Efficient carbon-based planar CsPbBr3 perovskite solar cells with Li-doped amorphous Nb2O5 layer

Fei Zhao; Yixin Guo; Xiang Wang; Jiahua Tao; Zeng Li; Dongliang Zheng; Jinchun Jiang; Zhigao Hu; Junhao Chu

doi:10.1016/j.jallcom.2020.155984

Efficient carbon-based planar CsPbBr₃ perovskite solar cells with Li-doped amorphous Nb₂O₅ layer

Fei Zhao
, Yixin Guo
, Xiang Wang
, Jiahua Tao
, Zeng Li
, Dongliang Zheng
, Jinchun Jiang^*
, Zhigao Hu
, Junhao Chu

^*Corresponding author for this work

School of Physics and Electronic Science

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

35 Scopus citations

Abstract

Facile electron injection and extraction are two important attributes desired in electron transportation layer (ETL) to improve the power conversion efficiency (PCE) of planar CsPbBr₃ perovskite solar cell (PSC). Here, it is demonstrated that Li-doping of amorphous compact Nb₂O₅ (Li: Nb₂O₅) can effectively increase the electronic conductivity and facilitate the charge extraction with low recombination. Comparing with the PSC with Nb₂O₅ ETL, the PCE of the Li: Nb₂O₅-based PSC is enhanced from 5.79% to 7.06%. Furthermore, the Li: Nb₂O₅-based CsPbBr₃ PSC exhibits a fabulous stability when exposed in air with moisture of ∼40% for 60 days. This work shows that ion doping provides new opportunities for preparing effective ETLs and high-performance inorganic PSCs.

Original language	English
Article number	155984
Journal	Journal of Alloys and Compounds
Volume	842
DOIs	https://doi.org/10.1016/j.jallcom.2020.155984
State	Published - 25 Nov 2020

Keywords

CsPbBr planar perovskite solar cells
Electron transportation layer
Li-doping amorphous NbO
Optoelectronic properties

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10.1016/j.jallcom.2020.155984

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@article{691fdde49396447f870b07e38492067c,

title = "Efficient carbon-based planar CsPbBr3 perovskite solar cells with Li-doped amorphous Nb2O5 layer",

abstract = "Facile electron injection and extraction are two important attributes desired in electron transportation layer (ETL) to improve the power conversion efficiency (PCE) of planar CsPbBr3 perovskite solar cell (PSC). Here, it is demonstrated that Li-doping of amorphous compact Nb2O5 (Li: Nb2O5) can effectively increase the electronic conductivity and facilitate the charge extraction with low recombination. Comparing with the PSC with Nb2O5 ETL, the PCE of the Li: Nb2O5-based PSC is enhanced from 5.79\% to 7.06\%. Furthermore, the Li: Nb2O5-based CsPbBr3 PSC exhibits a fabulous stability when exposed in air with moisture of ∼40\% for 60 days. This work shows that ion doping provides new opportunities for preparing effective ETLs and high-performance inorganic PSCs.",

keywords = "CsPbBr planar perovskite solar cells, Electron transportation layer, Li-doping amorphous NbO, Optoelectronic properties",

author = "Fei Zhao and Yixin Guo and Xiang Wang and Jiahua Tao and Zeng Li and Dongliang Zheng and Jinchun Jiang and Zhigao Hu and Junhao Chu",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = nov,

day = "25",

doi = "10.1016/j.jallcom.2020.155984",

language = "英语",

volume = "842",

journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Efficient carbon-based planar CsPbBr3 perovskite solar cells with Li-doped amorphous Nb2O5 layer

AU - Zhao, Fei

AU - Guo, Yixin

AU - Wang, Xiang

AU - Tao, Jiahua

AU - Li, Zeng

AU - Zheng, Dongliang

AU - Jiang, Jinchun

AU - Hu, Zhigao

AU - Chu, Junhao

PY - 2020/11/25

Y1 - 2020/11/25

N2 - Facile electron injection and extraction are two important attributes desired in electron transportation layer (ETL) to improve the power conversion efficiency (PCE) of planar CsPbBr3 perovskite solar cell (PSC). Here, it is demonstrated that Li-doping of amorphous compact Nb2O5 (Li: Nb2O5) can effectively increase the electronic conductivity and facilitate the charge extraction with low recombination. Comparing with the PSC with Nb2O5 ETL, the PCE of the Li: Nb2O5-based PSC is enhanced from 5.79% to 7.06%. Furthermore, the Li: Nb2O5-based CsPbBr3 PSC exhibits a fabulous stability when exposed in air with moisture of ∼40% for 60 days. This work shows that ion doping provides new opportunities for preparing effective ETLs and high-performance inorganic PSCs.

AB - Facile electron injection and extraction are two important attributes desired in electron transportation layer (ETL) to improve the power conversion efficiency (PCE) of planar CsPbBr3 perovskite solar cell (PSC). Here, it is demonstrated that Li-doping of amorphous compact Nb2O5 (Li: Nb2O5) can effectively increase the electronic conductivity and facilitate the charge extraction with low recombination. Comparing with the PSC with Nb2O5 ETL, the PCE of the Li: Nb2O5-based PSC is enhanced from 5.79% to 7.06%. Furthermore, the Li: Nb2O5-based CsPbBr3 PSC exhibits a fabulous stability when exposed in air with moisture of ∼40% for 60 days. This work shows that ion doping provides new opportunities for preparing effective ETLs and high-performance inorganic PSCs.

KW - CsPbBr planar perovskite solar cells

KW - Electron transportation layer

KW - Li-doping amorphous NbO

KW - Optoelectronic properties

UR - https://www.scopus.com/pages/publications/85088028350

U2 - 10.1016/j.jallcom.2020.155984

DO - 10.1016/j.jallcom.2020.155984

M3 - 文章

AN - SCOPUS:85088028350

SN - 0925-8388

VL - 842

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 155984

ER -

Efficient carbon-based planar CsPbBr₃ perovskite solar cells with Li-doped amorphous Nb₂O₅ layer

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Keywords

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