Carrier injection and recombination processes in perovskite CH3NH3PbI3 solar cells studied by electroluminescence spectroscopy

Taketo Handa; Makoto Okano; David M. Tex; Ai Shimazaki; Tomoko Aharen; Atsushi Wakamiya; Yoshihiko Kanemitsu

doi:10.1117/12.2212052

Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy

Taketo Handa, Makoto Okano, David M. Tex, Ai Shimazaki, Tomoko Aharen, Atsushi Wakamiya, Yoshihiko Kanemitsu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Organic-inorganic hybrid perovskite materials, CH₃NH₃PbX₃ (X = I and Br), are considered as promising candidates for emerging thin-film photovoltaics. For practical implementation, the degradation mechanism and the carrier dynamics during operation have to be clarified. We investigated the degradation mechanism and the carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells using photoluminescence (PL) and electroluminescence (EL) imaging spectroscopies. By applying forward bias-voltage, an inhomogeneous distribution of the EL intensity was clearly observed from the CH₃NH₃PbI₃ solar cells. By comparing the PL-and EL-images, we revealed that the spatial inhomogeneity of the EL intensity is a result of the inhomogeneous luminescence efficiency in the perovskite layer. An application of bias-voltage for several tens of minutes in air caused a decrease in the EL intensity and the conversion efficiency of the perovskite solar cells. The degradation mechanism of perovskite solar cells under bias-voltage in air is discussed.

Original language	English
Title of host publication	Organic Photonic Materials and Devices XVIII
Editors	Francois Kajzar, Christopher E. Tabor, Toshikuni Kaino, Yasuhiro Koike
Publisher	SPIE
ISBN (Electronic)	9781628419801
DOIs	https://doi.org/10.1117/12.2212052
Publication status	Published - 2016
Externally published	Yes
Event	Organic Photonic Materials and Devices XVIII - San Francisco, United States Duration: 2016 Feb 15 → 2016 Feb 17

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9745
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Organic Photonic Materials and Devices XVIII
Country/Territory	United States
City	San Francisco
Period	16/2/15 → 16/2/17

Keywords

Organic-inorganic hybrid
degradation
electroluminescence
perovskite solar cells
photoluminescence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2212052

Cite this

Handa, T., Okano, M., Tex, D. M., Shimazaki, A., Aharen, T., Wakamiya, A., & Kanemitsu, Y. (2016). Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy. In F. Kajzar, C. E. Tabor, T. Kaino, & Y. Koike (Eds.), Organic Photonic Materials and Devices XVIII [97451I] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9745). SPIE. https://doi.org/10.1117/12.2212052

Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy. / Handa, Taketo; Okano, Makoto; Tex, David M.; Shimazaki, Ai; Aharen, Tomoko; Wakamiya, Atsushi; Kanemitsu, Yoshihiko.

Organic Photonic Materials and Devices XVIII. ed. / Francois Kajzar; Christopher E. Tabor; Toshikuni Kaino; Yasuhiro Koike. SPIE, 2016. 97451I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9745).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Handa, T, Okano, M, Tex, DM, Shimazaki, A, Aharen, T, Wakamiya, A & Kanemitsu, Y 2016, Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy. in F Kajzar, CE Tabor, T Kaino & Y Koike (eds), Organic Photonic Materials and Devices XVIII., 97451I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9745, SPIE, Organic Photonic Materials and Devices XVIII, San Francisco, United States, 16/2/15. https://doi.org/10.1117/12.2212052

Handa T, Okano M, Tex DM, Shimazaki A, Aharen T, Wakamiya A et al. Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy. In Kajzar F, Tabor CE, Kaino T, Koike Y, editors, Organic Photonic Materials and Devices XVIII. SPIE. 2016. 97451I. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.2212052

Handa, Taketo ; Okano, Makoto ; Tex, David M. ; Shimazaki, Ai ; Aharen, Tomoko ; Wakamiya, Atsushi ; Kanemitsu, Yoshihiko. / Carrier injection and recombination processes in perovskite CH₃NH₃PbI₃ solar cells studied by electroluminescence spectroscopy. Organic Photonic Materials and Devices XVIII. editor / Francois Kajzar ; Christopher E. Tabor ; Toshikuni Kaino ; Yasuhiro Koike. SPIE, 2016. (Proceedings of SPIE - The International Society for Optical Engineering).

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abstract = "Organic-inorganic hybrid perovskite materials, CH3NH3PbX3 (X = I and Br), are considered as promising candidates for emerging thin-film photovoltaics. For practical implementation, the degradation mechanism and the carrier dynamics during operation have to be clarified. We investigated the degradation mechanism and the carrier injection and recombination processes in perovskite CH3NH3PbI3 solar cells using photoluminescence (PL) and electroluminescence (EL) imaging spectroscopies. By applying forward bias-voltage, an inhomogeneous distribution of the EL intensity was clearly observed from the CH3NH3PbI3 solar cells. By comparing the PL-and EL-images, we revealed that the spatial inhomogeneity of the EL intensity is a result of the inhomogeneous luminescence efficiency in the perovskite layer. An application of bias-voltage for several tens of minutes in air caused a decrease in the EL intensity and the conversion efficiency of the perovskite solar cells. The degradation mechanism of perovskite solar cells under bias-voltage in air is discussed.",

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AU - Aharen, Tomoko

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AU - Kanemitsu, Yoshihiko

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AB - Organic-inorganic hybrid perovskite materials, CH3NH3PbX3 (X = I and Br), are considered as promising candidates for emerging thin-film photovoltaics. For practical implementation, the degradation mechanism and the carrier dynamics during operation have to be clarified. We investigated the degradation mechanism and the carrier injection and recombination processes in perovskite CH3NH3PbI3 solar cells using photoluminescence (PL) and electroluminescence (EL) imaging spectroscopies. By applying forward bias-voltage, an inhomogeneous distribution of the EL intensity was clearly observed from the CH3NH3PbI3 solar cells. By comparing the PL-and EL-images, we revealed that the spatial inhomogeneity of the EL intensity is a result of the inhomogeneous luminescence efficiency in the perovskite layer. An application of bias-voltage for several tens of minutes in air caused a decrease in the EL intensity and the conversion efficiency of the perovskite solar cells. The degradation mechanism of perovskite solar cells under bias-voltage in air is discussed.

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