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Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes

Organometal halide perovskite-based optoelectronic devices are currently a hot research area owing to their unique properties, but widespread commercialization is plagued by their poor long-term stability. So far, the degradation mechanism of organometal halide perovskites is still indistinct due to...

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Autores principales: Li, Hui, Chen, Zhenhua, Sang, Zhuocheng, Zhang, Xiangzhi, Wang, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058416/
https://www.ncbi.nlm.nih.gov/pubmed/35519715
http://dx.doi.org/10.1039/d0ra08881a
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author Li, Hui
Chen, Zhenhua
Sang, Zhuocheng
Zhang, Xiangzhi
Wang, Yong
author_facet Li, Hui
Chen, Zhenhua
Sang, Zhuocheng
Zhang, Xiangzhi
Wang, Yong
author_sort Li, Hui
collection PubMed
description Organometal halide perovskite-based optoelectronic devices are currently a hot research area owing to their unique properties, but widespread commercialization is plagued by their poor long-term stability. So far, the degradation mechanism of organometal halide perovskites is still indistinct due to limited real time systematic study. In this work, we in situ study the crystal evolution of an organometal halide perovskite CH(3)NH(3)PbI(3), which is prepared on different kinds of framework substrates. Based on the in situ grazing incidence X-ray diffraction and X-ray near absorption edge spectrum, we observe the formation of some 2D networks of [PbI(6)](4−) octahedra intermediates during CH(3)NH(3)PbI(3) degradation in a moist environment at the early step of the degradation mechanism. We also show that the structural stability of CH(3)NH(3)PbI(3) deposited anodic TiO(2) nanotube substrates is relatively better than that of prepared perovskite on TiO(2) nanoparticles in moisture. The confinement of the 3D [PbI(6)](4−) octahedral crystal network probability reduces the ion migration by regular pores of crystalline TiO(2) nanotubes, improving the stability of the organometal halide perovskite. Furthermore, the X-ray excited luminescence intensity of CH(3)NH(3)PbI(3) fabricated on TiO(2) nanotubes is boosted 88% compared with that of conventional TiO(2) nanoparticle substrates, which demonstrates its potential application in scintillation detectors.
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spelling pubmed-90584162022-05-04 Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes Li, Hui Chen, Zhenhua Sang, Zhuocheng Zhang, Xiangzhi Wang, Yong RSC Adv Chemistry Organometal halide perovskite-based optoelectronic devices are currently a hot research area owing to their unique properties, but widespread commercialization is plagued by their poor long-term stability. So far, the degradation mechanism of organometal halide perovskites is still indistinct due to limited real time systematic study. In this work, we in situ study the crystal evolution of an organometal halide perovskite CH(3)NH(3)PbI(3), which is prepared on different kinds of framework substrates. Based on the in situ grazing incidence X-ray diffraction and X-ray near absorption edge spectrum, we observe the formation of some 2D networks of [PbI(6)](4−) octahedra intermediates during CH(3)NH(3)PbI(3) degradation in a moist environment at the early step of the degradation mechanism. We also show that the structural stability of CH(3)NH(3)PbI(3) deposited anodic TiO(2) nanotube substrates is relatively better than that of prepared perovskite on TiO(2) nanoparticles in moisture. The confinement of the 3D [PbI(6)](4−) octahedral crystal network probability reduces the ion migration by regular pores of crystalline TiO(2) nanotubes, improving the stability of the organometal halide perovskite. Furthermore, the X-ray excited luminescence intensity of CH(3)NH(3)PbI(3) fabricated on TiO(2) nanotubes is boosted 88% compared with that of conventional TiO(2) nanoparticle substrates, which demonstrates its potential application in scintillation detectors. The Royal Society of Chemistry 2020-12-08 /pmc/articles/PMC9058416/ /pubmed/35519715 http://dx.doi.org/10.1039/d0ra08881a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Li, Hui
Chen, Zhenhua
Sang, Zhuocheng
Zhang, Xiangzhi
Wang, Yong
Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title_full Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title_fullStr Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title_full_unstemmed Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title_short Stability study of organometal halide perovskite and its enhanced X-ray scintillation from the incorporation of anodic TiO(2) nanotubes
title_sort stability study of organometal halide perovskite and its enhanced x-ray scintillation from the incorporation of anodic tio(2) nanotubes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9058416/
https://www.ncbi.nlm.nih.gov/pubmed/35519715
http://dx.doi.org/10.1039/d0ra08881a
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