Influence of Hole Transport Layers/Perovskite Interfaces on the Hysteresis Behavior of Inverted Perovskite Solar Cells

Jie Liu; Xingtian Yin; Yuxiao Guo; Meidan Que; Jing Chen; Zhong Chen; Wenxiu Que

doi:10.1021/acsaem.0c00612

Influence of Hole Transport Layers/Perovskite Interfaces on the Hysteresis Behavior of Inverted Perovskite Solar Cells

Jie Liu
, Xingtian Yin
, Yuxiao Guo
, Meidan Que
, Jing Chen
, Zhong Chen
, Wenxiu Que

Faculty of Electronic and Information Engineering

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

14 Scopus citations

Abstract

A nickel oxide (NiOx) film is employed to replace poly(2,-dihydrothieno-1,4-dioxin)-poly(styrene sulfonate) (PEDOT:PSS) as the hole transport layer for inverted perovskite solar cells (PSCs) with zinc oxide as the electron transport layer, and we focus on the influence of the interface between the hole transport layer and the perovskite layer on carrier transport. The space-charge-limited current measurement and steady-state and time-resolved photoluminescence (PL) spectra indicate that the perovskite film deposited on the NiOx film has a smaller trap density than that on a PEDOT:PSS film. Additionally, the enhanced PL intensity and longer carrier lifetime imply that the perovskite film deposited on the NiOx film has poor carrier extraction efficiency, which likely results from the vast carrier accumulation at the interface. The NiOx-based PSCs show a reduced hysteresis behavior compared to the PEDOT:PSS-based PSCs, which implies that reducing the trap density in the perovskite film likely contributes more to reducing the hysteresis behavior than reducing carrier accumulation at the interface.

Original language	English
Pages (from-to)	6391-6399
Number of pages	9
Journal	ACS Applied Energy Materials
Volume	3
Issue number	7
DOIs	https://doi.org/10.1021/acsaem.0c00612
State	Published - 27 Jul 2020

Keywords

hysteresis
interfacial barrier
NiO
PEDOT:PSS
trap states

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10.1021/acsaem.0c00612

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@article{bed00ad261ee4e218b942a34f2781fd0,

title = "Influence of Hole Transport Layers/Perovskite Interfaces on the Hysteresis Behavior of Inverted Perovskite Solar Cells",

abstract = "A nickel oxide (NiOx) film is employed to replace poly(2,-dihydrothieno-1,4-dioxin)-poly(styrene sulfonate) (PEDOT:PSS) as the hole transport layer for inverted perovskite solar cells (PSCs) with zinc oxide as the electron transport layer, and we focus on the influence of the interface between the hole transport layer and the perovskite layer on carrier transport. The space-charge-limited current measurement and steady-state and time-resolved photoluminescence (PL) spectra indicate that the perovskite film deposited on the NiOx film has a smaller trap density than that on a PEDOT:PSS film. Additionally, the enhanced PL intensity and longer carrier lifetime imply that the perovskite film deposited on the NiOx film has poor carrier extraction efficiency, which likely results from the vast carrier accumulation at the interface. The NiOx-based PSCs show a reduced hysteresis behavior compared to the PEDOT:PSS-based PSCs, which implies that reducing the trap density in the perovskite film likely contributes more to reducing the hysteresis behavior than reducing carrier accumulation at the interface.",

keywords = "hysteresis, interfacial barrier, NiO, PEDOT:PSS, trap states",

author = "Jie Liu and Xingtian Yin and Yuxiao Guo and Meidan Que and Jing Chen and Zhong Chen and Wenxiu Que",

note = "Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = jul,

day = "27",

doi = "10.1021/acsaem.0c00612",

language = "英语",

volume = "3",

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T1 - Influence of Hole Transport Layers/Perovskite Interfaces on the Hysteresis Behavior of Inverted Perovskite Solar Cells

AU - Liu, Jie

AU - Yin, Xingtian

AU - Guo, Yuxiao

AU - Que, Meidan

AU - Chen, Jing

AU - Chen, Zhong

AU - Que, Wenxiu

PY - 2020/7/27

Y1 - 2020/7/27

N2 - A nickel oxide (NiOx) film is employed to replace poly(2,-dihydrothieno-1,4-dioxin)-poly(styrene sulfonate) (PEDOT:PSS) as the hole transport layer for inverted perovskite solar cells (PSCs) with zinc oxide as the electron transport layer, and we focus on the influence of the interface between the hole transport layer and the perovskite layer on carrier transport. The space-charge-limited current measurement and steady-state and time-resolved photoluminescence (PL) spectra indicate that the perovskite film deposited on the NiOx film has a smaller trap density than that on a PEDOT:PSS film. Additionally, the enhanced PL intensity and longer carrier lifetime imply that the perovskite film deposited on the NiOx film has poor carrier extraction efficiency, which likely results from the vast carrier accumulation at the interface. The NiOx-based PSCs show a reduced hysteresis behavior compared to the PEDOT:PSS-based PSCs, which implies that reducing the trap density in the perovskite film likely contributes more to reducing the hysteresis behavior than reducing carrier accumulation at the interface.

AB - A nickel oxide (NiOx) film is employed to replace poly(2,-dihydrothieno-1,4-dioxin)-poly(styrene sulfonate) (PEDOT:PSS) as the hole transport layer for inverted perovskite solar cells (PSCs) with zinc oxide as the electron transport layer, and we focus on the influence of the interface between the hole transport layer and the perovskite layer on carrier transport. The space-charge-limited current measurement and steady-state and time-resolved photoluminescence (PL) spectra indicate that the perovskite film deposited on the NiOx film has a smaller trap density than that on a PEDOT:PSS film. Additionally, the enhanced PL intensity and longer carrier lifetime imply that the perovskite film deposited on the NiOx film has poor carrier extraction efficiency, which likely results from the vast carrier accumulation at the interface. The NiOx-based PSCs show a reduced hysteresis behavior compared to the PEDOT:PSS-based PSCs, which implies that reducing the trap density in the perovskite film likely contributes more to reducing the hysteresis behavior than reducing carrier accumulation at the interface.

KW - hysteresis

KW - interfacial barrier

KW - NiO

KW - PEDOT:PSS

KW - trap states

UR - https://www.scopus.com/pages/publications/85090394196

U2 - 10.1021/acsaem.0c00612

DO - 10.1021/acsaem.0c00612

M3 - 文章

AN - SCOPUS:85090394196

SN - 2574-0962

VL - 3

SP - 6391

EP - 6399

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 7

ER -

Influence of Hole Transport Layers/Perovskite Interfaces on the Hysteresis Behavior of Inverted Perovskite Solar Cells

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Keywords

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