Structure and physical properties of the boundary surface of crystals in the systems bi321te331-sb321te331, bi321te331-bi321se331 and bi-sb with contact materials

The work is aimed at determination of regularities of forming structural ruptures in crystals of the systems A322V1B332VI1 and Bi-Sb, revealing mechanisms of the effect of these ruptures, intermediate phases and a composition of a contact material on electrical and adhesion properties of the boundary surface "crustal - contact material", establishment of physical bases of the thermoelectrical converter manufacture technology. Regularities of forming structure-ruptured layers on the surface of crystals A322V1B332VI1 and Bi-Sb are first established, the mechanisms of influence of these layers and intermediate phases at the boundary surface of crystals of the mentioned systems with different contact alloys on thermoelectrical properties of the crystals, electrical (including electron work function) and adhesion properties of the boundry surface of the crystals with contact alloys are revealed. Physical bases are established and the technology is developed which introduction increases thermoelectrical efficiency of thermal elements by 20%, reduces contact resistance by 2-3 times, increases the operating temperature up to200 degrees C, prevents deterioration of parameters of thermoelectrical coolers andphotoreceiving devices based thereonAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio