Defects in TlGaSe sub 2

Defects in TlGaSe sub 2 single crystals have been studied for the first time by the methods of X-ray microanalysis and transmision electron microscopy. A disturbance in the stoichiometry has been established in TlGaSe sub 2 . The thallium and gallium deficiencies amount to 1.54 and 1.12 at.%, respec...

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Bibliographic Details
Published in:Materials chemistry and physics 1985-12, Vol.13 (6), p.541-550
Main Authors: Guseinov, G D, Aliyev, V A, Bagirzade, E F
Format: Article
Language:English
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Summary:Defects in TlGaSe sub 2 single crystals have been studied for the first time by the methods of X-ray microanalysis and transmision electron microscopy. A disturbance in the stoichiometry has been established in TlGaSe sub 2 . The thallium and gallium deficiencies amount to 1.54 and 1.12 at.%, respectively, and the selenium excess is 2.7 at.%. An excessive concentration of cation vacancies leads to a helical twisting of dislocations. The dislocation density is 400 to 600 mm exp --2 . 21 ref.--AA
ISSN:0254-0584