Efficient planar heterojunction perovskite solar cells with Li-doped compact TiO2 layer

Detao Liu; Shibin Li; Peng Zhang; Yafei Wang; Rui Zhang; Hojjatollah Sarvari; Feng Wang; Jiang Wu; Zhiming Wang; Zhi David Chen

doi:10.1016/j.nanoen.2016.11.028

Efficient planar heterojunction perovskite solar cells with Li-doped compact TiO₂ layer

Detao Liu, Shibin Li, Peng Zhang, Yafei Wang, Rui Zhang, Hojjatollah Sarvari, Feng Wang, Jiang Wu, Zhiming Wang, Zhi David Chen

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

222 Scopus citations

Abstract

Perovskite solar cells (PSCs) have been developed rapidly in recent time, and efficient planar PSCs are regarded as the most promising alternative to the Si solar cells. In this study, we demonstrated that Li-doping of compact TiO₂ can reduce the density of electron traps and increase the conductivity of the electron transport layer (ETL) of PSCs. Due to the improved electronic property of ETL, the Li-doped compact TiO₂ based planar heterojunction PSCs exhibit negligible hysteretic J-V behavior. Comparing with the undoped compact TiO₂ based PSCs, the power conversion efficiency (PCE) of the Li-doped compact TiO₂ film based PSCs is improved from 14.2% to 17.1%. Fabrication of highly efficient planar PSCs provides a pathway for commercialization of PSCs.

Original language	English
Pages (from-to)	462-468
Number of pages	7
Journal	Nano Energy
Volume	31
DOIs	https://doi.org/10.1016/j.nanoen.2016.11.028
State	Published - Jan 1 2017

Bibliographical note

Funding Information:
This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026 , 61371046 , 61421002 , 6157031208 , 61471085 , and National Higher-education Institution General Research and Development Fund ( ZYGX2014J044 ), Projects of International Cooperation of Sichuan Province (No. 2014HH0041 ). This work was also partially supported by University of Kentucky.

Publisher Copyright:
© 2016 Elsevier Ltd

Keywords

CHNHPbI
Less- hysteresis
Li-doping TiO
Planar heterojunction perovskite solar cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Materials Science (all)
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.nanoen.2016.11.028

Cite this

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title = "Efficient planar heterojunction perovskite solar cells with Li-doped compact TiO2 layer",

abstract = "Perovskite solar cells (PSCs) have been developed rapidly in recent time, and efficient planar PSCs are regarded as the most promising alternative to the Si solar cells. In this study, we demonstrated that Li-doping of compact TiO2 can reduce the density of electron traps and increase the conductivity of the electron transport layer (ETL) of PSCs. Due to the improved electronic property of ETL, the Li-doped compact TiO2 based planar heterojunction PSCs exhibit negligible hysteretic J-V behavior. Comparing with the undoped compact TiO2 based PSCs, the power conversion efficiency (PCE) of the Li-doped compact TiO2 film based PSCs is improved from 14.2% to 17.1%. Fabrication of highly efficient planar PSCs provides a pathway for commercialization of PSCs.",

keywords = "CHNHPbI, Less- hysteresis, Li-doping TiO, Planar heterojunction perovskite solar cells",

author = "Detao Liu and Shibin Li and Peng Zhang and Yafei Wang and Rui Zhang and Hojjatollah Sarvari and Feng Wang and Jiang Wu and Zhiming Wang and Chen, {Zhi David}",

note = "Funding Information: This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026 , 61371046 , 61421002 , 6157031208 , 61471085 , and National Higher-education Institution General Research and Development Fund ( ZYGX2014J044 ), Projects of International Cooperation of Sichuan Province (No. 2014HH0041 ). This work was also partially supported by University of Kentucky. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd",

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AU - Liu, Detao

AU - Li, Shibin

AU - Zhang, Peng

AU - Wang, Yafei

AU - Zhang, Rui

AU - Sarvari, Hojjatollah

AU - Wang, Feng

AU - Wu, Jiang

AU - Wang, Zhiming

AU - Chen, Zhi David

N1 - Funding Information: This work was supported by National Natural Science Foundation of China under Grant Nos. 61474016 and 61405026 , 61371046 , 61421002 , 6157031208 , 61471085 , and National Higher-education Institution General Research and Development Fund ( ZYGX2014J044 ), Projects of International Cooperation of Sichuan Province (No. 2014HH0041 ). This work was also partially supported by University of Kentucky. Publisher Copyright: © 2016 Elsevier Ltd

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Perovskite solar cells (PSCs) have been developed rapidly in recent time, and efficient planar PSCs are regarded as the most promising alternative to the Si solar cells. In this study, we demonstrated that Li-doping of compact TiO2 can reduce the density of electron traps and increase the conductivity of the electron transport layer (ETL) of PSCs. Due to the improved electronic property of ETL, the Li-doped compact TiO2 based planar heterojunction PSCs exhibit negligible hysteretic J-V behavior. Comparing with the undoped compact TiO2 based PSCs, the power conversion efficiency (PCE) of the Li-doped compact TiO2 film based PSCs is improved from 14.2% to 17.1%. Fabrication of highly efficient planar PSCs provides a pathway for commercialization of PSCs.

AB - Perovskite solar cells (PSCs) have been developed rapidly in recent time, and efficient planar PSCs are regarded as the most promising alternative to the Si solar cells. In this study, we demonstrated that Li-doping of compact TiO2 can reduce the density of electron traps and increase the conductivity of the electron transport layer (ETL) of PSCs. Due to the improved electronic property of ETL, the Li-doped compact TiO2 based planar heterojunction PSCs exhibit negligible hysteretic J-V behavior. Comparing with the undoped compact TiO2 based PSCs, the power conversion efficiency (PCE) of the Li-doped compact TiO2 film based PSCs is improved from 14.2% to 17.1%. Fabrication of highly efficient planar PSCs provides a pathway for commercialization of PSCs.

KW - CHNHPbI

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KW - Li-doping TiO

KW - Planar heterojunction perovskite solar cells

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