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Size‐Quantized Excitons in Microcrystals of Cuprous Halides Embedded in Alkali‐Halide Matrices
Author(s) -
Itoh T.,
Iwabuchi Y.,
Kirihara T.
Publication year - 1988
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221460215
Subject(s) - exciton , halide , biexciton , alkali metal , excitation , quantization (signal processing) , luminescence , absorption spectroscopy , chemistry , molecular physics , materials science , condensed matter physics , inorganic chemistry , physics , optics , quantum mechanics , optoelectronics , organic chemistry , computer science , computer vision
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 Z 3 exciton translational mass, the Luttinger parameters, and k ‐linear terms for the Z 1,2 excitons are derived in these compounds.