CH3NH2 gas induced (110) preferred cesium-containing perovskite films with reduced PbI6 octahedron distortion and enhanced moisture stability

Yue Chang; Li Wang; Jiliang Zhang; Zhongmin Zhou; Chongwen Li; Bingbing Chen; Lioz Etgar; Guanglei Cui; Shuping Pang

doi:10.1039/c6ta10444d

CH₃NH₂ gas induced (110) preferred cesium-containing perovskite films with reduced PbI₆ octahedron distortion and enhanced moisture stability

Yue Chang, Li Wang, Jiliang Zhang, Zhongmin Zhou, Chongwen Li, Bingbing Chen, Lioz Etgar, Guanglei Cui^*, Shuping Pang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

40 Citations (Scopus)

Abstract

We report here the discovery of a fancy interaction between cesium iodide (CsI) and methylamine (CH₃NH₂) due to the presence of the hydrogen bond. The formed CsI·xCH₃NH₂ is a liquid phase, which facilitates the large scale fabrication of highly uniform cesium-containing perovskite films with strong (110) preferred orientation by the CH₃NH₂ gas healing process. With this method, at most 10% nonpolar Cs cations could fully dope into the crystal lattice and extremely enhance the interaction of the inorganic framework with a more symmetrical PbI₆ octahedron, resulting in obvious improvement in moisture stability under continuous illumination.

Original language	English
Pages (from-to)	4803-4808
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	10
DOIs	https://doi.org/10.1039/c6ta10444d
Publication status	Published - 2017

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@article{ca3c83eddce945a9bd38e860e6b0bca4,

title = "CH3NH2 gas induced (110) preferred cesium-containing perovskite films with reduced PbI6 octahedron distortion and enhanced moisture stability",

abstract = "We report here the discovery of a fancy interaction between cesium iodide (CsI) and methylamine (CH3NH2) due to the presence of the hydrogen bond. The formed CsI·xCH3NH2 is a liquid phase, which facilitates the large scale fabrication of highly uniform cesium-containing perovskite films with strong (110) preferred orientation by the CH3NH2 gas healing process. With this method, at most 10% nonpolar Cs cations could fully dope into the crystal lattice and extremely enhance the interaction of the inorganic framework with a more symmetrical PbI6 octahedron, resulting in obvious improvement in moisture stability under continuous illumination.",

author = "Yue Chang and Li Wang and Jiliang Zhang and Zhongmin Zhou and Chongwen Li and Bingbing Chen and Lioz Etgar and Guanglei Cui and Shuping Pang",

year = "2017",

doi = "10.1039/c6ta10444d",

language = "English",

volume = "5",

pages = "4803--4808",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

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}

CH₃NH₂ gas induced (110) preferred cesium-containing perovskite films with reduced PbI₆ octahedron distortion and enhanced moisture stability. / Chang, Yue; Wang, Li; Zhang, Jiliang et al.
In: Journal of Materials Chemistry A, Vol. 5, No. 10, 2017, p. 4803-4808.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - CH3NH2 gas induced (110) preferred cesium-containing perovskite films with reduced PbI6 octahedron distortion and enhanced moisture stability

AU - Chang, Yue

AU - Wang, Li

AU - Zhang, Jiliang

AU - Zhou, Zhongmin

AU - Li, Chongwen

AU - Chen, Bingbing

AU - Etgar, Lioz

AU - Cui, Guanglei

AU - Pang, Shuping

PY - 2017

Y1 - 2017

N2 - We report here the discovery of a fancy interaction between cesium iodide (CsI) and methylamine (CH3NH2) due to the presence of the hydrogen bond. The formed CsI·xCH3NH2 is a liquid phase, which facilitates the large scale fabrication of highly uniform cesium-containing perovskite films with strong (110) preferred orientation by the CH3NH2 gas healing process. With this method, at most 10% nonpolar Cs cations could fully dope into the crystal lattice and extremely enhance the interaction of the inorganic framework with a more symmetrical PbI6 octahedron, resulting in obvious improvement in moisture stability under continuous illumination.

AB - We report here the discovery of a fancy interaction between cesium iodide (CsI) and methylamine (CH3NH2) due to the presence of the hydrogen bond. The formed CsI·xCH3NH2 is a liquid phase, which facilitates the large scale fabrication of highly uniform cesium-containing perovskite films with strong (110) preferred orientation by the CH3NH2 gas healing process. With this method, at most 10% nonpolar Cs cations could fully dope into the crystal lattice and extremely enhance the interaction of the inorganic framework with a more symmetrical PbI6 octahedron, resulting in obvious improvement in moisture stability under continuous illumination.

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U2 - 10.1039/c6ta10444d

DO - 10.1039/c6ta10444d

M3 - RGC 21 - Publication in refereed journal

SN - 2050-7488

VL - 5

SP - 4803

EP - 4808

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 10

ER -