Solution-processed Sr-doped NiOx as hole transport layer for efficient and stable perovskite solar cells

Jiankai Zhang; Wujian Mao; Xian Hou; Jiaji Duan; Jianping Zhou; Sumei Huang; Wei Ou-Yang; Xuehua Zhang; Zhuo Sun; Xiaohong Chen

doi:10.1016/j.solener.2018.10.004

Solution-processed Sr-doped NiO_x as hole transport layer for efficient and stable perovskite solar cells

Jiankai Zhang, Wujian Mao, Xian Hou, Jiaji Duan, Jianping Zhou, Sumei Huang, Wei Ou-Yang, Xuehua Zhang, Zhuo Sun, Xiaohong Chen^*

^*Corresponding author for this work

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

89 Scopus citations

Abstract

Nickel oxide (NiO_x) hole transport layer (HTL)-based planar perovskite solar cells (PSCs) have attracted much attention due to high power conversion efficiency (PCE) and simple processing. In this work, smooth and compact Sr-doped NiO_x films with different Sr doping concentration were successfully prepared through a simple low temperature sol-gel method. The 1 at.% Sr-doped NiO_x HTL-based PSCs exhibited the best performance with PCE of 20.07%, which is greatly higher than PCE of reference NiO_x based PSCs (15.73%). Furthermore, the unencapsulated PSCs based on Sr:NiO_x HTL still retains over 60% of the original PCE value aging for 100 days under ambient air, showing better stability. The superior performance of Sr-doped NiO_x based PSCs is attributed to better electrical conductivity, crystallinity of perovskite film and energy level matching with perovskite layer, which can greatly improve hole transport and extraction abilities and reduce carrier recombination, resulting in high PCE and better stability.

Original language	English
Pages (from-to)	1133-1141
Number of pages	9
Journal	Solar Energy
Volume	174
DOIs	https://doi.org/10.1016/j.solener.2018.10.004
State	Published - 1 Nov 2018
Externally published	Yes

Keywords

Efficiency
Low temperature
NiO
Perovskite solar cells
Sr
Stability

UN SDGs

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

Access to Document

10.1016/j.solener.2018.10.004

Cite this

@article{0afb6a6a596a43c7ab23db70fa73b5c5,

title = "Solution-processed Sr-doped NiOx as hole transport layer for efficient and stable perovskite solar cells",

abstract = "Nickel oxide (NiOx) hole transport layer (HTL)-based planar perovskite solar cells (PSCs) have attracted much attention due to high power conversion efficiency (PCE) and simple processing. In this work, smooth and compact Sr-doped NiOx films with different Sr doping concentration were successfully prepared through a simple low temperature sol-gel method. The 1 at.\% Sr-doped NiOx HTL-based PSCs exhibited the best performance with PCE of 20.07\%, which is greatly higher than PCE of reference NiOx based PSCs (15.73\%). Furthermore, the unencapsulated PSCs based on Sr:NiOx HTL still retains over 60\% of the original PCE value aging for 100 days under ambient air, showing better stability. The superior performance of Sr-doped NiOx based PSCs is attributed to better electrical conductivity, crystallinity of perovskite film and energy level matching with perovskite layer, which can greatly improve hole transport and extraction abilities and reduce carrier recombination, resulting in high PCE and better stability.",

keywords = "Efficiency, Low temperature, NiO, Perovskite solar cells, Sr, Stability",

author = "Jiankai Zhang and Wujian Mao and Xian Hou and Jiaji Duan and Jianping Zhou and Sumei Huang and Wei Ou-Yang and Xuehua Zhang and Zhuo Sun and Xiaohong Chen",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = nov,

day = "1",

doi = "10.1016/j.solener.2018.10.004",

language = "英语",

volume = "174",

pages = "1133--1141",

journal = "Solar Energy",

issn = "0038-092X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Solution-processed Sr-doped NiOx as hole transport layer for efficient and stable perovskite solar cells

AU - Zhang, Jiankai

AU - Mao, Wujian

AU - Hou, Xian

AU - Duan, Jiaji

AU - Zhou, Jianping

AU - Huang, Sumei

AU - Ou-Yang, Wei

AU - Zhang, Xuehua

AU - Sun, Zhuo

AU - Chen, Xiaohong

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Nickel oxide (NiOx) hole transport layer (HTL)-based planar perovskite solar cells (PSCs) have attracted much attention due to high power conversion efficiency (PCE) and simple processing. In this work, smooth and compact Sr-doped NiOx films with different Sr doping concentration were successfully prepared through a simple low temperature sol-gel method. The 1 at.% Sr-doped NiOx HTL-based PSCs exhibited the best performance with PCE of 20.07%, which is greatly higher than PCE of reference NiOx based PSCs (15.73%). Furthermore, the unencapsulated PSCs based on Sr:NiOx HTL still retains over 60% of the original PCE value aging for 100 days under ambient air, showing better stability. The superior performance of Sr-doped NiOx based PSCs is attributed to better electrical conductivity, crystallinity of perovskite film and energy level matching with perovskite layer, which can greatly improve hole transport and extraction abilities and reduce carrier recombination, resulting in high PCE and better stability.

AB - Nickel oxide (NiOx) hole transport layer (HTL)-based planar perovskite solar cells (PSCs) have attracted much attention due to high power conversion efficiency (PCE) and simple processing. In this work, smooth and compact Sr-doped NiOx films with different Sr doping concentration were successfully prepared through a simple low temperature sol-gel method. The 1 at.% Sr-doped NiOx HTL-based PSCs exhibited the best performance with PCE of 20.07%, which is greatly higher than PCE of reference NiOx based PSCs (15.73%). Furthermore, the unencapsulated PSCs based on Sr:NiOx HTL still retains over 60% of the original PCE value aging for 100 days under ambient air, showing better stability. The superior performance of Sr-doped NiOx based PSCs is attributed to better electrical conductivity, crystallinity of perovskite film and energy level matching with perovskite layer, which can greatly improve hole transport and extraction abilities and reduce carrier recombination, resulting in high PCE and better stability.

KW - Efficiency

KW - Low temperature

KW - NiO

KW - Perovskite solar cells

KW - Sr

KW - Stability

UR - https://www.scopus.com/pages/publications/85054578245

U2 - 10.1016/j.solener.2018.10.004

DO - 10.1016/j.solener.2018.10.004

M3 - 文章

AN - SCOPUS:85054578245

SN - 0038-092X

VL - 174

SP - 1133

EP - 1141

JO - Solar Energy

JF - Solar Energy

ER -