Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films

Abstract Growth of polycrystalline CdMnTe ternary compound thin films has been carried out using cathodic electrodeposition technique at different cathodic potentials. The range of the cathodic potentials used in this work has been chosen according to the cyclic voltammogram results. The CdMnTe thin...

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Autores principales:	A. E. Alam, O. I. Olusola, D. A. L. Loch, K. Shukla, W. M. Cranton, I. M. Dharmadasa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/26fb04f443c84385b5e49abf5c6f6bf9
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spelling	oai:doaj.org-article:26fb04f443c84385b5e49abf5c6f6bf92021-12-02T11:43:36ZElectrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films10.1038/s41598-020-78066-y2045-2322https://doaj.org/article/26fb04f443c84385b5e49abf5c6f6bf92020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78066-yhttps://doaj.org/toc/2045-2322Abstract Growth of polycrystalline CdMnTe ternary compound thin films has been carried out using cathodic electrodeposition technique at different cathodic potentials. The range of the cathodic potentials used in this work has been chosen according to the cyclic voltammogram results. The CdMnTe thin films were electroplated from electrolyte containing CdSO4, TeO2 and MnSO4 in an acidic aqueous medium. Glass/fluorine-doped tin oxide (FTO) substrates have been used to electrodeposit the semiconductor layers. The structural, compositional, morphological, optical and electrical properties of the CdMnTe thin films were studied using X-ray diffraction (XRD), Sputtered neutral-mass spectroscopy (SNMS), Scanning electron microscopy (SEM), UV–Vis spectroscopy and Photo-electro-chemical (PEC) cell measurements respectively. The primarily grown as-deposited (AD) layers went through two different post-growth surface treatment conditions- heat-treated in air in the presence of CdCl2 (CCT) and heat-treated in air in the presence of GaCl3 (GCT). Results from the XRD indicated the polycrystalline nature of the electrodeposited films. The electroplated films have cubic crystal structures and the preferred orientation was found to be along the (111) plane of CdMnTe. Inclusion of Mn has been qualitatively observed using SNMS measurement. The optical energy bandgaps of the thin films were found to be varying between ~ 1.90 and ~ 2.20 eV. Though all the layers after post-treatment showed p-type electrical conduction, both p and n-type conductivity were obtained at different cathodic potentials for as-deposited materials. Comparison of the deposited layers to other electrodeposited ternary compounds has also been discussed.A. E. AlamO. I. OlusolaD. A. L. LochK. ShuklaW. M. CrantonI. M. DharmadasaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q A. E. Alam O. I. Olusola D. A. L. Loch K. Shukla W. M. Cranton I. M. Dharmadasa Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
description	Abstract Growth of polycrystalline CdMnTe ternary compound thin films has been carried out using cathodic electrodeposition technique at different cathodic potentials. The range of the cathodic potentials used in this work has been chosen according to the cyclic voltammogram results. The CdMnTe thin films were electroplated from electrolyte containing CdSO4, TeO2 and MnSO4 in an acidic aqueous medium. Glass/fluorine-doped tin oxide (FTO) substrates have been used to electrodeposit the semiconductor layers. The structural, compositional, morphological, optical and electrical properties of the CdMnTe thin films were studied using X-ray diffraction (XRD), Sputtered neutral-mass spectroscopy (SNMS), Scanning electron microscopy (SEM), UV–Vis spectroscopy and Photo-electro-chemical (PEC) cell measurements respectively. The primarily grown as-deposited (AD) layers went through two different post-growth surface treatment conditions- heat-treated in air in the presence of CdCl2 (CCT) and heat-treated in air in the presence of GaCl3 (GCT). Results from the XRD indicated the polycrystalline nature of the electrodeposited films. The electroplated films have cubic crystal structures and the preferred orientation was found to be along the (111) plane of CdMnTe. Inclusion of Mn has been qualitatively observed using SNMS measurement. The optical energy bandgaps of the thin films were found to be varying between ~ 1.90 and ~ 2.20 eV. Though all the layers after post-treatment showed p-type electrical conduction, both p and n-type conductivity were obtained at different cathodic potentials for as-deposited materials. Comparison of the deposited layers to other electrodeposited ternary compounds has also been discussed.
format	article
author	A. E. Alam O. I. Olusola D. A. L. Loch K. Shukla W. M. Cranton I. M. Dharmadasa
author_facet	A. E. Alam O. I. Olusola D. A. L. Loch K. Shukla W. M. Cranton I. M. Dharmadasa
author_sort	A. E. Alam
title	Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
title_short	Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
title_full	Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
title_fullStr	Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
title_full_unstemmed	Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films
title_sort	electrodeposition of ternary compounds for novel pv application and optimisation of electrodeposited cdmnte thin-films
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/26fb04f443c84385b5e49abf5c6f6bf9
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Electrodeposition of ternary compounds for novel PV application and optimisation of electrodeposited CdMnTe thin-films

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