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Electronic band structure of pseudodirect chalcopyrite semiconductors: II. ZnGeP 2 and ZnSiAs 2
Author(s) -
Heinrich A.,
Cordts W.,
Monecke J.
Publication year - 1981
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.2221070133
Subject(s) - tetragonal crystal system , chalcopyrite , pseudopotential , semiconductor , antisymmetric relation , band gap , materials science , electronic band structure , condensed matter physics , crystallography , crystal structure , chemistry , physics , optoelectronics , copper , metallurgy , mathematical physics
The band structures of the chalcopyrite semiconductors ZnGeP 2 and ZnSiA 2 are calculated using the empirical pseudopotential method as applied successfully already to ZnSiP 2 and CdSiP 2 . The band structures are in good agreement with experimental data. The influences of all three tetragonal parts of the crystal potentials (antisymmetric cation potentials, tetragonal compressions, and distortions of the anion sublattices) on the band structures and on optical transition energies are investigated in detail.