Size‐Quantized Excitons in Microcrystals of Cuprous Halides Embedded in Alkali‐Halide Matrices

作者：Takeshi ITOH, Yasuo Iwabuchi, Toshio Kirihara · 发表于：physica status solidi (b) · 年份：1988 · DOI：10.1002/pssb.2221460215 · 被引用次数：122 · 研究领域：Quantum Dots Synthesis And Properties、Nanocluster Synthesis and Applications、Chalcogenide Semiconductor Thin Films

Abstract Exciton luminescence spectra in CuCl, CuBr, and CuI microcrystals of a few nm in size which are embedded in alkali‐halide matrices are studied under selective excitation at the exciton absorption bands inhomogeneously broadened by the size distribution. The size‐quantized exciton states are found to split into various components. From the analysis of the splitting on the basis of the size‐quantization of the exciton translational motion in the microcrystals of thin platelets, the Z3 exciton translational mass, the Luttinger parameters, and k‐linear terms for the Z1,2 excitons are derived in these compounds.