Comprehensive Review on CdTe Crystals: Growth, Properties, and Photovoltaic Application

John, Bibin and Varadharajaperumal, S (2024) Comprehensive Review on CdTe Crystals: Growth, Properties, and Photovoltaic Application. In: Physics of Metals and Metallography .

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Abstract

Abstract: Despite the deep interest of materials scientists in cadmium telluride (CdTe) crystal growth, there is no single source to which the researchers can turn towards for comprehensive knowledge of CdTe compound semiconductor synthesis protocols, physical properties and performance. Considering this, the present review work focuses to bridge this shortcoming. The direct band gap (E g) CdTe crystals have been in limelight in photovoltaic application (PV) since the optoelectronic properties such as E g (1.49 eV), absorption coefficient (~105 cm�1), p-type conductivity, carrier concentration (6 � 1016 cm�3) and mobility (1040 cm2/(V s)) at the room temperature are reported that optimum for solar cells. Additionally, Cd-based compounds such as CdTe and CdZnTe have also been widely studied in the field of α and γ-ray radiation detector, because of their extraordinary advantages like large atomic number, low weight, high mechanical hardness, flexibility, and the availability of the constituent materials. CdTe has demerits like toxicity and high melting temperature, which will complicate the growth of stoichiometric cadmium telluride crystals at high temperatures. In this regard, the review work focused the periodic evolution of the growth protocols until now. The different synthesis methods, characterization, and recent progress in the field of crystalline CdTe were discussed briefly. Important optical and electrical characteristics are presented in the tables and remaining issues have discussed, this could be looked into for further research. The applications of CdTe crystals for photovoltaic fields are also discussed in this review paper. © 2023, Pleiades Publishing, Ltd.

Item Type:	Journal Article
Publication:	Physics of Metals and Metallography
Publisher:	Pleiades Publishing
Additional Information:	The copyright for this article belongs to Pleiades Publishing.
Keywords:	Atoms; Carrier concentration; Carrier mobility; Energy gap; Gamma rays; II-VI semiconductors; Lime; Semiconductor alloys; Solar cells; Solar power generation, Cadmium telluride; Dislocations densities; Growth properties; Horizontal traveling heater method; Material scientists; Photovoltaic applications; Single source; Sublimation methods; Traveling heater method, Cadmium telluride
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	03 Mar 2024 10:38
Last Modified:	03 Mar 2024 10:38
URI:	https://eprints.iisc.ac.in/id/eprint/84180

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