Locally collective hydrogen bonding isolates lead octahedra for white emission improvement

Bin-Bin Cui; Ying Han; Bolong Huang; Yizhou Zhao; Xianxin Wu; Lang Liu; Guangyue Cao; Qin Du; Na Liu; Wei Zou; Mingzi Sun; Lin Wang; Xinfeng Liu; Jianpu Wang; Huanping Zhou; Qi Chen

doi:10.1038/s41467-019-13264-5

Locally collective hydrogen bonding isolates lead octahedra for white emission improvement

Bin-Bin Cui^*, Ying Han, Bolong Huang^*, Yizhou Zhao, Xianxin Wu, Lang Liu, Guangyue Cao, Qin Du, Na Liu, Wei Zou, Mingzi Sun, Lin Wang, Xinfeng Liu, Jianpu Wang, Huanping Zhou, Qi Chen^*

^*Corresponding author for this work

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

102 Citations (Scopus)

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Abstract

As one of next-generation semiconductors, hybrid halide perovskites with tailorable optoelectronic properties are promising for photovoltaics, lighting, and displaying. This tunability lies on variable crystal structures, wherein the spatial arrangement of halide octahedra is essential to determine the assembly behavior and materials properties. Herein, we report to manipulate their assembling behavior and crystal dimensionality by locally collective hydrogen bonding effects. Specifically, a unique urea-amide cation is employed to form corrugated 1D crystals by interacting with bromide atoms in lead octahedra via multiple hydrogen bonds. Further tuning the stoichiometry, cations are bonded with water molecules to create a larger spacer that isolates individual lead bromide octahedra. It leads to zero-dimension (0D) single crystals, which exhibit broadband ‘warm’ white emission with photoluminescence quantum efficiency 5 times higher than 1D counterpart. This work suggests a feasible strategy to modulate the connectivity of octahedra and consequent crystal dimensionality for the enhancement of their optoelectronic properties. © 2019, The Author(s).

Original language	English
Article number	5190
Journal	Nature Communications
Volume	10
Online published	15 Nov 2019
DOIs	https://doi.org/10.1038/s41467-019-13264-5
Publication status	Published - 2019
Externally published	Yes

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This full text is made available under CC-BY 4.0. https://creativecommons.org/licenses/by/4.0/

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abstract = "As one of next-generation semiconductors, hybrid halide perovskites with tailorable optoelectronic properties are promising for photovoltaics, lighting, and displaying. This tunability lies on variable crystal structures, wherein the spatial arrangement of halide octahedra is essential to determine the assembly behavior and materials properties. Herein, we report to manipulate their assembling behavior and crystal dimensionality by locally collective hydrogen bonding effects. Specifically, a unique urea-amide cation is employed to form corrugated 1D crystals by interacting with bromide atoms in lead octahedra via multiple hydrogen bonds. Further tuning the stoichiometry, cations are bonded with water molecules to create a larger spacer that isolates individual lead bromide octahedra. It leads to zero-dimension (0D) single crystals, which exhibit broadband {\textquoteleft}warm{\textquoteright} white emission with photoluminescence quantum efficiency 5 times higher than 1D counterpart. This work suggests a feasible strategy to modulate the connectivity of octahedra and consequent crystal dimensionality for the enhancement of their optoelectronic properties. {\textcopyright} 2019, The Author(s).",

author = "Bin-Bin Cui and Ying Han and Bolong Huang and Yizhou Zhao and Xianxin Wu and Lang Liu and Guangyue Cao and Qin Du and Na Liu and Wei Zou and Mingzi Sun and Lin Wang and Xinfeng Liu and Jianpu Wang and Huanping Zhou and Qi Chen",

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T1 - Locally collective hydrogen bonding isolates lead octahedra for white emission improvement

AU - Cui, Bin-Bin

AU - Han, Ying

AU - Huang, Bolong

AU - Zhao, Yizhou

AU - Wu, Xianxin

AU - Liu, Lang

AU - Cao, Guangyue

AU - Du, Qin

AU - Liu, Na

AU - Zou, Wei

AU - Sun, Mingzi

AU - Wang, Lin

AU - Liu, Xinfeng

AU - Wang, Jianpu

AU - Zhou, Huanping

AU - Chen, Qi

PY - 2019

Y1 - 2019

N2 - As one of next-generation semiconductors, hybrid halide perovskites with tailorable optoelectronic properties are promising for photovoltaics, lighting, and displaying. This tunability lies on variable crystal structures, wherein the spatial arrangement of halide octahedra is essential to determine the assembly behavior and materials properties. Herein, we report to manipulate their assembling behavior and crystal dimensionality by locally collective hydrogen bonding effects. Specifically, a unique urea-amide cation is employed to form corrugated 1D crystals by interacting with bromide atoms in lead octahedra via multiple hydrogen bonds. Further tuning the stoichiometry, cations are bonded with water molecules to create a larger spacer that isolates individual lead bromide octahedra. It leads to zero-dimension (0D) single crystals, which exhibit broadband ‘warm’ white emission with photoluminescence quantum efficiency 5 times higher than 1D counterpart. This work suggests a feasible strategy to modulate the connectivity of octahedra and consequent crystal dimensionality for the enhancement of their optoelectronic properties. © 2019, The Author(s).

AB - As one of next-generation semiconductors, hybrid halide perovskites with tailorable optoelectronic properties are promising for photovoltaics, lighting, and displaying. This tunability lies on variable crystal structures, wherein the spatial arrangement of halide octahedra is essential to determine the assembly behavior and materials properties. Herein, we report to manipulate their assembling behavior and crystal dimensionality by locally collective hydrogen bonding effects. Specifically, a unique urea-amide cation is employed to form corrugated 1D crystals by interacting with bromide atoms in lead octahedra via multiple hydrogen bonds. Further tuning the stoichiometry, cations are bonded with water molecules to create a larger spacer that isolates individual lead bromide octahedra. It leads to zero-dimension (0D) single crystals, which exhibit broadband ‘warm’ white emission with photoluminescence quantum efficiency 5 times higher than 1D counterpart. This work suggests a feasible strategy to modulate the connectivity of octahedra and consequent crystal dimensionality for the enhancement of their optoelectronic properties. © 2019, The Author(s).

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U2 - 10.1038/s41467-019-13264-5

DO - 10.1038/s41467-019-13264-5

M3 - RGC 21 - Publication in refereed journal

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SN - 2041-1723

VL - 10

JO - Nature Communications

JF - Nature Communications

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Locally collective hydrogen bonding isolates lead octahedra for white emission improvement

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