Improved morphology control using a modified two-step method for efficient perovskite solar cells

Dongqin Bi; Ahmed M. El-Zohry; Anders Hagfeldt; Gerrit Boschloo

doi:10.1021/am504320h

Improved morphology control using a modified two-step method for efficient perovskite solar cells

Dongqin Bi, Ahmed M. El-Zohry, Anders Hagfeldt, Gerrit Boschloo^*

^*Corresponding author for this work

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

67 Scopus citations

Abstract

A two-step wet chemical synthesis method for methylammonium lead(II) triiodide (CH₃NH₃PbI₃) perovskite is further developed for the preparation of highly reproducible solar cells, with the following structure: fluorine-doped tin oxide (FTO)/TiO₂ (compact)/TiO₂ (mesoporous)/CH₃NH₃PbI₃/spiro-OMeTAD/Ag. The morphology of the perovskite layer could be controlled by careful variation of the processing conditions. Specifically, by modifying the drying process and inclusion of a dichloromethane treatment, more uniform films could be prepared, with longer emission lifetime in the perovskite material and longer electron lifetime in solar cell devices, as well as faster electron transport and enhanced charge collection at the selective contacts. Solar cell efficiencies up to 13.5% were obtained.

Original language	English
Pages (from-to)	18751-18757
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	21
DOIs	https://doi.org/10.1021/am504320h
State	Published - 12 Nov 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 American Chemical Society.

Keywords

dichloromethane
emission lifetime
mesoporous TiO
methylammonium lead(ii) triiodide
photovoltaic
solution-processed semiconductor

ASJC Scopus subject areas

General Materials Science

UN SDGs

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

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10.1021/am504320h

Cite this

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title = "Improved morphology control using a modified two-step method for efficient perovskite solar cells",

abstract = "A two-step wet chemical synthesis method for methylammonium lead(II) triiodide (CH3NH3PbI3) perovskite is further developed for the preparation of highly reproducible solar cells, with the following structure: fluorine-doped tin oxide (FTO)/TiO2 (compact)/TiO2 (mesoporous)/CH3NH3PbI3/spiro-OMeTAD/Ag. The morphology of the perovskite layer could be controlled by careful variation of the processing conditions. Specifically, by modifying the drying process and inclusion of a dichloromethane treatment, more uniform films could be prepared, with longer emission lifetime in the perovskite material and longer electron lifetime in solar cell devices, as well as faster electron transport and enhanced charge collection at the selective contacts. Solar cell efficiencies up to 13.5\% were obtained.",

keywords = "dichloromethane, emission lifetime, mesoporous TiO, methylammonium lead(ii) triiodide, photovoltaic, solution-processed semiconductor",

author = "Dongqin Bi and El-Zohry, \{Ahmed M.\} and Anders Hagfeldt and Gerrit Boschloo",

note = "Publisher Copyright: {\textcopyright} 2014 American Chemical Society.",

year = "2014",

month = nov,

day = "12",

doi = "10.1021/am504320h",

language = "English",

volume = "6",

pages = "18751--18757",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

number = "21",

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TY - JOUR

T1 - Improved morphology control using a modified two-step method for efficient perovskite solar cells

AU - Bi, Dongqin

AU - El-Zohry, Ahmed M.

AU - Hagfeldt, Anders

AU - Boschloo, Gerrit

PY - 2014/11/12

Y1 - 2014/11/12

N2 - A two-step wet chemical synthesis method for methylammonium lead(II) triiodide (CH3NH3PbI3) perovskite is further developed for the preparation of highly reproducible solar cells, with the following structure: fluorine-doped tin oxide (FTO)/TiO2 (compact)/TiO2 (mesoporous)/CH3NH3PbI3/spiro-OMeTAD/Ag. The morphology of the perovskite layer could be controlled by careful variation of the processing conditions. Specifically, by modifying the drying process and inclusion of a dichloromethane treatment, more uniform films could be prepared, with longer emission lifetime in the perovskite material and longer electron lifetime in solar cell devices, as well as faster electron transport and enhanced charge collection at the selective contacts. Solar cell efficiencies up to 13.5% were obtained.

AB - A two-step wet chemical synthesis method for methylammonium lead(II) triiodide (CH3NH3PbI3) perovskite is further developed for the preparation of highly reproducible solar cells, with the following structure: fluorine-doped tin oxide (FTO)/TiO2 (compact)/TiO2 (mesoporous)/CH3NH3PbI3/spiro-OMeTAD/Ag. The morphology of the perovskite layer could be controlled by careful variation of the processing conditions. Specifically, by modifying the drying process and inclusion of a dichloromethane treatment, more uniform films could be prepared, with longer emission lifetime in the perovskite material and longer electron lifetime in solar cell devices, as well as faster electron transport and enhanced charge collection at the selective contacts. Solar cell efficiencies up to 13.5% were obtained.

KW - dichloromethane

KW - emission lifetime

KW - mesoporous TiO

KW - methylammonium lead(ii) triiodide

KW - photovoltaic

KW - solution-processed semiconductor

UR - https://www.scopus.com/pages/publications/84910134166

U2 - 10.1021/am504320h

DO - 10.1021/am504320h

M3 - Article

AN - SCOPUS:84910134166

SN - 1944-8244

VL - 6

SP - 18751

EP - 18757

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 21

ER -

Improved morphology control using a modified two-step method for efficient perovskite solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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