PARAMETERS DEFINING THE INTERZONAL ABSORPTION COEFFICIENT IN AMORPHOUS SEMICONDUCTORS
RUSTAM GULOMJONOVICH IKRAMOV *
Namangan Institute and Engineering and Technology, Namangan, Uzbekistan.
MASHXURA ANVARBEKOVNA NURIDDINOVA
Namangan Institute and Engineering and Technology, Namangan, Uzbekistan.
KHURSHID ADHAMJON UGLI MUMINOV
Namangan Institute and Engineering and Technology, Namangan, Uzbekistan.
*Author to whom correspondence should be addressed.
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.