Unraveling the multifunctional capabilities of PCBM thin films in inverted-type CH3NH3PbI3 based photovoltaics

Sheng Hsiung Chang; Cheng Chiang Chen; Lung Chien Chen; Chuen Lin Tien; Hsin Ming Cheng; Wei Chen Huang; Hong Yi Lin; Sheng Hui Chen; Chun Guey Wu

doi:10.1016/j.solmat.2017.05.007

Unraveling the multifunctional capabilities of PCBM thin films in inverted-type CH₃NH₃PbI₃ based photovoltaics

Sheng Hsiung Chang, Cheng Chiang Chen, Lung Chien Chen, Chuen Lin Tien, Hsin Ming Cheng, Wei Chen Huang, Hong Yi Lin, Sheng Hui Chen, Chun Guey Wu

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

22 Scopus citations

Abstract

Comprehensive studies were carried out to explore the roles of phenyl-C₆₁-butyric acid methyl ester (PCBM) thin films in inverted-type CH₃NH₃PbI₃ (MAPbI₃) based photovoltaics, including the surface morphologies, transmittance spectra, photoluminescence spectra, X-ray diffraction (XRD) patterns, Raman scattering spectra and thin-film residual stress analysis. The reduction in the photoluminescence line width indicates that the crystallinity of the MAPbI₃ thin film can be increased by covering it with the PCBM thin film. The XRD patterns and Raman scattering spectra show a reduction in the compressive stress of MAPbI₃ thin film when covered by the PCBM thin film. In addition, it is noted that the residual stress at the contact interface between the hydrophilic MAPbI₃ and the hydrophobic PCBM can be ignored as confirmed by the results obtained with a home-made Twyman-Green interferometer. Consequently, the superior optoelectronic properties of the perovskite materials, as well as the use of a multifunctional fullerene-based thin film as the capping layer allow for the high-efficiency perovskite photovoltaics.

Original language	English
Pages (from-to)	40-46
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	169
DOIs	https://doi.org/10.1016/j.solmat.2017.05.007
State	Published - 1 Sep 2017

Keywords

CHNHPbI
PCBM
Photovoltaics
Raman scattering
Residual stress
X-ray diffraction

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

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10.1016/j.solmat.2017.05.007

Cite this

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title = "Unraveling the multifunctional capabilities of PCBM thin films in inverted-type CH3NH3PbI3 based photovoltaics",

abstract = "Comprehensive studies were carried out to explore the roles of phenyl-C61-butyric acid methyl ester (PCBM) thin films in inverted-type CH3NH3PbI3 (MAPbI3) based photovoltaics, including the surface morphologies, transmittance spectra, photoluminescence spectra, X-ray diffraction (XRD) patterns, Raman scattering spectra and thin-film residual stress analysis. The reduction in the photoluminescence line width indicates that the crystallinity of the MAPbI3 thin film can be increased by covering it with the PCBM thin film. The XRD patterns and Raman scattering spectra show a reduction in the compressive stress of MAPbI3 thin film when covered by the PCBM thin film. In addition, it is noted that the residual stress at the contact interface between the hydrophilic MAPbI3 and the hydrophobic PCBM can be ignored as confirmed by the results obtained with a home-made Twyman-Green interferometer. Consequently, the superior optoelectronic properties of the perovskite materials, as well as the use of a multifunctional fullerene-based thin film as the capping layer allow for the high-efficiency perovskite photovoltaics.",

keywords = "CHNHPbI, PCBM, Photovoltaics, Raman scattering, Residual stress, X-ray diffraction",

author = "Chang, {Sheng Hsiung} and Chen, {Cheng Chiang} and Chen, {Lung Chien} and Tien, {Chuen Lin} and Cheng, {Hsin Ming} and Huang, {Wei Chen} and Lin, {Hong Yi} and Chen, {Sheng Hui} and Wu, {Chun Guey}",

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T1 - Unraveling the multifunctional capabilities of PCBM thin films in inverted-type CH3NH3PbI3 based photovoltaics

AU - Chang, Sheng Hsiung

AU - Chen, Cheng Chiang

AU - Chen, Lung Chien

AU - Tien, Chuen Lin

AU - Cheng, Hsin Ming

AU - Huang, Wei Chen

AU - Lin, Hong Yi

AU - Chen, Sheng Hui

AU - Wu, Chun Guey

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N2 - Comprehensive studies were carried out to explore the roles of phenyl-C61-butyric acid methyl ester (PCBM) thin films in inverted-type CH3NH3PbI3 (MAPbI3) based photovoltaics, including the surface morphologies, transmittance spectra, photoluminescence spectra, X-ray diffraction (XRD) patterns, Raman scattering spectra and thin-film residual stress analysis. The reduction in the photoluminescence line width indicates that the crystallinity of the MAPbI3 thin film can be increased by covering it with the PCBM thin film. The XRD patterns and Raman scattering spectra show a reduction in the compressive stress of MAPbI3 thin film when covered by the PCBM thin film. In addition, it is noted that the residual stress at the contact interface between the hydrophilic MAPbI3 and the hydrophobic PCBM can be ignored as confirmed by the results obtained with a home-made Twyman-Green interferometer. Consequently, the superior optoelectronic properties of the perovskite materials, as well as the use of a multifunctional fullerene-based thin film as the capping layer allow for the high-efficiency perovskite photovoltaics.

AB - Comprehensive studies were carried out to explore the roles of phenyl-C61-butyric acid methyl ester (PCBM) thin films in inverted-type CH3NH3PbI3 (MAPbI3) based photovoltaics, including the surface morphologies, transmittance spectra, photoluminescence spectra, X-ray diffraction (XRD) patterns, Raman scattering spectra and thin-film residual stress analysis. The reduction in the photoluminescence line width indicates that the crystallinity of the MAPbI3 thin film can be increased by covering it with the PCBM thin film. The XRD patterns and Raman scattering spectra show a reduction in the compressive stress of MAPbI3 thin film when covered by the PCBM thin film. In addition, it is noted that the residual stress at the contact interface between the hydrophilic MAPbI3 and the hydrophobic PCBM can be ignored as confirmed by the results obtained with a home-made Twyman-Green interferometer. Consequently, the superior optoelectronic properties of the perovskite materials, as well as the use of a multifunctional fullerene-based thin film as the capping layer allow for the high-efficiency perovskite photovoltaics.

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