Self-Elimination of Intrinsic Defects Improves the Low-Temperature Performance of Perovskite Photovoltaics

Yihua Chen; Shunquan Tan; Nengxu Li; Bolong Huang; Xiuxiu Niu; Liang Li; Mingzi Sun; Yu Zhang; Xiao Zhang; Cheng Zhu; Ning Yang; Huachao Zai; Yiliang Wu; Sai Ma; Yang Bai; Qi Chen; Fei Xiao; Kangwen Sun; Huanping Zhou

doi:10.1016/j.joule.2020.07.006

Self-Elimination of Intrinsic Defects Improves the Low-Temperature Performance of Perovskite Photovoltaics

Yihua Chen
, Shunquan Tan
, Nengxu Li
, Bolong Huang
, Xiuxiu Niu
, Liang Li
, Mingzi Sun
, Yu Zhang
, Xiao Zhang
, Cheng Zhu
, Ning Yang
, Huachao Zai
, Yiliang Wu
, Sai Ma
, Yang Bai
, Qi Chen
, Fei Xiao
, Kangwen Sun
, Huanping Zhou^*

^*Corresponding author for this work

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

234 Citations (Scopus)

Abstract

Hybrid halide perovskite solar cells have found potential applications beyond terrestrial implementation due to their unique advantages in cold environments. Unfortunately, the pioneer exploits are limited in inferior device efficiency, while the operating mechanisms at low temperatures remain unclear. Here, we revealed substantial performance enhancement for (FA,MA,Cs)Pb(I,Br)₃-based perovskite solar cells at temperatures from 290 to 180 K. Remarkably, the device obtained the highest efficiency of 25.2% (stabilized 24.2%) at 220 K, boosted from a certified efficiency of 23.3% (stabilized 22.8%) at 300 K. We proposed that the phase transition and lattice distortion in perovskite films during temperature cycling effectively activates the self-elimination of intrinsic defects, which contributes to the improved open-circuit voltage (1.153 to 1.229 V) and, thus, efficiency. In addition, the device without encapsulation was tested in the simulated near-space environment, demonstrating their operational feasibility and stability for practical low-temperature applications. © 2020 Elsevier Inc.

Original language	English
Pages (from-to)	1961-1976
Journal	Joule
Volume	4
Issue number	9
Online published	30 Jul 2020
DOIs	https://doi.org/10.1016/j.joule.2020.07.006
Publication status	Published - 16 Sept 2020
Externally published	Yes

Funding

This work is supported by the National Natural Science Foundation of China (51722201, 21975028, 51672008, 91733301, 51775021, 51972004, and NSFC 21771156), the Natural Science Foundation of Beijing (4182026), National Key Research and Development Program of China (2017YFA0206701), Beijing Municipal Science and Technology Project (Z181100005118002), and the Early Career Scheme (ECS) fund (grant no: PolyU 253026/16P) from the Research Grant Council (RGC) in Hong Kong. We appreciate Prof. Klaus Weber (The Australian National University) for the insightful analysis and valuable discussion of open-circuit voltage at different temperatures.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

aerospace
defect
low temperature
open-circuit voltage
perovskite solar cell
phase transition
self-elimination

RGC Funding Information

RGC-funded

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title = "Self-Elimination of Intrinsic Defects Improves the Low-Temperature Performance of Perovskite Photovoltaics",

abstract = "Hybrid halide perovskite solar cells have found potential applications beyond terrestrial implementation due to their unique advantages in cold environments. Unfortunately, the pioneer exploits are limited in inferior device efficiency, while the operating mechanisms at low temperatures remain unclear. Here, we revealed substantial performance enhancement for (FA,MA,Cs)Pb(I,Br)3-based perovskite solar cells at temperatures from 290 to 180 K. Remarkably, the device obtained the highest efficiency of 25.2\% (stabilized 24.2\%) at 220 K, boosted from a certified efficiency of 23.3\% (stabilized 22.8\%) at 300 K. We proposed that the phase transition and lattice distortion in perovskite films during temperature cycling effectively activates the self-elimination of intrinsic defects, which contributes to the improved open-circuit voltage (1.153 to 1.229 V) and, thus, efficiency. In addition, the device without encapsulation was tested in the simulated near-space environment, demonstrating their operational feasibility and stability for practical low-temperature applications. {\textcopyright} 2020 Elsevier Inc.",

