Volume 10, Issue 3 (Iranian Journal of Physics Research, Fall 2010)                   IJPR 2010, 10(3): 187-196 | Back to browse issues page

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Dadsetani M, Beiranvand R. The effect of oxygen impurity on the electronic and optical properties of calcium, strontium and barium chalcogenide compounds. IJPR. 2010; 10 (3) :187-196
URL: http://ijpr.iut.ac.ir/article-1-525-en.html
University of Lorestan , dadsetani.m@lu.ac.ir
Abstract:   (16126 Views)
Electronic and optical properties of calcium, strontium and barium chalcogenide compounds in NaCl structure are studied using the band structure results obtained through the full potential linearized augmented palne wave method. Different linear relationships are observed between theoretical band gap and 1/a2 (where a is lattice constant) for calcium, strontium and barium chalcogenide compounds with and without oxygen, respectively. An abnormal behavior of electronic and optical properties are found for compounds containing oxygen. These effects are ascribed to the special properties of Ca-O, Sr-O and Ba-O bonds, which are different from chemical bonds between Ca, Sr and Ba and other chalcogen atoms.
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Type of Study: Research | Subject: General

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