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Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance

Cations and anions are replaced with Fe, Mn, and Se in CZTS in order to control the formations of the secondary phase, the band gap, and the micro structure of Cu(2)ZnSnS(4). We demonstrate a simplified synthesis strategy for a range of quaternary chalcogenide nanoparticles such as Cu(2)ZnSnS(4) (CZ...

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Autores principales: Ananthoju, Balakrishna, Mohapatra, Jeotikanta, Jangid, Manoj K., Bahadur, D., Medhekar, N. V., Aslam, M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5066312/
https://www.ncbi.nlm.nih.gov/pubmed/27748406
http://dx.doi.org/10.1038/srep35369
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author Ananthoju, Balakrishna
Mohapatra, Jeotikanta
Jangid, Manoj K.
Bahadur, D.
Medhekar, N. V.
Aslam, M.
author_facet Ananthoju, Balakrishna
Mohapatra, Jeotikanta
Jangid, Manoj K.
Bahadur, D.
Medhekar, N. V.
Aslam, M.
author_sort Ananthoju, Balakrishna
collection PubMed
description Cations and anions are replaced with Fe, Mn, and Se in CZTS in order to control the formations of the secondary phase, the band gap, and the micro structure of Cu(2)ZnSnS(4). We demonstrate a simplified synthesis strategy for a range of quaternary chalcogenide nanoparticles such as Cu(2)ZnSnS(4) (CZTS), Cu(2)FeSnS(4) (CFTS), Cu(2)MnSnS(4) (CMTS), Cu(2)ZnSnSe(4) (CZTSe), and Cu(2)ZnSn(S(0.5)Se(0.5))(4) (CZTSSe) by thermolysis of metal chloride precursors using long chain amine molecules. It is observed that the crystal structure, band gap and micro structure of the CZTS thin films are affected by the substitution of anion/cations. Moreover, secondary phases are not observed and grain sizes are enhanced significantly with selenium doping (grain size ~1 μm). The earth-abundant Cu(2)MSnS(4)/Se(4) (M = Zn, Mn and Fe) nanoparticles have band gaps in the range of 1.04–1.51 eV with high optical-absorption coefficients (~10(4) cm(−1)) in the visible region. The power conversion efficiency of a CZTS solar cell is enhanced significantly, from 0.4% to 7.4% with selenium doping, within an active area of 1.1 ± 0.1 cm(2). The observed changes in the device performance parameters might be ascribed to the variation of optical band gap and microstructure of the thin films. The performance of the device is at par with sputtered fabricated films, at similar scales.
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spelling pubmed-50663122016-10-26 Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance Ananthoju, Balakrishna Mohapatra, Jeotikanta Jangid, Manoj K. Bahadur, D. Medhekar, N. V. Aslam, M. Sci Rep Article Cations and anions are replaced with Fe, Mn, and Se in CZTS in order to control the formations of the secondary phase, the band gap, and the micro structure of Cu(2)ZnSnS(4). We demonstrate a simplified synthesis strategy for a range of quaternary chalcogenide nanoparticles such as Cu(2)ZnSnS(4) (CZTS), Cu(2)FeSnS(4) (CFTS), Cu(2)MnSnS(4) (CMTS), Cu(2)ZnSnSe(4) (CZTSe), and Cu(2)ZnSn(S(0.5)Se(0.5))(4) (CZTSSe) by thermolysis of metal chloride precursors using long chain amine molecules. It is observed that the crystal structure, band gap and micro structure of the CZTS thin films are affected by the substitution of anion/cations. Moreover, secondary phases are not observed and grain sizes are enhanced significantly with selenium doping (grain size ~1 μm). The earth-abundant Cu(2)MSnS(4)/Se(4) (M = Zn, Mn and Fe) nanoparticles have band gaps in the range of 1.04–1.51 eV with high optical-absorption coefficients (~10(4) cm(−1)) in the visible region. The power conversion efficiency of a CZTS solar cell is enhanced significantly, from 0.4% to 7.4% with selenium doping, within an active area of 1.1 ± 0.1 cm(2). The observed changes in the device performance parameters might be ascribed to the variation of optical band gap and microstructure of the thin films. The performance of the device is at par with sputtered fabricated films, at similar scales. Nature Publishing Group 2016-10-17 /pmc/articles/PMC5066312/ /pubmed/27748406 http://dx.doi.org/10.1038/srep35369 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Ananthoju, Balakrishna
Mohapatra, Jeotikanta
Jangid, Manoj K.
Bahadur, D.
Medhekar, N. V.
Aslam, M.
Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title_full Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title_fullStr Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title_full_unstemmed Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title_short Cation/Anion Substitution in Cu(2)ZnSnS(4) for Improved Photovoltaic Performance
title_sort cation/anion substitution in cu(2)znsns(4) for improved photovoltaic performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5066312/
https://www.ncbi.nlm.nih.gov/pubmed/27748406
http://dx.doi.org/10.1038/srep35369
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