玻璃中CuCl微晶的尺寸量子化激子

通过对尺寸分布非均匀加宽的激子吸收带选择激发的方法,研究了玻璃中几个nm量级的CuCl微晶的激子发光光谱.发现尺寸量子化的激子态劈裂形成多个分量.通过对尺寸量子化所产生的球形微晶中激光跃迁能级劈裂的分析,得到CuCl的z_(1.2)激子跃迁质量,Luttinger参数以及x线性项系数等数据.

Size-quantized exciton in microcrystals of CuCl embedded in glass

Exoiton luminescence spectra in CuCl mioroorystals of a few nm in size embedded in glass are studied under selective excitation at the exoiton absorption bands homogeneously broadened by the size dietribution. The size-quantized exciton states are found to split into various components. From the analysis of the splitting on the basis of size-quantization of the exoiton transitional levels in the mioroorystals spheres, the z1,2 exoiton transitional mass, Luttinger parameters, and K-linear terms for z1,2 exoiton are derived in these compounds.