Probing of Optoelectronic and Transport Properties of Zinc Based ZnY2X4 (X = S, Se) Spinels for Renewable Energy. (5th October 2020)

• Record Type: Journal Article
• Authors: Alshahrani, Thamraa; Mustafa, Ghulam M.; Flemban, Tahani H.; Althib, Hind; Al-Qaisi, Samah; Kattan, Nessrin A.; Mahmood, Q.
• Is Part Of: ECS journal of solid state science and technology. Volume 9:Number 10(2020)
• Publication Date: 2020-10-05
• Subjects: optoelectronic materials -- Thermoelectric -- Solar cells; Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2162-8777/abbb70
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : The spinels chalcogenide are emerging materials for solar cells and other renewable energy applications. we have elaborated the electronic and optical properties of ZnY2 (S/Se)4 by modified Becke and Johnson potential. The computed band gaps 1.66 eV and 1.10 eV correspond to visible region which increase their significance for solar cells. The optical properties are elaborated by dielectric constants, refractive index, and absorption coefficient. Furthermore, the thermoelectric properties are depicted by BoltzTraP code in terms of thermal conductivity to electrical conductivity ratio, Seebeck coefficient and figure of merit. Finally, two important ratios (i.e. Pugh's (B/G > 1.75) and Poisson ( υ > 0.26) described the brittle nature of ZnY2 S4 and ductile nature of ZnY2 Se4 spinels. The large value of Debye and melting temperature is reported for ZnY2 S4 than ZnY2 Se4 .