Unraveling the high performance of tri-iodide perovskite absorber based photovoltaics with a non-polar solvent washing treatment

Kuen Feng Lin; Sheng Hsiung Chang; Kai Hung Wang; Hsin Ming Cheng; Kuo Yuan Chiu; Kun Mu Lee; Sheng Hui Chen; Chun Guey Wu

doi:10.1016/j.solmat.2015.06.002

Unraveling the high performance of tri-iodide perovskite absorber based photovoltaics with a non-polar solvent washing treatment

Kuen Feng Lin, Sheng Hsiung Chang, Kai Hung Wang, Hsin Ming Cheng, Kuo Yuan Chiu, Kun Mu Lee, Sheng Hui Chen, Chun Guey Wu

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

70 Scopus citations

Abstract

A comprehensive study was carried out to understand the formation of a crystalline tri-iodide perovskite absorber (TPA) on top of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Scanning electron microscopy, two-dimensional X-ray diffraction and nanosecond time-resolved photoluminescence were used to explore the correlation between the surface morphology and the exciton lifetime in TPA fabricated with and without the in-situ toluene washing treatment. The toluene washing treatment decreases the crystallinity (exciton lifetime) of TPA and improves the TPA coverage on the non-crystalline PEDOT:PSS surface. The high average power conversion efficiency (PCE) of 10.61% achieved can be explained as due to the efficient exciton dissociation at the interface between the TPA and the PEDOT:PSS. The experimental results show that the PCE can be further improved when the crystallinity of TPA and the TPA coverage on PEDOT:PSS are simultaneously optimized.

Original language	English
Pages (from-to)	309-314
Number of pages	6
Journal	Solar Energy Materials and Solar Cells
Volume	141
DOIs	https://doi.org/10.1016/j.solmat.2015.06.002
State	Published - 23 Jun 2015

Keywords

2D XRD
Photovoltaics
Tri-iodide perovskite film

UN SDGs

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

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10.1016/j.solmat.2015.06.002

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title = "Unraveling the high performance of tri-iodide perovskite absorber based photovoltaics with a non-polar solvent washing treatment",

abstract = "A comprehensive study was carried out to understand the formation of a crystalline tri-iodide perovskite absorber (TPA) on top of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Scanning electron microscopy, two-dimensional X-ray diffraction and nanosecond time-resolved photoluminescence were used to explore the correlation between the surface morphology and the exciton lifetime in TPA fabricated with and without the in-situ toluene washing treatment. The toluene washing treatment decreases the crystallinity (exciton lifetime) of TPA and improves the TPA coverage on the non-crystalline PEDOT:PSS surface. The high average power conversion efficiency (PCE) of 10.61% achieved can be explained as due to the efficient exciton dissociation at the interface between the TPA and the PEDOT:PSS. The experimental results show that the PCE can be further improved when the crystallinity of TPA and the TPA coverage on PEDOT:PSS are simultaneously optimized.",

keywords = "2D XRD, Photovoltaics, Tri-iodide perovskite film",

author = "Lin, {Kuen Feng} and Chang, {Sheng Hsiung} and Wang, {Kai Hung} and Cheng, {Hsin Ming} and Chiu, {Kuo Yuan} and Lee, {Kun Mu} and Chen, {Sheng Hui} and Wu, {Chun Guey}",

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doi = "10.1016/j.solmat.2015.06.002",

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T1 - Unraveling the high performance of tri-iodide perovskite absorber based photovoltaics with a non-polar solvent washing treatment

AU - Lin, Kuen Feng

AU - Chang, Sheng Hsiung

AU - Wang, Kai Hung

AU - Cheng, Hsin Ming

AU - Chiu, Kuo Yuan

AU - Lee, Kun Mu

AU - Chen, Sheng Hui

AU - Wu, Chun Guey

PY - 2015/6/23

Y1 - 2015/6/23

N2 - A comprehensive study was carried out to understand the formation of a crystalline tri-iodide perovskite absorber (TPA) on top of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Scanning electron microscopy, two-dimensional X-ray diffraction and nanosecond time-resolved photoluminescence were used to explore the correlation between the surface morphology and the exciton lifetime in TPA fabricated with and without the in-situ toluene washing treatment. The toluene washing treatment decreases the crystallinity (exciton lifetime) of TPA and improves the TPA coverage on the non-crystalline PEDOT:PSS surface. The high average power conversion efficiency (PCE) of 10.61% achieved can be explained as due to the efficient exciton dissociation at the interface between the TPA and the PEDOT:PSS. The experimental results show that the PCE can be further improved when the crystallinity of TPA and the TPA coverage on PEDOT:PSS are simultaneously optimized.

AB - A comprehensive study was carried out to understand the formation of a crystalline tri-iodide perovskite absorber (TPA) on top of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Scanning electron microscopy, two-dimensional X-ray diffraction and nanosecond time-resolved photoluminescence were used to explore the correlation between the surface morphology and the exciton lifetime in TPA fabricated with and without the in-situ toluene washing treatment. The toluene washing treatment decreases the crystallinity (exciton lifetime) of TPA and improves the TPA coverage on the non-crystalline PEDOT:PSS surface. The high average power conversion efficiency (PCE) of 10.61% achieved can be explained as due to the efficient exciton dissociation at the interface between the TPA and the PEDOT:PSS. The experimental results show that the PCE can be further improved when the crystallinity of TPA and the TPA coverage on PEDOT:PSS are simultaneously optimized.

KW - 2D XRD

KW - Photovoltaics

KW - Tri-iodide perovskite film

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U2 - 10.1016/j.solmat.2015.06.002

DO - 10.1016/j.solmat.2015.06.002

M3 - 期刊論文

AN - SCOPUS:84935029378

SN - 0927-0248

VL - 141

SP - 309

EP - 314

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Unraveling the high performance of tri-iodide perovskite absorber based photovoltaics with a non-polar solvent washing treatment

Abstract

Keywords

UN SDGs

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