Effective hot-air annealing for improving the performance of perovskite solar cells

Yanliang Liu; Insoo Shin; In Wook Hwang; Jihoon Lee; Seungmin Kim; Dal Yong Lee; Seung Hoon Lee; Jae Won Jang; Yun Kyung Jung; Jung Hyun Jeong; Sung Heum Park; Kwang Ho Kim

doi:10.1016/j.solener.2017.03.005

Effective hot-air annealing for improving the performance of perovskite solar cells

Yanliang Liu, Insoo Shin, In Wook Hwang, Jihoon Lee, Seungmin Kim, Dal Yong Lee, Seung Hoon Lee, Jae Won Jang, Yun Kyung Jung, Jung Hyun Jeong, Sung Heum Park, Kwang Ho Kim

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

19 Scopus citations

Abstract

We report a simple and effective method for improving the performance of CH₃NH₃PbI_3−xCl_x perovskite solar cells. By employing a moisture pretreatment (MPT) and a novel hot-air annealing process (HAAP) for preparing the perovskite CH₃NH₃PbI_3-xCl_x film, we could successfully enhance the crystallinity of the CH₃NH₃PbI_3-xCl_x active layer and improve its photon collection properties. This led to a marked improvement in device performance. Solar cells with the structure indium tin oxide/poly(3,4-ethylenedioxythiophene) -poly(styrenesulfonate)/CH₃NH₃PbI_3-xCl_x active layer/[6,6]-phenyl-C61-butyric acid methyl ester/Ca/Al and fabricated using the MPT process and the HAAP method showed significantly improved performance, including higher power conversion efficiency (PCE) and fill factor values than those of the device fabricated conventionally. The PCE increased from 9.05 to 11.87% when the MPT process was used and from 9.05 to 15.55% when both MPT and HAAP were used. Moreover, the HAAP device did not exhibit photocurrent hysteresis, which is always observed in the case of the conventionally fabricated solar cells owing to the charge traps resulting from the low quality of the perovskite film.

Original language	English
Pages (from-to)	359-367
Number of pages	9
Journal	Solar Energy
Volume	146
DOIs	https://doi.org/10.1016/j.solener.2017.03.005
State	Published - 2017
Externally published	Yes

Keywords

Hot-air annealing
Inverted planar perovskite solar cells
Moisture pretreatment
Perovskite film morphology

UN SDGs

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

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10.1016/j.solener.2017.03.005

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@article{0a0c561c78df4c009d0867ca30c18803,

title = "Effective hot-air annealing for improving the performance of perovskite solar cells",

abstract = "We report a simple and effective method for improving the performance of CH3NH3PbI3−xClx perovskite solar cells. By employing a moisture pretreatment (MPT) and a novel hot-air annealing process (HAAP) for preparing the perovskite CH3NH3PbI3-xClx film, we could successfully enhance the crystallinity of the CH3NH3PbI3-xClx active layer and improve its photon collection properties. This led to a marked improvement in device performance. Solar cells with the structure indium tin oxide/poly(3,4-ethylenedioxythiophene) -poly(styrenesulfonate)/CH3NH3PbI3-xClx active layer/[6,6]-phenyl-C61-butyric acid methyl ester/Ca/Al and fabricated using the MPT process and the HAAP method showed significantly improved performance, including higher power conversion efficiency (PCE) and fill factor values than those of the device fabricated conventionally. The PCE increased from 9.05 to 11.87% when the MPT process was used and from 9.05 to 15.55% when both MPT and HAAP were used. Moreover, the HAAP device did not exhibit photocurrent hysteresis, which is always observed in the case of the conventionally fabricated solar cells owing to the charge traps resulting from the low quality of the perovskite film.",

keywords = "Hot-air annealing, Inverted planar perovskite solar cells, Moisture pretreatment, Perovskite film morphology",

author = "Yanliang Liu and Insoo Shin and Hwang, {In Wook} and Jihoon Lee and Seungmin Kim and Lee, {Dal Yong} and Lee, {Seung Hoon} and Jang, {Jae Won} and Jung, {Yun Kyung} and Jeong, {Jung Hyun} and Park, {Sung Heum} and Kim, {Kwang Ho}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

doi = "10.1016/j.solener.2017.03.005",

language = "English",

volume = "146",

pages = "359--367",

journal = "Solar Energy",

issn = "0038-092X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Effective hot-air annealing for improving the performance of perovskite solar cells

