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The synthesis of CdZnTe semiconductor thin films for tandem solar cells

A new approach is adopted to grow cadmium zinc telluride (CdZnTe) thin films using the close spaced sublimation (CSS) technique. The deposition parameters for the growth of cadmium telluride (CdTe) thin films onto the glass substrate were optimized. A zinc telluride (ZnTe) thin film layer was deposi...

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Autores principales: Shah, Nazar Abbas, Mahmood, Waqar, Abbas, Murrawat, Nazar, Nadeem, Khosa, Ashfaq H., Zeb, Aurang, Malik, Abdul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9044518/
https://www.ncbi.nlm.nih.gov/pubmed/35494116
http://dx.doi.org/10.1039/d1ra07755d
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author Shah, Nazar Abbas
Mahmood, Waqar
Abbas, Murrawat
Nazar, Nadeem
Khosa, Ashfaq H.
Zeb, Aurang
Malik, Abdul
author_facet Shah, Nazar Abbas
Mahmood, Waqar
Abbas, Murrawat
Nazar, Nadeem
Khosa, Ashfaq H.
Zeb, Aurang
Malik, Abdul
author_sort Shah, Nazar Abbas
collection PubMed
description A new approach is adopted to grow cadmium zinc telluride (CdZnTe) thin films using the close spaced sublimation (CSS) technique. The deposition parameters for the growth of cadmium telluride (CdTe) thin films onto the glass substrate were optimized. A zinc telluride (ZnTe) thin film layer was deposited onto already-deposited CdTe thin film to fabricate the CdZnTe (CZT) thin film sample as a ternary compound. Annealing was done after the successful deposition of CZT thin films before further characterization of the CZT thin film samples. The structures of the CZT thin film samples were studied using X-ray diffraction (XRD) and cubic phases were found. A spectrophotometer was used to study the optical parameters, and the energy band gap was found to be in the range of 1.45 eV to 1.75 eV after annealing. The nature of the direct band gap predicts that it might be an ideal component in second-generation solar cells. A Hall measurement system was used to find that the electrical conductivity was in the range of 4.6 × 10(−6) to 8.2 × 10(−11) (ohm cm)(−1). XPS analysis confirmed the presence of Zn in the CdTe thin films. A significant change in electronic properties was observed. These results show that these CZT thin film samples can not only play a key role in the tandem structures of high-efficiency solar cells but they could also be used in the detection of X-rays and gamma rays.
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spelling pubmed-90445182022-04-28 The synthesis of CdZnTe semiconductor thin films for tandem solar cells Shah, Nazar Abbas Mahmood, Waqar Abbas, Murrawat Nazar, Nadeem Khosa, Ashfaq H. Zeb, Aurang Malik, Abdul RSC Adv Chemistry A new approach is adopted to grow cadmium zinc telluride (CdZnTe) thin films using the close spaced sublimation (CSS) technique. The deposition parameters for the growth of cadmium telluride (CdTe) thin films onto the glass substrate were optimized. A zinc telluride (ZnTe) thin film layer was deposited onto already-deposited CdTe thin film to fabricate the CdZnTe (CZT) thin film sample as a ternary compound. Annealing was done after the successful deposition of CZT thin films before further characterization of the CZT thin film samples. The structures of the CZT thin film samples were studied using X-ray diffraction (XRD) and cubic phases were found. A spectrophotometer was used to study the optical parameters, and the energy band gap was found to be in the range of 1.45 eV to 1.75 eV after annealing. The nature of the direct band gap predicts that it might be an ideal component in second-generation solar cells. A Hall measurement system was used to find that the electrical conductivity was in the range of 4.6 × 10(−6) to 8.2 × 10(−11) (ohm cm)(−1). XPS analysis confirmed the presence of Zn in the CdTe thin films. A significant change in electronic properties was observed. These results show that these CZT thin film samples can not only play a key role in the tandem structures of high-efficiency solar cells but they could also be used in the detection of X-rays and gamma rays. The Royal Society of Chemistry 2021-12-15 /pmc/articles/PMC9044518/ /pubmed/35494116 http://dx.doi.org/10.1039/d1ra07755d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Shah, Nazar Abbas
Mahmood, Waqar
Abbas, Murrawat
Nazar, Nadeem
Khosa, Ashfaq H.
Zeb, Aurang
Malik, Abdul
The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title_full The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title_fullStr The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title_full_unstemmed The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title_short The synthesis of CdZnTe semiconductor thin films for tandem solar cells
title_sort synthesis of cdznte semiconductor thin films for tandem solar cells
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9044518/
https://www.ncbi.nlm.nih.gov/pubmed/35494116
http://dx.doi.org/10.1039/d1ra07755d
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