Study of Optoelectronic and Thermoelectric Characteristics of Cesium Based Halides CsYbX3 (X = Br, Cl) for Clean Energy Harvesting. (13th January 2021)

• Record Type: Journal Article
• Authors: Shahzad, Ali; Ahmadini, Abdullah Ali H.; Mahmood, Q.; Flemban, Tahani H.; Murtaza, G.; Kattan, Nessrin A.; Iqbal, M. Waqas.; Ghrib, T.; Laref, A.
• Is Part Of: ECS journal of solid state science and technology. Volume 10:Number 1(2021)
• Publication Date: 2021-01-13
• Subjects: Solid state chemistry -- Periodicals; Electronics -- Materials -- Periodicals; Electrochemistry -- Periodicals; 541.0421
• DOI: 10.1149/2162-8777/abd880
• Languages: English
• ISSNs: 2162-8777

Abstract

Abstract : The optoelectronic and transport characteristics of CsYbX3 (X = Br, Cl) are computed for clean energy harvesting. The structural stability has been anticipated by Goldsmith tolerance factor and thermodynamic stability by formation energy. The band gaps 1.66 eV and 1.44 eV for CsYbCl3 and CsYbBr3 are observed in visible energy region, which show their significance for optoelectronic and solar cells. The dielectric constant reveals the polarization of light while absorption coefficient and imaginary dielectric constant ensure maximum absorption in the visible region. Refractive index appears in the range of 1 to 2 and minimum reflectivity also builds their significance for optical applications. The transport properties are elucidated by electrical and thermal conductivities, Seebeck coefficient and figure of merit (ZT). The high value of ZT makes them equally important for thermoelectric devices.