Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss

You He; Hua Dong; Cong Chen; Feng Hao; Fei Long; Jilin Wang; Chuantian Zuo; Liming Ding

doi:10.1021/acsami.3c10430

Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss

You He
, Hua Dong
, Cong Chen
, Feng Hao
, Fei Long
, Jilin Wang
, Chuantian Zuo
, Liming Ding

Faculty of Electronic and Information Engineering

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

4 Scopus citations

Abstract

The power conversion efficiency (PCE) of perovskite solar cells has improved quickly in the past few years, but the PCE is still much lower than the theoretical limit. The relatively high energy loss (E_loss) is one of the critical factors limiting the PCE. To resolve the above issues, a synergistic modification strategy was used herein to minimize E_loss. RbCl and potassium polyacrylate (K-PAM) were used to modify the SnO₂ layer. Additionally, Pb(Ac)₂ was introduced into PbI₂ to further improve the film quality. The synergistic modification strategy reduced the defects in SnO₂ and perovskite and improved the energy-level alignment, enabling significantly reduced E_loss and enhanced photovoltaic performance. The best PCE of 24.07% was achieved, which was much higher than that of the control device (20.86%). The E_loss was only 0.349 eV for the target device. Good stability was achieved for the cells made using modified SnO₂ and perovskite layers.

Original language	English
Pages (from-to)	51072-51078
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	15
Issue number	44
DOIs	https://doi.org/10.1021/acsami.3c10430
State	Published - 8 Nov 2023

Keywords

defect passivation
energy loss
interfacial modification
perovskite solar cells
two-step method

UN SDGs

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

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10.1021/acsami.3c10430

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@article{fb782e2e9c68450399883e07194a0d8e,

title = "Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss",

abstract = "The power conversion efficiency (PCE) of perovskite solar cells has improved quickly in the past few years, but the PCE is still much lower than the theoretical limit. The relatively high energy loss (Eloss) is one of the critical factors limiting the PCE. To resolve the above issues, a synergistic modification strategy was used herein to minimize Eloss. RbCl and potassium polyacrylate (K-PAM) were used to modify the SnO2 layer. Additionally, Pb(Ac)2 was introduced into PbI2 to further improve the film quality. The synergistic modification strategy reduced the defects in SnO2 and perovskite and improved the energy-level alignment, enabling significantly reduced Eloss and enhanced photovoltaic performance. The best PCE of 24.07\% was achieved, which was much higher than that of the control device (20.86\%). The Eloss was only 0.349 eV for the target device. Good stability was achieved for the cells made using modified SnO2 and perovskite layers.",

keywords = "defect passivation, energy loss, interfacial modification, perovskite solar cells, two-step method",

author = "You He and Hua Dong and Cong Chen and Feng Hao and Fei Long and Jilin Wang and Chuantian Zuo and Liming Ding",

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society.",

year = "2023",

month = nov,

day = "8",

doi = "10.1021/acsami.3c10430",

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TY - JOUR

T1 - Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss

AU - He, You

AU - Dong, Hua

AU - Chen, Cong

AU - Hao, Feng

AU - Long, Fei

AU - Wang, Jilin

AU - Zuo, Chuantian

AU - Ding, Liming

PY - 2023/11/8

Y1 - 2023/11/8

N2 - The power conversion efficiency (PCE) of perovskite solar cells has improved quickly in the past few years, but the PCE is still much lower than the theoretical limit. The relatively high energy loss (Eloss) is one of the critical factors limiting the PCE. To resolve the above issues, a synergistic modification strategy was used herein to minimize Eloss. RbCl and potassium polyacrylate (K-PAM) were used to modify the SnO2 layer. Additionally, Pb(Ac)2 was introduced into PbI2 to further improve the film quality. The synergistic modification strategy reduced the defects in SnO2 and perovskite and improved the energy-level alignment, enabling significantly reduced Eloss and enhanced photovoltaic performance. The best PCE of 24.07% was achieved, which was much higher than that of the control device (20.86%). The Eloss was only 0.349 eV for the target device. Good stability was achieved for the cells made using modified SnO2 and perovskite layers.

AB - The power conversion efficiency (PCE) of perovskite solar cells has improved quickly in the past few years, but the PCE is still much lower than the theoretical limit. The relatively high energy loss (Eloss) is one of the critical factors limiting the PCE. To resolve the above issues, a synergistic modification strategy was used herein to minimize Eloss. RbCl and potassium polyacrylate (K-PAM) were used to modify the SnO2 layer. Additionally, Pb(Ac)2 was introduced into PbI2 to further improve the film quality. The synergistic modification strategy reduced the defects in SnO2 and perovskite and improved the energy-level alignment, enabling significantly reduced Eloss and enhanced photovoltaic performance. The best PCE of 24.07% was achieved, which was much higher than that of the control device (20.86%). The Eloss was only 0.349 eV for the target device. Good stability was achieved for the cells made using modified SnO2 and perovskite layers.

KW - defect passivation

KW - energy loss

KW - interfacial modification

KW - perovskite solar cells

KW - two-step method

UR - https://www.scopus.com/pages/publications/85177750718

U2 - 10.1021/acsami.3c10430

DO - 10.1021/acsami.3c10430

M3 - 文章

C2 - 37882603

AN - SCOPUS:85177750718

SN - 1944-8244

VL - 15

SP - 51072

EP - 51078

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 44

ER -

Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss

Abstract

Keywords

UN SDGs

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