Efficient planar perovskite solar cells with improved fill factor via interface engineering with graphene

Xiaojuan Zhao; Leiming Tao; Hao Li; Wenchao Huang; Pengyu Sun; Jun Liu; Shuangshuang Liu; Qiang Sun; Zhifang Cui; Lijie Sun; Yan Shen; Yang Yang; Mingkui Wang

doi:10.1021/acs.nanolett.8b00025

Efficient planar perovskite solar cells with improved fill factor via interface engineering with graphene

Xiaojuan Zhao, Leiming Tao, Hao Li, Wenchao Huang, Pengyu Sun, Jun Liu, Shuangshuang Liu, Qiang Sun, Zhifang Cui, Lijie Sun, Yan Shen, Yang Yang, Mingkui Wang

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

178 Citations (Scopus)

Abstract

Organic-inorganic hybrid lead halide perovskites have been widely investigated in optoelectronics both experimentally and theoretically. The present work incorporates chemically modified graphene into nanocrystal SnO₂ as the electron transporting layer (ETL) for highly efficient planar perovskite solar cells. The modification of SnO₂ with highly conductive two-dimensional naphthalene diimide-graphene can increase surface hydrophobicity and form van der Waals interaction between the surfactant and the organic-inorganic hybrid lead halide perovskite compounds. As a result, highly efficient perovskite solar cells with power conversion efficiency of 20.2% can be achieved with an improved fill factor of 82%, which could be mainly attributed to the augmented charge extraction and transport.

Original language	English
Pages (from-to)	2442-2449
Number of pages	8
Journal	Nano Letters
Volume	18
Issue number	4
DOIs	https://doi.org/10.1021/acs.nanolett.8b00025
Publication status	Published - 11 Apr 2018
Externally published	Yes

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title = "Efficient planar perovskite solar cells with improved fill factor via interface engineering with graphene",

abstract = "Organic-inorganic hybrid lead halide perovskites have been widely investigated in optoelectronics both experimentally and theoretically. The present work incorporates chemically modified graphene into nanocrystal SnO2 as the electron transporting layer (ETL) for highly efficient planar perovskite solar cells. The modification of SnO2 with highly conductive two-dimensional naphthalene diimide-graphene can increase surface hydrophobicity and form van der Waals interaction between the surfactant and the organic-inorganic hybrid lead halide perovskite compounds. As a result, highly efficient perovskite solar cells with power conversion efficiency of 20.2% can be achieved with an improved fill factor of 82%, which could be mainly attributed to the augmented charge extraction and transport.",

author = "Xiaojuan Zhao and Leiming Tao and Hao Li and Wenchao Huang and Pengyu Sun and Jun Liu and Shuangshuang Liu and Qiang Sun and Zhifang Cui and Lijie Sun and Yan Shen and Yang Yang and Mingkui Wang",

year = "2018",

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doi = "10.1021/acs.nanolett.8b00025",

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TY - JOUR

T1 - Efficient planar perovskite solar cells with improved fill factor via interface engineering with graphene

AU - Zhao, Xiaojuan

AU - Tao, Leiming

AU - Li, Hao

AU - Huang, Wenchao

AU - Sun, Pengyu

AU - Liu, Jun

AU - Liu, Shuangshuang

AU - Sun, Qiang

AU - Cui, Zhifang

AU - Sun, Lijie

AU - Shen, Yan

AU - Yang, Yang

AU - Wang, Mingkui

PY - 2018/4/11

Y1 - 2018/4/11

N2 - Organic-inorganic hybrid lead halide perovskites have been widely investigated in optoelectronics both experimentally and theoretically. The present work incorporates chemically modified graphene into nanocrystal SnO2 as the electron transporting layer (ETL) for highly efficient planar perovskite solar cells. The modification of SnO2 with highly conductive two-dimensional naphthalene diimide-graphene can increase surface hydrophobicity and form van der Waals interaction between the surfactant and the organic-inorganic hybrid lead halide perovskite compounds. As a result, highly efficient perovskite solar cells with power conversion efficiency of 20.2% can be achieved with an improved fill factor of 82%, which could be mainly attributed to the augmented charge extraction and transport.

AB - Organic-inorganic hybrid lead halide perovskites have been widely investigated in optoelectronics both experimentally and theoretically. The present work incorporates chemically modified graphene into nanocrystal SnO2 as the electron transporting layer (ETL) for highly efficient planar perovskite solar cells. The modification of SnO2 with highly conductive two-dimensional naphthalene diimide-graphene can increase surface hydrophobicity and form van der Waals interaction between the surfactant and the organic-inorganic hybrid lead halide perovskite compounds. As a result, highly efficient perovskite solar cells with power conversion efficiency of 20.2% can be achieved with an improved fill factor of 82%, which could be mainly attributed to the augmented charge extraction and transport.

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U2 - 10.1021/acs.nanolett.8b00025

DO - 10.1021/acs.nanolett.8b00025

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VL - 18

SP - 2442

EP - 2449

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 4

ER -

Efficient planar perovskite solar cells with improved fill factor via interface engineering with graphene

Abstract

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