玻璃中CuClxBr1-x(x=0—1)胶体的激子光谱

一个物质未必具有大晶体一样的周期结构,但只要形成了似晶体的集团,也可以显示出晶体一样的基本光吸收。本工作研究了含CuCl_xBr_1-x(x=0—1)胶体的玻璃制备和光吸收性质。实验结果表明玻璃中达到一定大小的CuCl,CuCl_xBr_1-x和CuBr胶体粒子也可显示出与相应大块晶体相同的激子吸收光谱,玻璃具有和相应晶体相同的紫外吸收限。 关键词：

EXCITON SPECTRUM OF COLLOIDAL CuClxBr1-x(x=0-1) IN GLASSES

Clusters, which do must not have the same periodic structure as the corresponding large crystal, can also show an optical absorption similar to the crystal. In the present article, we report the results about the preparation and optical absorption properties of glasses containing CuCl_xBr_1-x(x=0—1) colloids. Experimental results indicate that colloidal CuCl, CuCl_xBr_1-x and CuBr in glasses with definite size can also show exciton absorption peaks similar to the corresponding large crystals, and that glasses have the same violet absorption edges as the crystals.