Cargando…

Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal

Organic-inorganic hybrid perovskites are attracting intense research effort due to their impressive performance in solar cells. While the carrier transport parameters such as mobility and bulk carrier lifetime shows sufficient characteristics, the surface recombination, which can have major impact o...

Descripción completa

Detalles Bibliográficos
Autores principales: Yang, Ye, Yan, Yong, Yang, Mengjin, Choi, Sukgeun, Zhu, Kai, Luther, Joseph M., Beard, Matthew C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4918347/
https://www.ncbi.nlm.nih.gov/pubmed/26245855
http://dx.doi.org/10.1038/ncomms8961
_version_ 1782439107566239744
author Yang, Ye
Yan, Yong
Yang, Mengjin
Choi, Sukgeun
Zhu, Kai
Luther, Joseph M.
Beard, Matthew C.
author_facet Yang, Ye
Yan, Yong
Yang, Mengjin
Choi, Sukgeun
Zhu, Kai
Luther, Joseph M.
Beard, Matthew C.
author_sort Yang, Ye
collection PubMed
description Organic-inorganic hybrid perovskites are attracting intense research effort due to their impressive performance in solar cells. While the carrier transport parameters such as mobility and bulk carrier lifetime shows sufficient characteristics, the surface recombination, which can have major impact on the solar cell performance, has not been studied. Here we measure surface recombination dynamics in CH(3)NH(3)PbBr(3) perovskite single crystals using broadband transient reflectance spectroscopy. The surface recombination velocity is found to be 3.4±0.1 × 10(3) cm s(−1), ∼2–3 orders of magnitude lower than that in many important unpassivated semiconductors employed in solar cells. Our result suggests that the planar grain size for the perovskite thin films should be larger than ∼30 μm to avoid the influence of surface recombination on the effective carrier lifetime.
format Online
Article
Text
id pubmed-4918347
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Nature Publishing Group
record_format MEDLINE/PubMed
spelling pubmed-49183472016-07-07 Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal Yang, Ye Yan, Yong Yang, Mengjin Choi, Sukgeun Zhu, Kai Luther, Joseph M. Beard, Matthew C. Nat Commun Article Organic-inorganic hybrid perovskites are attracting intense research effort due to their impressive performance in solar cells. While the carrier transport parameters such as mobility and bulk carrier lifetime shows sufficient characteristics, the surface recombination, which can have major impact on the solar cell performance, has not been studied. Here we measure surface recombination dynamics in CH(3)NH(3)PbBr(3) perovskite single crystals using broadband transient reflectance spectroscopy. The surface recombination velocity is found to be 3.4±0.1 × 10(3) cm s(−1), ∼2–3 orders of magnitude lower than that in many important unpassivated semiconductors employed in solar cells. Our result suggests that the planar grain size for the perovskite thin films should be larger than ∼30 μm to avoid the influence of surface recombination on the effective carrier lifetime. Nature Publishing Group 2015-08-06 /pmc/articles/PMC4918347/ /pubmed/26245855 http://dx.doi.org/10.1038/ncomms8961 Text en Copyright © 2015, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. 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
Yang, Ye
Yan, Yong
Yang, Mengjin
Choi, Sukgeun
Zhu, Kai
Luther, Joseph M.
Beard, Matthew C.
Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title_full Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title_fullStr Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title_full_unstemmed Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title_short Low surface recombination velocity in solution-grown CH(3)NH(3)PbBr(3) perovskite single crystal
title_sort low surface recombination velocity in solution-grown ch(3)nh(3)pbbr(3) perovskite single crystal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4918347/
https://www.ncbi.nlm.nih.gov/pubmed/26245855
http://dx.doi.org/10.1038/ncomms8961
work_keys_str_mv AT yangye lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT yanyong lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT yangmengjin lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT choisukgeun lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT zhukai lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT lutherjosephm lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal
AT beardmatthewc lowsurfacerecombinationvelocityinsolutiongrownch3nh3pbbr3perovskitesinglecrystal