Highly efficient perovskite solar cells with precursor composition-dependent morphology

Chun Huang; Nianqing Fu; Fangyang Liu; Liangxing Jiang; Xiaojing Hao; Haitao Huang

doi:10.1016/j.solmat.2015.10.032

Highly efficient perovskite solar cells with precursor composition-dependent morphology

Chun Huang, Nianqing Fu, Fangyang Liu, Liangxing Jiang, Xiaojing Hao, Haitao Huang

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

Film uniformity and large crystalline size are indispensable and critical for obtaining high performance planar perovskite solar cells. Perovskite precursor composition plays a key role in the formation of high quality perovskite films. In this work, excess PbCl2is deliberately introduced, and is found to facilitate the solubility of CH3NH3I in concentrated solution at room temperature. The excess PbCl2is found to alter the formation pathway of perovskite thin films. Accordingly, the formation pathway is proposed. Analysis of the perovskite films and associated devices revealed that extremely uniform perovskite films consisting of large grains of several microns can be obtained with a small amount of excess PbCl2. The associated planar perovskite solar cells showed a reliable and reproducible efficiency of 16.1%.

Original language	English
Pages (from-to)	231-237
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	145
DOIs	https://doi.org/10.1016/j.solmat.2015.10.032
Publication status	Published - 1 Feb 2016

Keywords

PbCl 2
Perovskite Solar cell
Precursor composition
Thin film formation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

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

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10.1016/j.solmat.2015.10.032

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title = "Highly efficient perovskite solar cells with precursor composition-dependent morphology",

abstract = "Film uniformity and large crystalline size are indispensable and critical for obtaining high performance planar perovskite solar cells. Perovskite precursor composition plays a key role in the formation of high quality perovskite films. In this work, excess PbCl2is deliberately introduced, and is found to facilitate the solubility of CH3NH3I in concentrated solution at room temperature. The excess PbCl2is found to alter the formation pathway of perovskite thin films. Accordingly, the formation pathway is proposed. Analysis of the perovskite films and associated devices revealed that extremely uniform perovskite films consisting of large grains of several microns can be obtained with a small amount of excess PbCl2. The associated planar perovskite solar cells showed a reliable and reproducible efficiency of 16.1%.",

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T1 - Highly efficient perovskite solar cells with precursor composition-dependent morphology

AU - Huang, Chun

AU - Fu, Nianqing

AU - Liu, Fangyang

AU - Jiang, Liangxing

AU - Hao, Xiaojing

AU - Huang, Haitao

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Film uniformity and large crystalline size are indispensable and critical for obtaining high performance planar perovskite solar cells. Perovskite precursor composition plays a key role in the formation of high quality perovskite films. In this work, excess PbCl2is deliberately introduced, and is found to facilitate the solubility of CH3NH3I in concentrated solution at room temperature. The excess PbCl2is found to alter the formation pathway of perovskite thin films. Accordingly, the formation pathway is proposed. Analysis of the perovskite films and associated devices revealed that extremely uniform perovskite films consisting of large grains of several microns can be obtained with a small amount of excess PbCl2. The associated planar perovskite solar cells showed a reliable and reproducible efficiency of 16.1%.

AB - Film uniformity and large crystalline size are indispensable and critical for obtaining high performance planar perovskite solar cells. Perovskite precursor composition plays a key role in the formation of high quality perovskite films. In this work, excess PbCl2is deliberately introduced, and is found to facilitate the solubility of CH3NH3I in concentrated solution at room temperature. The excess PbCl2is found to alter the formation pathway of perovskite thin films. Accordingly, the formation pathway is proposed. Analysis of the perovskite films and associated devices revealed that extremely uniform perovskite films consisting of large grains of several microns can be obtained with a small amount of excess PbCl2. The associated planar perovskite solar cells showed a reliable and reproducible efficiency of 16.1%.

KW - PbCl 2

KW - Perovskite Solar cell

KW - Precursor composition

KW - Thin film formation

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U2 - 10.1016/j.solmat.2015.10.032

DO - 10.1016/j.solmat.2015.10.032

M3 - Journal article

SN - 0927-0248

VL - 145

SP - 231

EP - 237

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Highly efficient perovskite solar cells with precursor composition-dependent morphology

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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