High temperature eelctrical conductivity in the Cu solubility limit range in ZnS: Cu

摘要

The high temperature electrical conductivity (HTEC) and the solbuility of Cu in Cu-doped ZnS single crystals are investigated in the temperature range from 973 to 1373 K as a function of Zn and S_2 vapour pressure. In equilibrium of ZnS with Cu_2S, the solbuility of Cu is independent of the zinc vapour pressure and decreases by severl orders of magnitude in equilibrium with Cu-Zn alloys. The change in solubility of Cu influences the HTEC isotherms and is expressed as the change of the type of dominating defects.