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Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films
In this paper we explain the temperature dependence of excitonic effective mass and charge carrier conduction mechanism occurs in CH(3)NH(3)PbI(3−x)Cl(x) thin films prepared by chemical dip coating (CDC), spray pyrolysis (Spray) and repeated dipping-withdrawing (Dipping). Hall Effect study confirmed...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8144584/ https://www.ncbi.nlm.nih.gov/pubmed/34031506 http://dx.doi.org/10.1038/s41598-021-90247-x |
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author | Karim, A. M. M. Tanveer Khan, M. K. R. Hossain, M. S. |
author_facet | Karim, A. M. M. Tanveer Khan, M. K. R. Hossain, M. S. |
author_sort | Karim, A. M. M. Tanveer |
collection | PubMed |
description | In this paper we explain the temperature dependence of excitonic effective mass and charge carrier conduction mechanism occurs in CH(3)NH(3)PbI(3−x)Cl(x) thin films prepared by chemical dip coating (CDC), spray pyrolysis (Spray) and repeated dipping-withdrawing (Dipping). Hall Effect study confirmed that prepared CH(3)NH(3)PbI(3−x)Cl(x) samples are p-type semiconductor having carrier concentration of the order of ~ 10(16) cm(−3). The charge carrier mobility, mean free path and mean free life time were found to decrease with increasing temperature due to polaronic effect. The excitonic effective mass is estimated to (0.090–0.196)m(e) and excitonic binding energy (15–33) meV, well consistent with Wannier-Mott hydrogenic model and the nature of exciton is likely to be Mott-Wannier type. From electrical measurement, it was observed that charge carrier conduction in CH(3)NH(3)PbI(3−x)Cl(x) is governed by migration of [Formula: see text] and CH(3)N [Formula: see text] vacancies and vacancy-assisted diffusion processes depending on temperature. |
format | Online Article Text |
id | pubmed-8144584 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-81445842021-05-26 Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films Karim, A. M. M. Tanveer Khan, M. K. R. Hossain, M. S. Sci Rep Article In this paper we explain the temperature dependence of excitonic effective mass and charge carrier conduction mechanism occurs in CH(3)NH(3)PbI(3−x)Cl(x) thin films prepared by chemical dip coating (CDC), spray pyrolysis (Spray) and repeated dipping-withdrawing (Dipping). Hall Effect study confirmed that prepared CH(3)NH(3)PbI(3−x)Cl(x) samples are p-type semiconductor having carrier concentration of the order of ~ 10(16) cm(−3). The charge carrier mobility, mean free path and mean free life time were found to decrease with increasing temperature due to polaronic effect. The excitonic effective mass is estimated to (0.090–0.196)m(e) and excitonic binding energy (15–33) meV, well consistent with Wannier-Mott hydrogenic model and the nature of exciton is likely to be Mott-Wannier type. From electrical measurement, it was observed that charge carrier conduction in CH(3)NH(3)PbI(3−x)Cl(x) is governed by migration of [Formula: see text] and CH(3)N [Formula: see text] vacancies and vacancy-assisted diffusion processes depending on temperature. Nature Publishing Group UK 2021-05-24 /pmc/articles/PMC8144584/ /pubmed/34031506 http://dx.doi.org/10.1038/s41598-021-90247-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Karim, A. M. M. Tanveer Khan, M. K. R. Hossain, M. S. Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title | Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title_full | Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title_fullStr | Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title_full_unstemmed | Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title_short | Temperature dependency of excitonic effective mass and charge carrier conduction mechanism in CH(3)NH(3)PbI(3−x)Cl(x) thin films |
title_sort | temperature dependency of excitonic effective mass and charge carrier conduction mechanism in ch(3)nh(3)pbi(3−x)cl(x) thin films |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8144584/ https://www.ncbi.nlm.nih.gov/pubmed/34031506 http://dx.doi.org/10.1038/s41598-021-90247-x |
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