properties of Tl1-xIn1-xSn xSe2 single crystalline alloys (x = 0, 0.1, 0.2, 0.25) grown using the Bridgman-Stockbarger method were studied. The temperature dependence of electrical and photoconductivity for the Tl1-xIn 1-xSnxSe2 single crystals was explored. It has been established that photosensitivity of the Tl1-xIn 1-xSnxSe2 single crystals increases with x. The spectral distribution of photocurrent in the wavelength spectral range 400-1000 nm has been investigated at various temperatures. Photoconductivity increases in all the studied crystals with temperature. Therefore, thermal activation of photoconductivity is caused by re-charging of the photoactive centers as the samples are heated. Based on our investigations, a model of center re-charging is proposed that explains the observed phenomena. X-ray photoelectron valence-band spectra for pristine and Ar+-ion irradiated surfaces of the Tl1-xIn1-xSnxSe2 single crystals have been measured. These results reveal that the Tl1-xIn 1-xSnxSe2 single-crystal surface is sensitive to the Ar+ ion irradiation that induced structural modification in the top surface layers. Comparison on a common energy scale of the X-ray emission Se Kβ2 bands representing energy distribution of the Se 4p-like states and the X-ray photoelectron valence-band spectra was done |
Description: | Link to publisher's homepage at http://www.rsc.org/ |
URI: | http://pubs.rsc.org/en/Content/ArticleLanding/2013/CP/c3cp50836f#!divAbstract http://dspace.unimap.edu.my:80/dspace/handle/123456789/32936 |
ISSN: | 1463-9076 |
Appears in Collections: | School of Materials Engineering (Articles) Kamarudin Hussin, Brig. Jen. Datuk Prof. Dr. |
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File | Description | Size | Format | |
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Photoelectrical properties and the electronic structure of Tl 1-xIn1-xSnxSe2 (x = 0, 0.1, 0.2, 0.25) single crystalline alloys.pdf | 2.06 MB | Adobe PDF | View/Open |
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