Premium
Hole Effective Masses in CuInSe 2
Author(s) -
Neumann H.,
Kissinger W.,
Sobotta H.,
Riede V.,
Kühn G.
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.2221080224
Subject(s) - valence band , transmittance , photon energy , reflectivity , absorption (acoustics) , dispersion (optics) , valence (chemistry) , photon , range (aeronautics) , effective mass (spring–mass system) , spectral line , atomic physics , materials science , optics , physics , band gap , chemistry , optoelectronics , quantum mechanics , astronomy , composite material
Optical transmittance and reflectance spectra are measured in p‐type CuInSeZ single crystals at 100 and 300 K in the photon energy range from 0.03 to about 1.0 eV. At hv = 0.07 to 0.70 eV the absorption is governed by intervalence band transitions. Assuming spherical parabolic energy dispersion relations for all the three valence bands, the effective masses of the heavy hole, light hole, and split‐off bands are determined to m hh = 0.71 m 0 , m 1h = 0.092 m 0 , and m sh = 0.085 m 0 , respectively.