Monolithic perovskite/Si tandem solar cells exceeding 22% efficiency via optimizing top cell absorber

Zhiwen Qiu; Ziqi Xu; Nengxu Li; Ning Zhou; Yihua Chen; Xingxing Wan; Jialiang Liu; Ning Li; Xiaotao Hao; Pengqing Bi; Qi Chen; Bingqiang Cao; Huanping Zhou

doi:10.1016/j.nanoen.2018.09.052

Monolithic perovskite/Si tandem solar cells exceeding 22% efficiency via optimizing top cell absorber

Zhiwen Qiu, Ziqi Xu, Nengxu Li, Ning Zhou, Yihua Chen, Xingxing Wan, Jialiang Liu, Ning Li, Xiaotao Hao, Pengqing Bi, Qi Chen^*, Bingqiang Cao, Huanping Zhou

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

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

92 Citations (Scopus)

Abstract

Among all tandem photovoltaic (PV) techniques, the perovskite/Si tandem is of particular interest as it capitalizes the mature silicon industry with decades of experience. Photo-current matching between two sub-cells is a prerequisite to achieve high efficiency in monolithic tandem cells. Here we report a low-temperature solution process for efficient perovskite/Si tandem solar cell. A highly-efficient perovskite/Si monolithic tandem cell is constructed by adjusting the electrical and optical properties of electron transport layer, and optimizing the bandgap and the optical density of perovskite absorber. With the optimized condition, the tandem cell with 1.69 eV bandgap of the perovskite absorber delivers a power conversion efficiency (PCE) of 22.22%. The steady state efficiency output at 1.42 V could reach over 20.6% over 200 s illumination. In addition, the stability of perovskite/Si two-terminal tandem devices is promising, which retains more than 85% of its original efficiency after 500 h stability test.

Original language	English
Pages (from-to)	798-807
Number of pages	10
Journal	Nano Energy
Volume	53
DOIs	https://doi.org/10.1016/j.nanoen.2018.09.052
Publication status	Published - Nov 2018

Keywords

Current match
Perovskite
Silicon
Tandem solar cell

UN SDGs

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

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10.1016/j.nanoen.2018.09.052

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title = "Monolithic perovskite/Si tandem solar cells exceeding 22% efficiency via optimizing top cell absorber",

abstract = "Among all tandem photovoltaic (PV) techniques, the perovskite/Si tandem is of particular interest as it capitalizes the mature silicon industry with decades of experience. Photo-current matching between two sub-cells is a prerequisite to achieve high efficiency in monolithic tandem cells. Here we report a low-temperature solution process for efficient perovskite/Si tandem solar cell. A highly-efficient perovskite/Si monolithic tandem cell is constructed by adjusting the electrical and optical properties of electron transport layer, and optimizing the bandgap and the optical density of perovskite absorber. With the optimized condition, the tandem cell with 1.69 eV bandgap of the perovskite absorber delivers a power conversion efficiency (PCE) of 22.22%. The steady state efficiency output at 1.42 V could reach over 20.6% over 200 s illumination. In addition, the stability of perovskite/Si two-terminal tandem devices is promising, which retains more than 85% of its original efficiency after 500 h stability test.",

keywords = "Current match, Perovskite, Silicon, Tandem solar cell",

author = "Zhiwen Qiu and Ziqi Xu and Nengxu Li and Ning Zhou and Yihua Chen and Xingxing Wan and Jialiang Liu and Ning Li and Xiaotao Hao and Pengqing Bi and Qi Chen and Bingqiang Cao and Huanping Zhou",

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year = "2018",

month = nov,

doi = "10.1016/j.nanoen.2018.09.052",

language = "English",

volume = "53",

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T1 - Monolithic perovskite/Si tandem solar cells exceeding 22% efficiency via optimizing top cell absorber

AU - Qiu, Zhiwen

AU - Xu, Ziqi

AU - Li, Nengxu

AU - Zhou, Ning

AU - Chen, Yihua

AU - Wan, Xingxing

AU - Liu, Jialiang

AU - Li, Ning

AU - Hao, Xiaotao

AU - Bi, Pengqing

AU - Chen, Qi

AU - Cao, Bingqiang

AU - Zhou, Huanping

PY - 2018/11

Y1 - 2018/11

N2 - Among all tandem photovoltaic (PV) techniques, the perovskite/Si tandem is of particular interest as it capitalizes the mature silicon industry with decades of experience. Photo-current matching between two sub-cells is a prerequisite to achieve high efficiency in monolithic tandem cells. Here we report a low-temperature solution process for efficient perovskite/Si tandem solar cell. A highly-efficient perovskite/Si monolithic tandem cell is constructed by adjusting the electrical and optical properties of electron transport layer, and optimizing the bandgap and the optical density of perovskite absorber. With the optimized condition, the tandem cell with 1.69 eV bandgap of the perovskite absorber delivers a power conversion efficiency (PCE) of 22.22%. The steady state efficiency output at 1.42 V could reach over 20.6% over 200 s illumination. In addition, the stability of perovskite/Si two-terminal tandem devices is promising, which retains more than 85% of its original efficiency after 500 h stability test.

AB - Among all tandem photovoltaic (PV) techniques, the perovskite/Si tandem is of particular interest as it capitalizes the mature silicon industry with decades of experience. Photo-current matching between two sub-cells is a prerequisite to achieve high efficiency in monolithic tandem cells. Here we report a low-temperature solution process for efficient perovskite/Si tandem solar cell. A highly-efficient perovskite/Si monolithic tandem cell is constructed by adjusting the electrical and optical properties of electron transport layer, and optimizing the bandgap and the optical density of perovskite absorber. With the optimized condition, the tandem cell with 1.69 eV bandgap of the perovskite absorber delivers a power conversion efficiency (PCE) of 22.22%. The steady state efficiency output at 1.42 V could reach over 20.6% over 200 s illumination. In addition, the stability of perovskite/Si two-terminal tandem devices is promising, which retains more than 85% of its original efficiency after 500 h stability test.

KW - Current match

KW - Perovskite

KW - Silicon

KW - Tandem solar cell

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U2 - 10.1016/j.nanoen.2018.09.052

DO - 10.1016/j.nanoen.2018.09.052

M3 - Article

AN - SCOPUS:85053844222

SN - 2211-2855

VL - 53

SP - 798

EP - 807

JO - Nano Energy

JF - Nano Energy

ER -

Monolithic perovskite/Si tandem solar cells exceeding 22% efficiency via optimizing top cell absorber

Abstract

Keywords

UN SDGs

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