Tetrazole modulated perovskite films for efficient solar cells with improved moisture stability

Lisha Xie; Xiaoyu Deng; Chengbo Li; Yuying Cui; Zhiyuan Cao; Aili Wang; Shurong Wang; Yuanming Chen; Zhi Wang; Yaqing Liu; Qinye Bao; Liming Ding; Feng Hao

doi:10.1016/j.cej.2020.127579

Tetrazole modulated perovskite films for efficient solar cells with improved moisture stability

Lisha Xie
, Xiaoyu Deng
, Chengbo Li
, Yuying Cui
, Zhiyuan Cao
, Aili Wang
, Shurong Wang
, Yuanming Chen
, Zhi Wang
, Yaqing Liu
, Qinye Bao
, Liming Ding^*
, Feng Hao

^*Corresponding author for this work

School of Physics and Electronic Science

University of Electronic Science and Technology of China
North University of China
National Center for Nanoscience and Technology

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The commercialization process of metal hybrid perovskite solar cells (PSCs) is hindered by the poor quality of perovskite films, imperfect carrier extraction, and inferior stability. Organic or inorganic molecules have been widely used to overcome these limitations. Herein, 5-(ethylthio)-1H-tetrazole (ETT) is applied for the deposition of perovskite films with high crystallinity and smooth surface. Due to the interaction between the lone pair electrons of tetrazole and Pb²⁺, the surface defects of perovskite films were passivated, thus leading to facilitated charge transport and inhibited carrier recombination. The improved crystallinity and defect passivation enabled a power conversion efficiency over 20% in the ETT-modified inverted MAPbI₃ PSC device, along with notably enhanced moisture stability. Our work provides a feasible strategy for the crystallization modulation and humidity stability enhancement of PSCs.

Original language	English
Article number	127579
Journal	Chemical Engineering Journal
Volume	420
DOIs	https://doi.org/10.1016/j.cej.2020.127579
State	Published - 15 Sep 2021

Keywords

Additive engineering
Defect
Ligand
MAPbI
Stability

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title = "Tetrazole modulated perovskite films for efficient solar cells with improved moisture stability",

abstract = "The commercialization process of metal hybrid perovskite solar cells (PSCs) is hindered by the poor quality of perovskite films, imperfect carrier extraction, and inferior stability. Organic or inorganic molecules have been widely used to overcome these limitations. Herein, 5-(ethylthio)-1H-tetrazole (ETT) is applied for the deposition of perovskite films with high crystallinity and smooth surface. Due to the interaction between the lone pair electrons of tetrazole and Pb2+, the surface defects of perovskite films were passivated, thus leading to facilitated charge transport and inhibited carrier recombination. The improved crystallinity and defect passivation enabled a power conversion efficiency over 20\% in the ETT-modified inverted MAPbI3 PSC device, along with notably enhanced moisture stability. Our work provides a feasible strategy for the crystallization modulation and humidity stability enhancement of PSCs.",

keywords = "Additive engineering, Defect, Ligand, MAPbI, Stability",

author = "Lisha Xie and Xiaoyu Deng and Chengbo Li and Yuying Cui and Zhiyuan Cao and Aili Wang and Shurong Wang and Yuanming Chen and Zhi Wang and Yaqing Liu and Qinye Bao and Liming Ding and Feng Hao",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = sep,

day = "15",

doi = "10.1016/j.cej.2020.127579",

language = "英语",

volume = "420",

journal = "Chemical Engineering Journal",

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TY - JOUR

T1 - Tetrazole modulated perovskite films for efficient solar cells with improved moisture stability

AU - Xie, Lisha

AU - Deng, Xiaoyu

AU - Li, Chengbo

AU - Cui, Yuying

AU - Cao, Zhiyuan

AU - Wang, Aili

AU - Wang, Shurong

AU - Chen, Yuanming

AU - Wang, Zhi

AU - Liu, Yaqing

AU - Bao, Qinye

AU - Ding, Liming

AU - Hao, Feng

PY - 2021/9/15

Y1 - 2021/9/15

N2 - The commercialization process of metal hybrid perovskite solar cells (PSCs) is hindered by the poor quality of perovskite films, imperfect carrier extraction, and inferior stability. Organic or inorganic molecules have been widely used to overcome these limitations. Herein, 5-(ethylthio)-1H-tetrazole (ETT) is applied for the deposition of perovskite films with high crystallinity and smooth surface. Due to the interaction between the lone pair electrons of tetrazole and Pb2+, the surface defects of perovskite films were passivated, thus leading to facilitated charge transport and inhibited carrier recombination. The improved crystallinity and defect passivation enabled a power conversion efficiency over 20% in the ETT-modified inverted MAPbI3 PSC device, along with notably enhanced moisture stability. Our work provides a feasible strategy for the crystallization modulation and humidity stability enhancement of PSCs.

AB - The commercialization process of metal hybrid perovskite solar cells (PSCs) is hindered by the poor quality of perovskite films, imperfect carrier extraction, and inferior stability. Organic or inorganic molecules have been widely used to overcome these limitations. Herein, 5-(ethylthio)-1H-tetrazole (ETT) is applied for the deposition of perovskite films with high crystallinity and smooth surface. Due to the interaction between the lone pair electrons of tetrazole and Pb2+, the surface defects of perovskite films were passivated, thus leading to facilitated charge transport and inhibited carrier recombination. The improved crystallinity and defect passivation enabled a power conversion efficiency over 20% in the ETT-modified inverted MAPbI3 PSC device, along with notably enhanced moisture stability. Our work provides a feasible strategy for the crystallization modulation and humidity stability enhancement of PSCs.

KW - Additive engineering

KW - Defect

KW - Ligand

KW - MAPbI

KW - Stability

UR - https://www.scopus.com/pages/publications/85096164035

U2 - 10.1016/j.cej.2020.127579

DO - 10.1016/j.cej.2020.127579

M3 - 文章

AN - SCOPUS:85096164035

SN - 1385-8947

VL - 420

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

M1 - 127579

ER -

Tetrazole modulated perovskite films for efficient solar cells with improved moisture stability

Abstract

Keywords

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