ARTICLE
2022 Vol 1 · No 1
EN 9a6462868ab1
EXPONENTIAL ABSORPTION SPECTRUM AND DENSITY DISTRIBUTION OF ELECTRONIC STATES ON THE TAIL OF THE VALENCE ZONE OF AMORPHOUS SEMICONDUCTORS
Research Focus International Scientific Journal, 1(1), 195–200 · ISSN 2181-3833
Annotatsiya
The analytical expression of the spectrum, derived for the region of exponential absorption of amorphous semiconductors, is investigated. The parameters in this expression that determine the slope of the tails of the allowed bands are determined by fitting to the exponential absorption spectrum, which are determined experimentally. For the Davis-Mott approximation, a new formula is derived from the Kubo-Greenwood formula, which determines the densities of electronic states at the tail of the valence band. Using these formulas and the experimentally determined exponential absorption spectrum, it is shown that it is possible to determine the density of electronic states at the tail of the valence band.
Kalit so‘zlar
amorphous semiconductorstails of allowed bandsKubo-Greenwood formulaDavies-Mott approximation methodelectronic optical transitionsexponential absorption spectrumenergy gap widthparameters determining the slope of allowed band tailsdistribution of the density of electronic states.
Iqtibos keltirish
ugli, Muminov Khurshidbek Adhamjon; ugli, Otamirzaev Doniyor Rustam; ugli, Saloydinov Sardorjon Qodirjon (2022). EXPONENTIAL ABSORPTION SPECTRUM AND DENSITY DISTRIBUTION OF ELECTRONIC STATES ON THE TAIL OF THE VALENCE ZONE OF AMORPHOUS SEMICONDUCTORS. Research Focus International Scientific Journal, 1(1), 195–200. https://doi.org/10.66073/researchfocus.v1i1.1057