Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals

Abstract The structural and photophysical characteristics of MAPbBr3 single crystals prepared using the inverse temperature crystallization method are evaluated using temperature-dependent X-ray diffraction (XRD) and optical spectroscopy. Contrary to previous research reports on perovskite materials...

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Autores principales:	Kai-Hung Wang, Liang-Chen Li, Muthaiah Shellaiah, Kien Wen Sun
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f550dabf6cf047f4a708c26d22843d57
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spelling	oai:doaj.org-article:f550dabf6cf047f4a708c26d22843d572021-12-02T15:06:03ZStructural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals10.1038/s41598-017-13571-12045-2322https://doaj.org/article/f550dabf6cf047f4a708c26d22843d572017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13571-1https://doaj.org/toc/2045-2322Abstract The structural and photophysical characteristics of MAPbBr3 single crystals prepared using the inverse temperature crystallization method are evaluated using temperature-dependent X-ray diffraction (XRD) and optical spectroscopy. Contrary to previous research reports on perovskite materials, we study phase transitions in crystal lattice structures accompanied with changes in optical properties expand throughout a wide temperature range of 300–1.5 K. The XRD studies reveal several phase transitions occurred at ~210 K, ~145 K, and ~80 K, respectively. The coexistence of two different crystallographic phases was observed at a temperature below 145 K. The emission peaks in the PL spectra are all asymmetric in line shape with weak and broad shoulders near the absorption edges, which are attributed to the Br atom vacancy on the surface of the crystals. The time-resolved PL measurements reveal the effect of the desorption/adsorption of gas molecules on the crystal surface on the PL lifetimes. Raman spectroscopy results indicate the strong interplays between cations and different halide atoms. Lastly, no diamagnetic shift or split in emission peaks can be observed in the magneto-PL spectra even at an applied magnetic field up to 5 T and at a temperature as low as 1.5 K.Kai-Hung WangLiang-Chen LiMuthaiah ShellaiahKien Wen SunNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kai-Hung Wang Liang-Chen Li Muthaiah Shellaiah Kien Wen Sun Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
description	Abstract The structural and photophysical characteristics of MAPbBr3 single crystals prepared using the inverse temperature crystallization method are evaluated using temperature-dependent X-ray diffraction (XRD) and optical spectroscopy. Contrary to previous research reports on perovskite materials, we study phase transitions in crystal lattice structures accompanied with changes in optical properties expand throughout a wide temperature range of 300–1.5 K. The XRD studies reveal several phase transitions occurred at ~210 K, ~145 K, and ~80 K, respectively. The coexistence of two different crystallographic phases was observed at a temperature below 145 K. The emission peaks in the PL spectra are all asymmetric in line shape with weak and broad shoulders near the absorption edges, which are attributed to the Br atom vacancy on the surface of the crystals. The time-resolved PL measurements reveal the effect of the desorption/adsorption of gas molecules on the crystal surface on the PL lifetimes. Raman spectroscopy results indicate the strong interplays between cations and different halide atoms. Lastly, no diamagnetic shift or split in emission peaks can be observed in the magneto-PL spectra even at an applied magnetic field up to 5 T and at a temperature as low as 1.5 K.
format	article
author	Kai-Hung Wang Liang-Chen Li Muthaiah Shellaiah Kien Wen Sun
author_facet	Kai-Hung Wang Liang-Chen Li Muthaiah Shellaiah Kien Wen Sun
author_sort	Kai-Hung Wang
title	Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
title_short	Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
title_full	Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
title_fullStr	Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
title_full_unstemmed	Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals
title_sort	structural and photophysical properties of methylammonium lead tribromide (mapbbr3) single crystals
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f550dabf6cf047f4a708c26d22843d57
work_keys_str_mv	AT kaihungwang structuralandphotophysicalpropertiesofmethylammoniumleadtribromidemapbbr3singlecrystals AT liangchenli structuralandphotophysicalpropertiesofmethylammoniumleadtribromidemapbbr3singlecrystals AT muthaiahshellaiah structuralandphotophysicalpropertiesofmethylammoniumleadtribromidemapbbr3singlecrystals AT kienwensun structuralandphotophysicalpropertiesofmethylammoniumleadtribromidemapbbr3singlecrystals
_version_	1718388619321802752

Structural and Photophysical Properties of Methylammonium Lead Tribromide (MAPbBr3) Single Crystals

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