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author = "Yihua Chen and Shunquan Tan and Nengxu Li and Bolong Huang and Xiuxiu Niu and Liang Li and Mingzi Sun and Yu Zhang and Xiao Zhang and Cheng Zhu and Ning Yang and Huachao Zai and Yiliang Wu and Sai Ma and Yang Bai and Qi Chen and Fei Xiao and Kangwen Sun and Huanping Zhou",

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T1 - Self-Elimination of Intrinsic Defects Improves the Low-Temperature Performance of Perovskite Photovoltaics

AU - Chen, Yihua

AU - Tan, Shunquan

AU - Li, Nengxu

AU - Huang, Bolong

AU - Niu, Xiuxiu

AU - Li, Liang

AU - Sun, Mingzi

AU - Zhang, Yu

AU - Zhang, Xiao

AU - Zhu, Cheng

AU - Yang, Ning

AU - Zai, Huachao

AU - Wu, Yiliang

AU - Ma, Sai

AU - Bai, Yang

AU - Chen, Qi

AU - Xiao, Fei

AU - Sun, Kangwen

AU - Zhou, Huanping

PY - 2020/9/16

Y1 - 2020/9/16

N2 - Hybrid halide perovskite solar cells have found potential applications beyond terrestrial implementation due to their unique advantages in cold environments. Unfortunately, the pioneer exploits are limited in inferior device efficiency, while the operating mechanisms at low temperatures remain unclear. Here, we revealed substantial performance enhancement for (FA,MA,Cs)Pb(I,Br)3-based perovskite solar cells at temperatures from 290 to 180 K. Remarkably, the device obtained the highest efficiency of 25.2% (stabilized 24.2%) at 220 K, boosted from a certified efficiency of 23.3% (stabilized 22.8%) at 300 K. We proposed that the phase transition and lattice distortion in perovskite films during temperature cycling effectively activates the self-elimination of intrinsic defects, which contributes to the improved open-circuit voltage (1.153 to 1.229 V) and, thus, efficiency. In addition, the device without encapsulation was tested in the simulated near-space environment, demonstrating their operational feasibility and stability for practical low-temperature applications. © 2020 Elsevier Inc.

AB - Hybrid halide perovskite solar cells have found potential applications beyond terrestrial implementation due to their unique advantages in cold environments. Unfortunately, the pioneer exploits are limited in inferior device efficiency, while the operating mechanisms at low temperatures remain unclear. Here, we revealed substantial performance enhancement for (FA,MA,Cs)Pb(I,Br)3-based perovskite solar cells at temperatures from 290 to 180 K. Remarkably, the device obtained the highest efficiency of 25.2% (stabilized 24.2%) at 220 K, boosted from a certified efficiency of 23.3% (stabilized 22.8%) at 300 K. We proposed that the phase transition and lattice distortion in perovskite films during temperature cycling effectively activates the self-elimination of intrinsic defects, which contributes to the improved open-circuit voltage (1.153 to 1.229 V) and, thus, efficiency. In addition, the device without encapsulation was tested in the simulated near-space environment, demonstrating their operational feasibility and stability for practical low-temperature applications. © 2020 Elsevier Inc.

KW - aerospace

KW - defect

KW - low temperature

KW - open-circuit voltage

KW - perovskite solar cell

KW - phase transition

KW - self-elimination

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DO - 10.1016/j.joule.2020.07.006

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ER -

Self-Elimination of Intrinsic Defects Improves the Low-Temperature Performance of Perovskite Photovoltaics

Abstract

Funding

UN SDGs

Research Keywords

RGC Funding Information

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