Physicochemical processes at the boundary between some semiconducting solid solutions and contact alloys

Some adhesion and electric properties of boundaries between Bi 2 Te 3 -Sb 2 Te 3 -Gd 2 Te 3 solid solution crystals and Bi-Pb-Sn and Bi-Sn alloys and the formation of various intermediate phases in these systems were studied. When the alloys are applied to crystal end faces, crystals are dissolved i...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2009-12, Vol.83 (12), p.2133-2135
Main Authors: Alieva, T. D., Abdinova, G. Dzh, Akhundova, N. M., Ismaiylova, R. A., Abdinov, D. Sh
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Physical Chemistry
Physical Chemistry of Surface Phenomena
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Summary:Some adhesion and electric properties of boundaries between Bi 2 Te 3 -Sb 2 Te 3 -Gd 2 Te 3 solid solution crystals and Bi-Pb-Sn and Bi-Sn alloys and the formation of various intermediate phases in these systems were studied. When the alloys are applied to crystal end faces, crystals are dissolved in contact material melt and contact material components diffuse into crystals. This is accompanied by the formation of intermediate phases such as PbTe and SbTe at the boundary. The 57 wt % Bi + 43 wt % Sn alloy was found to form contacts with the systems studied with fairly low contact resistances and wetting angles and high work of adhesion and adhesion strength.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024409120231