Enhanced thermal stability of electron transport layer-free perovskite solar cells via interface strain releasing

Peng Zhang; Ting Zhang; Yafei Wang; Detao Liu; Hao Xu; Li Chen; Yanbo Li; Jiang Wu; Zhi David Chen; Shibin Li

doi:10.1016/j.jpowsour.2019.227091

Enhanced thermal stability of electron transport layer-free perovskite solar cells via interface strain releasing

Peng Zhang
, Ting Zhang
, Yafei Wang
, Detao Liu
, Hao Xu
, Li Chen
, Yanbo Li
, Jiang Wu
, Zhi David Chen
, Shibin Li

Producción científica: Article › revisión exhaustiva

28 Citas (Scopus)

Resumen

The thermal decomposition of perovskite films on ZnO surfaces is generally believed to originate from specific surface states of ZnO and the impact from the lattice mismatch between ZnO and perovskite films on this process has long been ignored. In this research, the role of lattice mismatch in the thermal degradation process of cesium-containing perovskite films on Al doped ZnO (AZO) is studied. A Ba(OH)₂ buffer layer on the surface of AZO is employed to release the lattice mismatch and suppress the thermal degradation of perovskite films resulted from ZnO. Consequently, perovskite films with enhanced thermal stability and crystalline properties are obtained. Meanwhile, the Ba(OH)₂ films efficiently passivate the surface trap states and reduce the vacuum level of the AZO surfaces. On this basis, electron transport layer-free perovskite solar cells yield the best efficiency of 18.18% and the thermal stability is obviously improved.

Idioma original	English
Número de artículo	227091
Publicación	Journal of Power Sources
Volumen	439
DOI	https://doi.org/10.1016/j.jpowsour.2019.227091
Estado	Published - nov 1 2019

Nota bibliográfica

Publisher Copyright:
© 2019 Elsevier B.V.

Financiación

This work was supported by National Natural Science Foundation of China under Grant Nos. 61421002 , 61574029 , 61471085 , and 61874150 . This work was also partially supported by University of Kentucky .

Financiadores	Número del financiador
University of Kentucky
National Natural Science Foundation of China (NSFC)	61471085, 61574029, 61874150, 61421002

ODS de las Naciones Unidas

Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible

Affordable and clean energy

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.jpowsour.2019.227091

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@article{dfe58928153842179f6c20207fb24b00,

title = "Enhanced thermal stability of electron transport layer-free perovskite solar cells via interface strain releasing",

abstract = "The thermal decomposition of perovskite films on ZnO surfaces is generally believed to originate from specific surface states of ZnO and the impact from the lattice mismatch between ZnO and perovskite films on this process has long been ignored. In this research, the role of lattice mismatch in the thermal degradation process of cesium-containing perovskite films on Al doped ZnO (AZO) is studied. A Ba(OH)2 buffer layer on the surface of AZO is employed to release the lattice mismatch and suppress the thermal degradation of perovskite films resulted from ZnO. Consequently, perovskite films with enhanced thermal stability and crystalline properties are obtained. Meanwhile, the Ba(OH)2 films efficiently passivate the surface trap states and reduce the vacuum level of the AZO surfaces. On this basis, electron transport layer-free perovskite solar cells yield the best efficiency of 18.18\% and the thermal stability is obviously improved.",

keywords = "Electron transport layer-free, Lattice mismatch, Perovskite solar cell, Thermal stability",

author = "Peng Zhang and Ting Zhang and Yafei Wang and Detao Liu and Hao Xu and Li Chen and Yanbo Li and Jiang Wu and Chen, \{Zhi David\} and Shibin Li",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = nov,

day = "1",

doi = "10.1016/j.jpowsour.2019.227091",

language = "English",

volume = "439",

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TY - JOUR

T1 - Enhanced thermal stability of electron transport layer-free perovskite solar cells via interface strain releasing

AU - Zhang, Peng

AU - Zhang, Ting

AU - Wang, Yafei

AU - Liu, Detao

AU - Xu, Hao

AU - Chen, Li

AU - Li, Yanbo

AU - Wu, Jiang

AU - Chen, Zhi David

AU - Li, Shibin

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The thermal decomposition of perovskite films on ZnO surfaces is generally believed to originate from specific surface states of ZnO and the impact from the lattice mismatch between ZnO and perovskite films on this process has long been ignored. In this research, the role of lattice mismatch in the thermal degradation process of cesium-containing perovskite films on Al doped ZnO (AZO) is studied. A Ba(OH)2 buffer layer on the surface of AZO is employed to release the lattice mismatch and suppress the thermal degradation of perovskite films resulted from ZnO. Consequently, perovskite films with enhanced thermal stability and crystalline properties are obtained. Meanwhile, the Ba(OH)2 films efficiently passivate the surface trap states and reduce the vacuum level of the AZO surfaces. On this basis, electron transport layer-free perovskite solar cells yield the best efficiency of 18.18% and the thermal stability is obviously improved.

AB - The thermal decomposition of perovskite films on ZnO surfaces is generally believed to originate from specific surface states of ZnO and the impact from the lattice mismatch between ZnO and perovskite films on this process has long been ignored. In this research, the role of lattice mismatch in the thermal degradation process of cesium-containing perovskite films on Al doped ZnO (AZO) is studied. A Ba(OH)2 buffer layer on the surface of AZO is employed to release the lattice mismatch and suppress the thermal degradation of perovskite films resulted from ZnO. Consequently, perovskite films with enhanced thermal stability and crystalline properties are obtained. Meanwhile, the Ba(OH)2 films efficiently passivate the surface trap states and reduce the vacuum level of the AZO surfaces. On this basis, electron transport layer-free perovskite solar cells yield the best efficiency of 18.18% and the thermal stability is obviously improved.

KW - Electron transport layer-free

KW - Lattice mismatch

KW - Perovskite solar cell

KW - Thermal stability

UR - https://www.scopus.com/pages/publications/85072027178

UR - https://www.scopus.com/pages/publications/85072027178#tab=citedBy

U2 - 10.1016/j.jpowsour.2019.227091

DO - 10.1016/j.jpowsour.2019.227091

M3 - Article

AN - SCOPUS:85072027178

SN - 0378-7753

VL - 439

JO - Journal of Power Sources

JF - Journal of Power Sources

M1 - 227091

ER -

Enhanced thermal stability of electron transport layer-free perovskite solar cells via interface strain releasing

Resumen

Nota bibliográfica

Financiación

ODS de las Naciones Unidas

ASJC Scopus subject areas

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