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Efficiency Enhancement of Cu2FeSnS4 Based Thin Film Solar Cell: A Numerical Analysis

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Cu2FeSnS4 (CFTS) is earth abundant semiconductor compound having stannite symmetrical structure. It is an attractive and suitable class of material for the fabrication of low cost, high efficiency and sustainable thin film photovoltaic cell. CFTS based photovoltaic cell device modeling was performed on SCAPS software. In this work we analyze the performance of CFTS/ZnS/Zn(O, S)/FTO thin film stannite solar cell. Zn(O,S) as buffer layer up till now has not been proposed for CFTS based solar cells. In this work impact of device parameters such as acceptor and donor carrier concentration densities of absorber and buffer layers and different layers thicknesses on the functional parameters are analyzed. Promising optimized functional parameters had been achieved with the conversion efficiency of 26.11%, fill factor (FF) 87.90%, short-circuit current (J sc) 29.22 mA/cm2 and open circuit voltage (V oc) 1016.5 mV. The above results will give imperative guidance for the feasible fabrication of high efficiency CFTS based stannite photovoltaic cells.
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Keywords: CFTS; CU2FESNS4; NUMERICAL ANALYSIS; SCAPS; SOLAR CELL; STANNITE; ZN(O,S)

Document Type: Research Article

Publication date: July 1, 2018

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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