Enhancing the Performance of an Sb2Se3-Based Solar Cell by Dual Buffer Layer

In an Sb2Se3-based solar cell, the buffer layer is sandwiched between the absorber and the window layer, playing an essential role in interfacial electricity. Generally, CdS is used as a buffer layer, but its toxic nature and low bandgap can cause curren...

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Autores principales:	Mamta, Kamlesh Kumar Maurya, Vidya Nand Singh
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Sb<sub>2</sub>Se<sub>3</sub> CdS ZnS buffer layer SCAPS 1D Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ff3eb6e7bf264ff08f0b641b00d4edbf
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id	oai:doaj.org-article:ff3eb6e7bf264ff08f0b641b00d4edbf
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spelling	oai:doaj.org-article:ff3eb6e7bf264ff08f0b641b00d4edbf2021-11-11T19:51:34ZEnhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer10.3390/su1321123202071-1050https://doaj.org/article/ff3eb6e7bf264ff08f0b641b00d4edbf2021-11-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/12320https://doaj.org/toc/2071-1050In an Sb<sub>2</sub>Se<sub>3</sub>-based solar cell, the buffer layer is sandwiched between the absorber and the window layer, playing an essential role in interfacial electricity. Generally, CdS is used as a buffer layer, but its toxic nature and low bandgap can cause current loss because of parasitic absorption. In this work, we optimized the buffer layer by using ZnS as an alternative to the CdS buffer layer in order to decrease the use of CdS. The effect of different buffer layers on the solar device was explored by numerical simulation with the help of SCAPS 1D software. The basic parameters, such as open-circuit voltage (Voc), current density (Jsc), fill factor (FF), and efficiency (η) were analyzed and compared for both the buffer layers (CdS/ZnS). The results demonstrate that changing buffer materials and thicknesses has a significant impact on cell performance. The efficiency for the ZnS buffer layer was lower compared to that of the CdS-based solar cells because of insufficient energy band alignment. In order to enhance the efficiency of Sb<sub>2</sub>Se<sub>3</sub>-based solar cells, we used CdS/ZnS dual buffer layers and studied the device performance. The work function of the back contact also affects the device performance, and for work functions below 4.8 eV, the device’s efficiency was very low. The effect of varying the thicknesses and temperatures of the buffer layers on the I-V/C-V characteristics, quantum efficiency, and energy band structure are also reported. This study shall guide the researcher in reducing CdS and improving the device’s performance.MamtaKamlesh Kumar MauryaVidya Nand SinghMDPI AGarticleSb<sub>2</sub>Se<sub>3</sub>CdSZnSbuffer layerSCAPS 1DEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 12320, p 12320 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Sb<sub>2</sub>Se<sub>3</sub> CdS ZnS buffer layer SCAPS 1D Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350
spellingShingle	Sb<sub>2</sub>Se<sub>3</sub> CdS ZnS buffer layer SCAPS 1D Environmental effects of industries and plants TD194-195 Renewable energy sources TJ807-830 Environmental sciences GE1-350 Mamta Kamlesh Kumar Maurya Vidya Nand Singh Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
description	In an Sb<sub>2</sub>Se<sub>3</sub>-based solar cell, the buffer layer is sandwiched between the absorber and the window layer, playing an essential role in interfacial electricity. Generally, CdS is used as a buffer layer, but its toxic nature and low bandgap can cause current loss because of parasitic absorption. In this work, we optimized the buffer layer by using ZnS as an alternative to the CdS buffer layer in order to decrease the use of CdS. The effect of different buffer layers on the solar device was explored by numerical simulation with the help of SCAPS 1D software. The basic parameters, such as open-circuit voltage (Voc), current density (Jsc), fill factor (FF), and efficiency (η) were analyzed and compared for both the buffer layers (CdS/ZnS). The results demonstrate that changing buffer materials and thicknesses has a significant impact on cell performance. The efficiency for the ZnS buffer layer was lower compared to that of the CdS-based solar cells because of insufficient energy band alignment. In order to enhance the efficiency of Sb<sub>2</sub>Se<sub>3</sub>-based solar cells, we used CdS/ZnS dual buffer layers and studied the device performance. The work function of the back contact also affects the device performance, and for work functions below 4.8 eV, the device’s efficiency was very low. The effect of varying the thicknesses and temperatures of the buffer layers on the I-V/C-V characteristics, quantum efficiency, and energy band structure are also reported. This study shall guide the researcher in reducing CdS and improving the device’s performance.
format	article
author	Mamta Kamlesh Kumar Maurya Vidya Nand Singh
author_facet	Mamta Kamlesh Kumar Maurya Vidya Nand Singh
author_sort	Mamta
title	Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
title_short	Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
title_full	Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
title_fullStr	Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
title_full_unstemmed	Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer
title_sort	enhancing the performance of an sb<sub>2</sub>se<sub>3</sub>-based solar cell by dual buffer layer
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/ff3eb6e7bf264ff08f0b641b00d4edbf
work_keys_str_mv	AT mamta enhancingtheperformanceofansbsub2subsesub3subbasedsolarcellbydualbufferlayer AT kamleshkumarmaurya enhancingtheperformanceofansbsub2subsesub3subbasedsolarcellbydualbufferlayer AT vidyanandsingh enhancingtheperformanceofansbsub2subsesub3subbasedsolarcellbydualbufferlayer
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Enhancing the Performance of an Sb<sub>2</sub>Se<sub>3</sub>-Based Solar Cell by Dual Buffer Layer

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