Defect-Engineering-Enabled High-Efficiency All-Inorganic Perovskite Solar Cells

Jia Liang; Xiao Han; Ji-Hui Yang; Boyu Zhang; Qiyi Fang; Jing Zhang; Qing Ai; Meredith M. Ogle; Tanguy Terlier; Angel A. Martí; Jun Lou

doi:10.1002/adma.201903448

Defect-Engineering-Enabled High-Efficiency All-Inorganic Perovskite Solar Cells

Jia Liang
, Xiao Han
, Ji-Hui Yang
, Boyu Zhang
, Qiyi Fang
, Jing Zhang
, Qing Ai
, Meredith M. Ogle
, Tanguy Terlier
, Angel A. Martí
, Jun Lou^*

^*Corresponding author for this work

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

185 Citations (Scopus)

Abstract

The emergence of cesium lead iodide (CsPbI₃) perovskite solar cells (PSCs) has generated enormous interest in the photovoltaic research community. However, in general they exhibit low power conversion efficiencies (PCEs) because of the existence of defects. A new all-inorganic perovskite material, CsPbI₃:Br:InI₃, is prepared by defect engineering of CsPbI₃. This new perovskite retains the same bandgap as CsPbI₃, while the intrinsic defect concentration is largely suppressed. Moreover, it can be prepared in an extremely high humidity atmosphere and thus a glovebox is not required. By completely eliminating the labile and expensive components in traditional PSCs, the all-inorganic PSCs based on CsPbI₃:Br:InI₃and carbon electrode exhibit PCE and open-circuit voltage as high as 12.04% and 1.20 V, respectively. More importantly, they demonstrate excellent stability in air for more than two months, while those based on CsPbI₃ can survive only a few days in air. The progress reported represents a major leap for all-inorganic PSCs and paves the way for their further exploration in order to achieve higher performance. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Original language	English
Article number	1903448
Number of pages	7
Journal	Advanced Materials
Volume	31
Issue number	51
Online published	4 Nov 2019
DOIs	https://doi.org/10.1002/adma.201903448
Publication status	Published - 20 Dec 2019
Externally published	Yes

Funding

J.L. and X.H. contributed to this work equally. This work was supported by the Peter M and Ruth L Nicholas Postdoctoral Fellowship in Nanotechnology (H21065) and the Welch Foundation grant C-1716. X.H. thanks the China Scholarship Council for partial support and Fundamental Research Funds for the Central Universities (3102019QD0418, 3102019ZD0402). ToF-SIMS analysis were carried out with support provided by the National Science Foundation CBET-1626418. This work conducted in part using resources of the Shared Equipment Authority at Rice University.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

all-inorganic solar cells
CsPbX3
defect engineering
indium
perovskite solar cells

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title = "Defect-Engineering-Enabled High-Efficiency All-Inorganic Perovskite Solar Cells",

abstract = "The emergence of cesium lead iodide (CsPbI3) perovskite solar cells (PSCs) has generated enormous interest in the photovoltaic research community. However, in general they exhibit low power conversion efficiencies (PCEs) because of the existence of defects. A new all-inorganic perovskite material, CsPbI3:Br:InI3, is prepared by defect engineering of CsPbI3. This new perovskite retains the same bandgap as CsPbI3, while the intrinsic defect concentration is largely suppressed. Moreover, it can be prepared in an extremely high humidity atmosphere and thus a glovebox is not required. By completely eliminating the labile and expensive components in traditional PSCs, the all-inorganic PSCs based on CsPbI3:Br:InI3 and carbon electrode exhibit PCE and open-circuit voltage as high as 12.04\% and 1.20 V, respectively. More importantly, they demonstrate excellent stability in air for more than two months, while those based on CsPbI3 can survive only a few days in air. The progress reported represents a major leap for all-inorganic PSCs and paves the way for their further exploration in order to achieve higher performance. {\textcopyright} 2019 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

keywords = "all-inorganic solar cells, CsPbX3, defect engineering, indium, perovskite solar cells",

author = "Jia Liang and Xiao Han and Ji-Hui Yang and Boyu Zhang and Qiyi Fang and Jing Zhang and Qing Ai and Ogle, \{Meredith M.\} and Tanguy Terlier and Mart{\'i}, \{Angel A.\} and Jun Lou",

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language = "English",

volume = "31",

journal = "Advanced Materials",

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TY - JOUR

T1 - Defect-Engineering-Enabled High-Efficiency All-Inorganic Perovskite Solar Cells

AU - Liang, Jia

AU - Han, Xiao

AU - Yang, Ji-Hui

AU - Zhang, Boyu

AU - Fang, Qiyi

AU - Zhang, Jing

AU - Ai, Qing

AU - Ogle, Meredith M.

AU - Terlier, Tanguy

AU - Martí, Angel A.

AU - Lou, Jun

PY - 2019/12/20

Y1 - 2019/12/20

N2 - The emergence of cesium lead iodide (CsPbI3) perovskite solar cells (PSCs) has generated enormous interest in the photovoltaic research community. However, in general they exhibit low power conversion efficiencies (PCEs) because of the existence of defects. A new all-inorganic perovskite material, CsPbI3:Br:InI3, is prepared by defect engineering of CsPbI3. This new perovskite retains the same bandgap as CsPbI3, while the intrinsic defect concentration is largely suppressed. Moreover, it can be prepared in an extremely high humidity atmosphere and thus a glovebox is not required. By completely eliminating the labile and expensive components in traditional PSCs, the all-inorganic PSCs based on CsPbI3:Br:InI3 and carbon electrode exhibit PCE and open-circuit voltage as high as 12.04% and 1.20 V, respectively. More importantly, they demonstrate excellent stability in air for more than two months, while those based on CsPbI3 can survive only a few days in air. The progress reported represents a major leap for all-inorganic PSCs and paves the way for their further exploration in order to achieve higher performance. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

AB - The emergence of cesium lead iodide (CsPbI3) perovskite solar cells (PSCs) has generated enormous interest in the photovoltaic research community. However, in general they exhibit low power conversion efficiencies (PCEs) because of the existence of defects. A new all-inorganic perovskite material, CsPbI3:Br:InI3, is prepared by defect engineering of CsPbI3. This new perovskite retains the same bandgap as CsPbI3, while the intrinsic defect concentration is largely suppressed. Moreover, it can be prepared in an extremely high humidity atmosphere and thus a glovebox is not required. By completely eliminating the labile and expensive components in traditional PSCs, the all-inorganic PSCs based on CsPbI3:Br:InI3 and carbon electrode exhibit PCE and open-circuit voltage as high as 12.04% and 1.20 V, respectively. More importantly, they demonstrate excellent stability in air for more than two months, while those based on CsPbI3 can survive only a few days in air. The progress reported represents a major leap for all-inorganic PSCs and paves the way for their further exploration in order to achieve higher performance. © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

KW - all-inorganic solar cells

KW - CsPbX3

KW - defect engineering

KW - indium

KW - perovskite solar cells

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U2 - 10.1002/adma.201903448

DO - 10.1002/adma.201903448

M3 - RGC 21 - Publication in refereed journal

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JO - Advanced Materials

JF - Advanced Materials

IS - 51

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ER -

Defect-Engineering-Enabled High-Efficiency All-Inorganic Perovskite Solar Cells

Abstract

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UN SDGs

Research Keywords

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