Improving efficiency of planar hybrid CH3NH3PbI3-xClx perovskite solar cells by isopropanol solvent treatment

Xueyan Wang; Xiaodong Li; Gang Tang; Lixiao Zhao; Wenjun Zhang; Tonggang Jiu; Junfeng Fang

doi:10.1016/j.orgel.2015.05.043

Improving efficiency of planar hybrid CH₃NH₃PbI_3-xCl_x perovskite solar cells by isopropanol solvent treatment

Xueyan Wang
, Xiaodong Li
, Gang Tang
, Lixiao Zhao
, Wenjun Zhang
, Tonggang Jiu
, Junfeng Fang^*

^*Corresponding author for this work

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

45 Scopus citations

Abstract

Hybrid organic/inorganic perovskite planar heterojunction (PHJ) solar cells are becoming one of the most competitive emerging technologies. Here, the devices (ITO/PEDOT:PSS/CH₃NH₃PbI_3-xCl_x/PC₆₀BM/C₆₀/Al) are fabricated based on solution process. A power conversion efficiency (PCE) up to 13.1% was obtained after isopropanol (IPA) solvent treatment, which was 9% improvement than that of the original devices. Photocurrent hysteresis could be reduced to a certain extent by introducing IPA treatment. Solvent treatment can remove as-grown impurities like CH₃NH₃I and defects formed during the device fabrication. We also demonstrated the electrical and optical properties of perovskite films were improved. The addition of IPA-treated facilitates the formation of a relatively smooth PC₆₀BM films. This work provides a very simple but effective strategy to enhance the power conversion efficiency of perovskite solar cells.

Original language	English
Pages (from-to)	205-211
Number of pages	7
Journal	Organic Electronics
Volume	24
DOIs	https://doi.org/10.1016/j.orgel.2015.05.043
State	Published - 10 Jun 2015
Externally published	Yes

Keywords

Isopropanol
Perovskite solar cells
Planar heterojunction
Solvent treatment

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10.1016/j.orgel.2015.05.043

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@article{8b9560e2454949aba6a72cfceb750cfa,

title = "Improving efficiency of planar hybrid CH3NH3PbI3-xClx perovskite solar cells by isopropanol solvent treatment",

abstract = "Hybrid organic/inorganic perovskite planar heterojunction (PHJ) solar cells are becoming one of the most competitive emerging technologies. Here, the devices (ITO/PEDOT:PSS/CH3NH3PbI3-xClx/PC60BM/C60/Al) are fabricated based on solution process. A power conversion efficiency (PCE) up to 13.1\% was obtained after isopropanol (IPA) solvent treatment, which was 9\% improvement than that of the original devices. Photocurrent hysteresis could be reduced to a certain extent by introducing IPA treatment. Solvent treatment can remove as-grown impurities like CH3NH3I and defects formed during the device fabrication. We also demonstrated the electrical and optical properties of perovskite films were improved. The addition of IPA-treated facilitates the formation of a relatively smooth PC60BM films. This work provides a very simple but effective strategy to enhance the power conversion efficiency of perovskite solar cells.",

keywords = "Isopropanol, Perovskite solar cells, Planar heterojunction, Solvent treatment",

author = "Xueyan Wang and Xiaodong Li and Gang Tang and Lixiao Zhao and Wenjun Zhang and Tonggang Jiu and Junfeng Fang",

year = "2015",

month = jun,

day = "10",

doi = "10.1016/j.orgel.2015.05.043",

language = "英语",

volume = "24",

pages = "205--211",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Improving efficiency of planar hybrid CH3NH3PbI3-xClx perovskite solar cells by isopropanol solvent treatment

AU - Wang, Xueyan

AU - Li, Xiaodong

AU - Tang, Gang

AU - Zhao, Lixiao

AU - Zhang, Wenjun

AU - Jiu, Tonggang

AU - Fang, Junfeng

PY - 2015/6/10

Y1 - 2015/6/10

N2 - Hybrid organic/inorganic perovskite planar heterojunction (PHJ) solar cells are becoming one of the most competitive emerging technologies. Here, the devices (ITO/PEDOT:PSS/CH3NH3PbI3-xClx/PC60BM/C60/Al) are fabricated based on solution process. A power conversion efficiency (PCE) up to 13.1% was obtained after isopropanol (IPA) solvent treatment, which was 9% improvement than that of the original devices. Photocurrent hysteresis could be reduced to a certain extent by introducing IPA treatment. Solvent treatment can remove as-grown impurities like CH3NH3I and defects formed during the device fabrication. We also demonstrated the electrical and optical properties of perovskite films were improved. The addition of IPA-treated facilitates the formation of a relatively smooth PC60BM films. This work provides a very simple but effective strategy to enhance the power conversion efficiency of perovskite solar cells.

AB - Hybrid organic/inorganic perovskite planar heterojunction (PHJ) solar cells are becoming one of the most competitive emerging technologies. Here, the devices (ITO/PEDOT:PSS/CH3NH3PbI3-xClx/PC60BM/C60/Al) are fabricated based on solution process. A power conversion efficiency (PCE) up to 13.1% was obtained after isopropanol (IPA) solvent treatment, which was 9% improvement than that of the original devices. Photocurrent hysteresis could be reduced to a certain extent by introducing IPA treatment. Solvent treatment can remove as-grown impurities like CH3NH3I and defects formed during the device fabrication. We also demonstrated the electrical and optical properties of perovskite films were improved. The addition of IPA-treated facilitates the formation of a relatively smooth PC60BM films. This work provides a very simple but effective strategy to enhance the power conversion efficiency of perovskite solar cells.

KW - Isopropanol

KW - Perovskite solar cells

KW - Planar heterojunction

KW - Solvent treatment

UR - https://www.scopus.com/pages/publications/84930938242

U2 - 10.1016/j.orgel.2015.05.043

DO - 10.1016/j.orgel.2015.05.043

M3 - 文章

AN - SCOPUS:84930938242

SN - 1566-1199

VL - 24

SP - 205

EP - 211

JO - Organic Electronics

JF - Organic Electronics

ER -

Improving efficiency of planar hybrid CH₃NH₃PbI_3-xCl_x perovskite solar cells by isopropanol solvent treatment

Abstract

Keywords

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