Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites

Xun Xiao; Jun Dai; Yanjun Fang; Jingjing Zhao; Xiaopeng Zheng; Shi Tang; Peter Neil Rudd; Xiao Cheng Zeng; Jinsong Huang

doi:10.1021/acsenergylett.8b00047

Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites

Xun Xiao
, Jun Dai
, Yanjun Fang
, Jingjing Zhao
, Xiaopeng Zheng
, Shi Tang
, Peter Neil Rudd
, Xiao Cheng Zeng
, Jinsong Huang^*

^*Corresponding author for this work

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

312 Citations (Scopus)

Abstract

Ion migration in a three-dimensional (3D) perovskite is the source of many unique phenomena such as photocurrent hysteresis and a giant switchable photovoltaic effect and can also accelerate the degradation of perovskite-based electronic devices. Here we report the observation of suppressed ion migration along the in-plane direction of layered perovskites by studying the conductivity of layered single-crystal perovskites at varied temperatures. Large-area layered perovskite thin single crystals are synthesized by the space-confined method. The absence of ion migration in these layered perovskites can be explained by an increase in the energy required to form an ion vacancy, compared to 3D perovskites. The suppressed ion migration in layered perovskites indicates that they have intrinsically better stability under an electric field and may contribute to the improved perovskite stability in devices made of layered perovskite through the reduction of ion diffusion-induced perovskite degradation or corrosion of charge transport layers and electrodes.

Original language	English
Pages (from-to)	684-688
Journal	ACS Energy Letters
Volume	3
Issue number	3
DOIs	https://doi.org/10.1021/acsenergylett.8b00047
Publication status	Published - 9 Mar 2018
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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SDG 7 Affordable and Clean Energy

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title = "Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites",

abstract = "Ion migration in a three-dimensional (3D) perovskite is the source of many unique phenomena such as photocurrent hysteresis and a giant switchable photovoltaic effect and can also accelerate the degradation of perovskite-based electronic devices. Here we report the observation of suppressed ion migration along the in-plane direction of layered perovskites by studying the conductivity of layered single-crystal perovskites at varied temperatures. Large-area layered perovskite thin single crystals are synthesized by the space-confined method. The absence of ion migration in these layered perovskites can be explained by an increase in the energy required to form an ion vacancy, compared to 3D perovskites. The suppressed ion migration in layered perovskites indicates that they have intrinsically better stability under an electric field and may contribute to the improved perovskite stability in devices made of layered perovskite through the reduction of ion diffusion-induced perovskite degradation or corrosion of charge transport layers and electrodes.",

author = "Xun Xiao and Jun Dai and Yanjun Fang and Jingjing Zhao and Xiaopeng Zheng and Shi Tang and Rudd, \{Peter Neil\} and Zeng, \{Xiao Cheng\} and Jinsong Huang",

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TY - JOUR

T1 - Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites

AU - Xiao, Xun

AU - Dai, Jun

AU - Fang, Yanjun

AU - Zhao, Jingjing

AU - Zheng, Xiaopeng

AU - Tang, Shi

AU - Rudd, Peter Neil

AU - Zeng, Xiao Cheng

AU - Huang, Jinsong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/3/9

Y1 - 2018/3/9

N2 - Ion migration in a three-dimensional (3D) perovskite is the source of many unique phenomena such as photocurrent hysteresis and a giant switchable photovoltaic effect and can also accelerate the degradation of perovskite-based electronic devices. Here we report the observation of suppressed ion migration along the in-plane direction of layered perovskites by studying the conductivity of layered single-crystal perovskites at varied temperatures. Large-area layered perovskite thin single crystals are synthesized by the space-confined method. The absence of ion migration in these layered perovskites can be explained by an increase in the energy required to form an ion vacancy, compared to 3D perovskites. The suppressed ion migration in layered perovskites indicates that they have intrinsically better stability under an electric field and may contribute to the improved perovskite stability in devices made of layered perovskite through the reduction of ion diffusion-induced perovskite degradation or corrosion of charge transport layers and electrodes.

AB - Ion migration in a three-dimensional (3D) perovskite is the source of many unique phenomena such as photocurrent hysteresis and a giant switchable photovoltaic effect and can also accelerate the degradation of perovskite-based electronic devices. Here we report the observation of suppressed ion migration along the in-plane direction of layered perovskites by studying the conductivity of layered single-crystal perovskites at varied temperatures. Large-area layered perovskite thin single crystals are synthesized by the space-confined method. The absence of ion migration in these layered perovskites can be explained by an increase in the energy required to form an ion vacancy, compared to 3D perovskites. The suppressed ion migration in layered perovskites indicates that they have intrinsically better stability under an electric field and may contribute to the improved perovskite stability in devices made of layered perovskite through the reduction of ion diffusion-induced perovskite degradation or corrosion of charge transport layers and electrodes.

UR - https://www.scopus.com/pages/publications/85043463240

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U2 - 10.1021/acsenergylett.8b00047

DO - 10.1021/acsenergylett.8b00047

M3 - RGC 21 - Publication in refereed journal

SN - 2380-8195

VL - 3

SP - 684

EP - 688

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 3

ER -

Suppressed Ion Migration along the In-Plane Direction in Layered Perovskites

Abstract

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