Optical and structural characterization of (Mn, Fe) co-doped lead chalcogenides for optoelectronics applications

Maleque, Md. Abdul and B, Merabet and Ozkendir, Osman Murat and A. S., Hassanien (2021) Optical and structural characterization of (Mn, Fe) co-doped lead chalcogenides for optoelectronics applications. Journal of Optoelectronics and Advanced Materials, 23 (11-12). pp. 564-573. ISSN 1454-4164 E-ISSN 1841 - 7132

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Abstract

Lead chalcogenides (LCs) exhibit non-stability and lower device efficiency due to smaller bandgap (Eg) leading to poor optical properties for photovoltaic (PV) applications. In this work, optical properties of transition metals (TMs) such as (Mn and Fe) co-doped with LCs especially PbS in the framework of DFT+U (8 eV) and L/APW+lo method are theoretically investigated to predict new optical material for photovoltaic and other optoelectronics applications. The XAFS spectroscopy technique was used to analyze electronic structures and optical properties of (Mn, Fe) co-doped LCs. Midgap states of co-doped PbS reveal to improve the absorption of infrared light mainly due to slight doping with TMs. Compared to pure PbS, Mn doping in PbS induces Eg widening, blue-shift, and improve the light absorption edge. Due to co-doping, the magnetic order is translated that can lead to forming a charge compensated system which is beneficial to minimize vacancies related to defects formation.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Lead chalcogenides, (Mn, Fe) co-doping, Optical property, Light absorption edge
Subjects:	T Technology > T Technology (General) > T10.5 Communication of technical information T Technology > T Technology (General) > T175 Industrial research. Research and development T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1001 Production of electric energy. Powerplants T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK4601 Electric heating
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	26 Nov 2021 08:57
Last Modified:	12 Apr 2022 15:15
URI:	http://irep.iium.edu.my/id/eprint/94104

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