BAND-STRUCTURE OF MG1-XZNXSYSE1-Y

Authors
TEO KL FENG YP LI MF CHONG TC XIA JB
Citation
Kl. Teo et al., BAND-STRUCTURE OF MG1-XZNXSYSE1-Y, Semiconductor science and technology, 9(4), 1994, pp. 349-355
Citations number
34
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Condensed Matter","Material Science
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
9
Issue
4
Year of publication
1994
Pages
349 - 355
Database
ISI
SICI code
0268-1242(1994)9:4<349:BOM>2.0.ZU;2-C
Abstract
The empirical pseudopotential method within the virtual crystal approx imation is used to calculate the band structure of Mg1-xZnySySe1-y, wh ich has recently been proved to be a potential semiconductor material for optoelectronic device applications in the blue spectral region. It is shown that MgZnSSe can be a direct or an indirect semiconductor de pending on the alloy composition. Electron and hole effective masses a re calculated for different compositions. Polynomial approximations ar e obtained for both the energy gap and the effective mass as functions of alloy composition at the GAMMA valley. This information will be us eful for the future design of blue wavelength optoelectronic devices a s well as for assessment of their properties.