Cu-poor chalcostibite CuSbS2 thin films for inverted photovoltaic applications

Chinnaiyah, S and Alagarasan, D and Ganesan, R and Babu, RR (2023) Cu-poor chalcostibite CuSbS2 thin films for inverted photovoltaic applications. In: Applied Physics A: Materials Science and Processing, 129 (4).

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Abstract

In the present work, thermally evaporated Cu-poor CuSbS2 (Copper antimony disulphide—CAS) thin films are prepared with the precursor of Cu-poor CuSbS2 alloys. X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy, and UV–Visible spectroscopy have been used to characterise the prepared films to determine their potentiality as absorber layer materials for photovoltaic applications. By replacing the standard window layer of i-ZnO (intrinsic-zinc oxide) with one-dimensional (1D) n-type TiO2 (titanium dioxide) and an active layer of stoichiometry-adjusted CAS, we investigated the effect of architecture on photovoltaic (PV) performance. Solar cells with Cu-poor and stoichiometric-adjusted CAS absorbers have a Voc of 189 mV and a Jsc of 0.737 mA/cm2. The designed solar cell device with the structure FTO/TiO2/CdS/CAS/Al has a power conversion efficiency (PCE) of > 1%.

Item Type:	Journal Article
Publication:	Applied Physics A: Materials Science and Processing
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH.
Keywords:	Antimony compounds; Conversion efficiency; Copper alloys; Copper compounds; Field emission microscopes; Film preparation; II-VI semiconductors; Photovoltaic effects; Scanning electron microscopy; Solar power generation; Sulfur compounds; Thin films; Titanium dioxide; X ray photoelectron spectroscopy; Zinc oxide, Chalcostibite; Cu-poor; Field emission scanning electron microscopy; Inverted photovoltaic; Inverted solar cells; Photo-conversion efficiency; Photovoltaic applications; Thin-films; UV-visible spectroscopy; X- ray diffractions, Nanorods
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Apr 2023 10:04
Last Modified:	03 Apr 2023 10:04
URI:	https://eprints.iisc.ac.in/id/eprint/81152

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