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本工作的目的是寻找制备ZnS型场致发光材料的条件。基于Cu在ZnS中的溶解度是被Cl或其他协同激活剂所控制,即Cl促进Cu进人ZnS晶格,过量的Cu和H_2S气的存在造成Cu_2S表面相的形成,Zalm首先利用H_2S—HCl气制备场致发光材料。继之Казанкин等认为H_2S—HCl气体对于可看作半导体的ZnS表面存在强烈的作用,也采用了H_2S—HCl气流制得了ZnS—Cu和ZnS—Cu,Al场致发光材料。此后不久,Wendel认为HCl与ZnS作用造成了锌空位,除了表面相外,替代式的铜和间隙铜的缔合也是造成场致发光的原因,他把H_2S—HCl气流用于两步灼烧的方法中,获得了性能相当好的场致发光材料。
The purpose of this work is to find the conditions for the preparation of ZnS-type electroluminescent material. The solubility of Cu in ZnS is controlled by Cl or other synergistic activators, that is, Cl promotes the entry of Cu into the ZnS lattice. The presence of excess Cu and H 2 S gas results in the formation of the Cu 2 S surface phase. Zalm first uses H 2 S-HCl gas Electroluminescent materials were prepared. Following Казанкин so that H_2S-HCl gas for the semiconductor can be considered on the surface of ZnS there is a strong role, but also the use of H_2S-HCl gas flow obtained ZnS-Cu and ZnS-Cu, Al electroluminescent material. Shortly thereafter, Wendel concluded that the interaction of HCl and ZnS caused zinc vacancies. In addition to the surface phase, the association of alternative copper and interstitial copper was responsible for the electroluminescence. He used H 2 S-HCl gas stream for two-step firing Method, obtained quite good performance electroluminescent material.