A modified sequential deposition method for fabrication of perovskite solar cells

Hangqian Li; Shibin Li; Yafei Wang; Hojjatollah Sarvari; Peng Zhang; Meijuan Wang; Zhi Chen

doi:10.1016/j.solener.2015.12.045

A modified sequential deposition method for fabrication of perovskite solar cells

Hangqian Li, Shibin Li, Yafei Wang, Hojjatollah Sarvari, Peng Zhang, Meijuan Wang, Zhi Chen

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

43 Scopus citations

Abstract

In this paper, the important role of perovskites capping layers in the compact-TiO₂/mesoporous-TiO₂/CH₃NH₃PbI₃/HTM/Au solar cells was investigated. The capping layers were prepared by controlling the concentration of PbI₂ solutions, pre-coating in CH₃NH₃I solution, the reaction temperature, and the dipping time in the sequential deposition process. The results of X-ray diffraction (XRD) spectra revealed that there was no PbI₂ remains observed in the perovskite crystal structure, indicating that PbI₂ was converted into CH₃NH₃PbI₃ completely. The morphologies of the capping layers are studied by scanning electron microscopy (SEM). Furthermore, organic-inorganic hybrid perovskite solar cells fabricated using the continuous and compact perovskite capping layers exhibit power conversion efficiency of 12.9% and photocurrents up to 19.4mAcm^-2.

Original language	English
Pages (from-to)	243-251
Number of pages	9
Journal	Solar Energy
Volume	126
DOIs	https://doi.org/10.1016/j.solener.2015.12.045
State	Published - Mar 1 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier Ltd.

Keywords

Capping layer
Modified sequential deposition
Perovskite solar cell
Pre-coating

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

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10.1016/j.solener.2015.12.045

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title = "A modified sequential deposition method for fabrication of perovskite solar cells",

abstract = "In this paper, the important role of perovskites capping layers in the compact-TiO2/mesoporous-TiO2/CH3NH3PbI3/HTM/Au solar cells was investigated. The capping layers were prepared by controlling the concentration of PbI2 solutions, pre-coating in CH3NH3I solution, the reaction temperature, and the dipping time in the sequential deposition process. The results of X-ray diffraction (XRD) spectra revealed that there was no PbI2 remains observed in the perovskite crystal structure, indicating that PbI2 was converted into CH3NH3PbI3 completely. The morphologies of the capping layers are studied by scanning electron microscopy (SEM). Furthermore, organic-inorganic hybrid perovskite solar cells fabricated using the continuous and compact perovskite capping layers exhibit power conversion efficiency of 12.9% and photocurrents up to 19.4mAcm-2.",

keywords = "Capping layer, Modified sequential deposition, Perovskite solar cell, Pre-coating",

author = "Hangqian Li and Shibin Li and Yafei Wang and Hojjatollah Sarvari and Peng Zhang and Meijuan Wang and Zhi Chen",

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doi = "10.1016/j.solener.2015.12.045",

language = "English",

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T1 - A modified sequential deposition method for fabrication of perovskite solar cells

AU - Li, Hangqian

AU - Li, Shibin

AU - Wang, Yafei

AU - Sarvari, Hojjatollah

AU - Zhang, Peng

AU - Wang, Meijuan

AU - Chen, Zhi

PY - 2016/3/1

Y1 - 2016/3/1

N2 - In this paper, the important role of perovskites capping layers in the compact-TiO2/mesoporous-TiO2/CH3NH3PbI3/HTM/Au solar cells was investigated. The capping layers were prepared by controlling the concentration of PbI2 solutions, pre-coating in CH3NH3I solution, the reaction temperature, and the dipping time in the sequential deposition process. The results of X-ray diffraction (XRD) spectra revealed that there was no PbI2 remains observed in the perovskite crystal structure, indicating that PbI2 was converted into CH3NH3PbI3 completely. The morphologies of the capping layers are studied by scanning electron microscopy (SEM). Furthermore, organic-inorganic hybrid perovskite solar cells fabricated using the continuous and compact perovskite capping layers exhibit power conversion efficiency of 12.9% and photocurrents up to 19.4mAcm-2.

AB - In this paper, the important role of perovskites capping layers in the compact-TiO2/mesoporous-TiO2/CH3NH3PbI3/HTM/Au solar cells was investigated. The capping layers were prepared by controlling the concentration of PbI2 solutions, pre-coating in CH3NH3I solution, the reaction temperature, and the dipping time in the sequential deposition process. The results of X-ray diffraction (XRD) spectra revealed that there was no PbI2 remains observed in the perovskite crystal structure, indicating that PbI2 was converted into CH3NH3PbI3 completely. The morphologies of the capping layers are studied by scanning electron microscopy (SEM). Furthermore, organic-inorganic hybrid perovskite solar cells fabricated using the continuous and compact perovskite capping layers exhibit power conversion efficiency of 12.9% and photocurrents up to 19.4mAcm-2.

KW - Capping layer

KW - Modified sequential deposition

KW - Perovskite solar cell

KW - Pre-coating

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DO - 10.1016/j.solener.2015.12.045

M3 - Article

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SN - 0038-092X

VL - 126

SP - 243

EP - 251

JO - Solar Energy

JF - Solar Energy

ER -

A modified sequential deposition method for fabrication of perovskite solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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