EXPONENTIAL ABSORPTION SPECTRUM AND DENSITY DISTRIBUTION OF ELECTRONIC STATES ON THE TAIL OF THE VALENCE ZONE OF AMORPHOUS SEMICONDUCTORS

Muminov Khurshidbek Adhamjon ugli; Otamirzaev Doniyor Rustam ugli; Saloydinov Sardorjon Qodirjon ugli

doi:10.66073/researchfocus.v1i1.1057

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

ЭКСПОНЕНЦИАЛЬНЫЙ СПЕКТР ПОГЛОЩЕНИЯ И РАСПРЕДЕЛЕНИЕ ПЛОТНОСТИ ЭЛЕКТРОННЫХ СОСТОЯНИЙ НА ХВОСТЕ ВАЛЕНТНОЙ ЗОНЫ АМОРФНЫХ ПОЛУПРОВОДНИКОВ | AMORF YARIMO'TKAZGICHLAR VALENT ZONASINING DUMIDA EKSPONENSIAL YUTILISH SPEKTRI VA ELEKTRON HOLATLAR ZICHLIGINING TAQSIMOTI

Muminov Khurshidbek Adhamjon ugli Namangan Institute of Engineering and Technology
Otamirzaev Doniyor Rustam ugli
Saloydinov Sardorjon Qodirjon ugli

Research Focus International Scientific Journal, 1(1), 195–200 · ISSN 2181-3833

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Abstract

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.

Keywords

amorphous semiconductors tails of allowed bands Kubo-Greenwood formula Davies-Mott approximation method electronic optical transitions exponential absorption spectrum energy gap width parameters determining the slope of allowed band tails distribution of the density of electronic states

How to cite

Muminov Khurshidbek Adhamjon ugli; Otamirzaev Doniyor Rustam ugli; Saloydinov Sardorjon Qodirjon ugli (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

Identifier: https://rf-library.uz/article/9a6462868ab1/exponential-absorption-spectrum-and-density-distribution-of-electronic-states
DOI: 10.66073/researchfocus.v1i1.1057
Publisher: LLC Ilm-fan va innovatsiyalar akademiyasi
Added to repository: 2026-08-07