AU - Liu, Yanliang

AU - Shin, Insoo

AU - Hwang, In Wook

AU - Lee, Jihoon

AU - Kim, Seungmin

AU - Lee, Dal Yong

AU - Lee, Seung Hoon

AU - Jang, Jae Won

AU - Jung, Yun Kyung

AU - Jeong, Jung Hyun

AU - Park, Sung Heum

AU - Kim, Kwang Ho

PY - 2017

Y1 - 2017

N2 - We report a simple and effective method for improving the performance of CH3NH3PbI3−xClx perovskite solar cells. By employing a moisture pretreatment (MPT) and a novel hot-air annealing process (HAAP) for preparing the perovskite CH3NH3PbI3-xClx film, we could successfully enhance the crystallinity of the CH3NH3PbI3-xClx active layer and improve its photon collection properties. This led to a marked improvement in device performance. Solar cells with the structure indium tin oxide/poly(3,4-ethylenedioxythiophene) -poly(styrenesulfonate)/CH3NH3PbI3-xClx active layer/[6,6]-phenyl-C61-butyric acid methyl ester/Ca/Al and fabricated using the MPT process and the HAAP method showed significantly improved performance, including higher power conversion efficiency (PCE) and fill factor values than those of the device fabricated conventionally. The PCE increased from 9.05 to 11.87% when the MPT process was used and from 9.05 to 15.55% when both MPT and HAAP were used. Moreover, the HAAP device did not exhibit photocurrent hysteresis, which is always observed in the case of the conventionally fabricated solar cells owing to the charge traps resulting from the low quality of the perovskite film.

AB - We report a simple and effective method for improving the performance of CH3NH3PbI3−xClx perovskite solar cells. By employing a moisture pretreatment (MPT) and a novel hot-air annealing process (HAAP) for preparing the perovskite CH3NH3PbI3-xClx film, we could successfully enhance the crystallinity of the CH3NH3PbI3-xClx active layer and improve its photon collection properties. This led to a marked improvement in device performance. Solar cells with the structure indium tin oxide/poly(3,4-ethylenedioxythiophene) -poly(styrenesulfonate)/CH3NH3PbI3-xClx active layer/[6,6]-phenyl-C61-butyric acid methyl ester/Ca/Al and fabricated using the MPT process and the HAAP method showed significantly improved performance, including higher power conversion efficiency (PCE) and fill factor values than those of the device fabricated conventionally. The PCE increased from 9.05 to 11.87% when the MPT process was used and from 9.05 to 15.55% when both MPT and HAAP were used. Moreover, the HAAP device did not exhibit photocurrent hysteresis, which is always observed in the case of the conventionally fabricated solar cells owing to the charge traps resulting from the low quality of the perovskite film.

KW - Hot-air annealing

KW - Inverted planar perovskite solar cells

KW - Moisture pretreatment

KW - Perovskite film morphology

UR - http://www.scopus.com/inward/record.url?scp=85015376756&partnerID=8YFLogxK

U2 - 10.1016/j.solener.2017.03.005

DO - 10.1016/j.solener.2017.03.005

M3 - Article

AN - SCOPUS:85015376756

SN - 0038-092X

VL - 146

SP - 359

EP - 367

JO - Solar Energy

JF - Solar Energy

ER -

Effective hot-air annealing for improving the performance of perovskite solar cells

Abstract

Keywords

UN SDGs

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