PARAMETERS DEFINING THE INTERZONAL ABSORPTION COEFFICIENT IN AMORPHOUS SEMICONDUCTORS

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RUSTAM GULOMJONOVICH IKRAMOV
MASHXURA ANVARBEKOVNA NURIDDINOVA
KHURSHID ADHAMJON UGLI MUMINOV

Abstract

The theoretically derived formulas for the interband absorption spectra in amorphous semiconductors are analyzed. It is shown that the proportionality coefficient and the energy width of the mobility gap of these spectra can be found using experimentally determined interband absorption spectra. It was determined that with a decrease in the amount of selenium in an amorphous selenium-sulfur compound, the energy width of the mobility gap increases.

Keywords:
Amorphous semiconductors, interband absorption spectrum, Kubo-greenwood formula, Davis-mott approximation method, types of optical transitions of electrons, energy width of the mobility gap.

Article Details

How to Cite
IKRAMOV, R. G., NURIDDINOVA, M. A., & MUMINOV, K. A. U. (2021). PARAMETERS DEFINING THE INTERZONAL ABSORPTION COEFFICIENT IN AMORPHOUS SEMICONDUCTORS. Journal of Applied Physical Science International, 12(1), 36-40. Retrieved from https://www.ikprress.org/index.php/JAPSI/article/view/5929
Section
Original Research Article

References

Taus J. The optical properties of solid (ed F. Abeles). North-Holland, Amsterdam; 1971.

Zainobidinov S, Ikramov RG, Zhalalov RM, Nuritdinova MA. Distribution of electron density of states in allowed bands and interband absorption in amorphous semiconductors. Optics and Spectroscopy. 2011;110:762–766.
DOI:10.1134/s0030400x11030271.

Fistul VI. Vvedeniya v fiziku poluprovodnikov. Моskva, Visshaya shkola; 1984.

Ikramov R. Distribution function of electronic states of dangling bonds in amorphous semiconductors. Natural and Technical Sciences. 2007;6:58-63.
[ISSN: 1684- 2626].

Zaynobidinov S, Ikramov RG, Jalalov RM. Urbach energy and the tails of the density of states in amorphous semiconductors. Journal of Applied Spectroscopy. 2011; 78:223–227.
DOI:10.1007/s10812-011-9450.

Davis EA, Mott NF. Electronic processes in non crystalline materials. Clarendon Press, Oxford; 1979.

Аndrev АА, Shlimak МS. V kn. Fotopremniki i fotopreobrazovateli. Sbornik nauchnix trudov АN SSSR FТI im. Ioffe, Leningrad, Nauka; 1986.

Djalilov NZ, Damirov GМ. Pogloshenie i spektri opticheskix parametrov v amorfnix tverdix rastvorax sistemi Se-S. Fizika i Texnika Poluprovodnikov. 2011;45(4):500- 505.

Nadjafov BA. Opticheskie svoystva tonkix plenok a-Si1-xGex:H (x=0-1). International Journal of Applied and Fundamental Research. 2017;1:20-26.

Jarmila M, Pavol S. One some ambiguities of the absorption edge and optical band gaps of amorphous and polycrystalline semiconductors. Communications. 2017; 19(3):9-15.