Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Bo Chen; Zhengshan Yu; Kong Liu; Xiaopeng Zheng; Ye Liu; Jianwei Shi; Derrek Spronk; Peter N. Rudd; Zachary Holman; Jinsong Huang

doi:10.1016/j.joule.2018.10.003

Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

Bo Chen, Zhengshan Yu, Kong Liu, Xiaopeng Zheng, Ye Liu, Jianwei Shi, Derrek Spronk, Peter N. Rudd, Zachary Holman, Jinsong Huang

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

331 Scopus citations

Abstract

Organic-inorganic halide perovskites are promising semiconductors to mate with silicon in tandem photovoltaic cells due to their solution processability and tunable complementary bandgaps. Herein, we show that a combination of two additives, MACl and MAH ₂ PO ₂ , in the perovskite precursor can significantly improve the grain morphology of wide-bandgap (1.64–1.70 eV) perovskite films, resulting in solar cells with increased photocurrent while reducing the open-circuit voltage deficit to 0.49–0.51 V. The addition of MACl enlarges the grain size, while MAH ₂ PO ₂ reduces non-radiative recombination through passivation of the perovskite grain boundaries, with good synergy of functions from MACl and MAH ₂ PO ₂ . Matching the photocurrent between the two sub-cells in a perovskite/silicon monolithic tandem solar cell by using a bandgap of 1.64 eV for the top cell results in a high tandem V _oc of 1.80 V and improved power conversion efficiency of 25.4%.

Original language	English (US)
Pages (from-to)	177-190
Number of pages	14
Journal	Joule
Volume	3
Issue number	1
DOIs	https://doi.org/10.1016/j.joule.2018.10.003
State	Published - Jan 16 2019

Keywords

additive
grain engineering
perovskite
solar cell
tandem
wide bandgap

ASJC Scopus subject areas

General Energy

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10.1016/j.joule.2018.10.003

Cite this

@article{9165132a339447ac8d5ca3ed78070917,

title = "Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%",

abstract = " Organic-inorganic halide perovskites are promising semiconductors to mate with silicon in tandem photovoltaic cells due to their solution processability and tunable complementary bandgaps. Herein, we show that a combination of two additives, MACl and MAH 2 PO 2 , in the perovskite precursor can significantly improve the grain morphology of wide-bandgap (1.64–1.70 eV) perovskite films, resulting in solar cells with increased photocurrent while reducing the open-circuit voltage deficit to 0.49–0.51 V. The addition of MACl enlarges the grain size, while MAH 2 PO 2 reduces non-radiative recombination through passivation of the perovskite grain boundaries, with good synergy of functions from MACl and MAH 2 PO 2 . Matching the photocurrent between the two sub-cells in a perovskite/silicon monolithic tandem solar cell by using a bandgap of 1.64 eV for the top cell results in a high tandem V oc of 1.80 V and improved power conversion efficiency of 25.4%.",

keywords = "additive, grain engineering, perovskite, solar cell, tandem, wide bandgap",

author = "Bo Chen and Zhengshan Yu and Kong Liu and Xiaopeng Zheng and Ye Liu and Jianwei Shi and Derrek Spronk and Rudd, {Peter N.} and Zachary Holman and Jinsong Huang",

note = "Funding Information: The information, data, or work presented herein is also funded by the US Department of Energy , Office of Energy Efficiency and Renewable Energy , under award number DE-EE0006709, and by the UNC Research Opportunities Initiative through the Center of Hybrid Materials Enabled Electronic Technology. Funding Information: The information, data, or work presented herein is also funded by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, under award number DE-EE0006709, and by the UNC Research Opportunities Initiative through the Center of Hybrid Materials Enabled Electronic Technology. Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",

year = "2019",

month = jan,

day = "16",

doi = "10.1016/j.joule.2018.10.003",

language = "English (US)",

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AU - Chen, Bo

AU - Yu, Zhengshan

AU - Liu, Kong

AU - Zheng, Xiaopeng

AU - Liu, Ye

AU - Shi, Jianwei

AU - Spronk, Derrek

AU - Rudd, Peter N.

AU - Holman, Zachary

AU - Huang, Jinsong

N1 - Funding Information: The information, data, or work presented herein is also funded by the US Department of Energy , Office of Energy Efficiency and Renewable Energy , under award number DE-EE0006709, and by the UNC Research Opportunities Initiative through the Center of Hybrid Materials Enabled Electronic Technology. Funding Information: The information, data, or work presented herein is also funded by the US Department of Energy, Office of Energy Efficiency and Renewable Energy, under award number DE-EE0006709, and by the UNC Research Opportunities Initiative through the Center of Hybrid Materials Enabled Electronic Technology. Publisher Copyright: © 2018 Elsevier Inc.

PY - 2019/1/16

Y1 - 2019/1/16

N2 - Organic-inorganic halide perovskites are promising semiconductors to mate with silicon in tandem photovoltaic cells due to their solution processability and tunable complementary bandgaps. Herein, we show that a combination of two additives, MACl and MAH 2 PO 2 , in the perovskite precursor can significantly improve the grain morphology of wide-bandgap (1.64–1.70 eV) perovskite films, resulting in solar cells with increased photocurrent while reducing the open-circuit voltage deficit to 0.49–0.51 V. The addition of MACl enlarges the grain size, while MAH 2 PO 2 reduces non-radiative recombination through passivation of the perovskite grain boundaries, with good synergy of functions from MACl and MAH 2 PO 2 . Matching the photocurrent between the two sub-cells in a perovskite/silicon monolithic tandem solar cell by using a bandgap of 1.64 eV for the top cell results in a high tandem V oc of 1.80 V and improved power conversion efficiency of 25.4%.

AB - Organic-inorganic halide perovskites are promising semiconductors to mate with silicon in tandem photovoltaic cells due to their solution processability and tunable complementary bandgaps. Herein, we show that a combination of two additives, MACl and MAH 2 PO 2 , in the perovskite precursor can significantly improve the grain morphology of wide-bandgap (1.64–1.70 eV) perovskite films, resulting in solar cells with increased photocurrent while reducing the open-circuit voltage deficit to 0.49–0.51 V. The addition of MACl enlarges the grain size, while MAH 2 PO 2 reduces non-radiative recombination through passivation of the perovskite grain boundaries, with good synergy of functions from MACl and MAH 2 PO 2 . Matching the photocurrent between the two sub-cells in a perovskite/silicon monolithic tandem solar cell by using a bandgap of 1.64 eV for the top cell results in a high tandem V oc of 1.80 V and improved power conversion efficiency of 25.4%.

KW - additive

KW - grain engineering

KW - perovskite

KW - solar cell

KW - tandem

KW - wide bandgap

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Grain Engineering for Perovskite/Silicon Monolithic Tandem Solar Cells with Efficiency of 25.4%

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