Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells

Naveen Kumar Elumalai; Arafat Mahmud; Dian Wang; Matthew Wright; Mushfika Baishakhi Upama; Kah Howe Chan; Cheng Xu; Ashraf Uddin

doi:10.1109/PVSC.2016.7749706

Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells

Naveen Kumar Elumalai, Arafat Mahmud, Dian Wang, Matthew Wright, Mushfika Baishakhi Upama, Kah Howe Chan, Cheng Xu, Ashraf Uddin

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper published in Proceedings › peer-review

Abstract

Organic-inorganic hybrid perovskite solar cells (PSCs) have demonstrated enormous potential to replace the traditional silicon photovoltaics. In spite of impressive progress, an in-depth understanding of various physiochemical and electronic properties of PSCs are yet to be unravelled. Anomalous hysteresis is one among them and its origin is a highly debated issue till date. In this work, the role of device structure and interfacial charge selective layer on the origin of hysteresis phenomenon was investigated. Normal devices with ZnO as electron transport layer exhibited excess interfacial capacitance in an order of magnitude higher than inverted devices with PCBM. Current-voltage characteristics correlated with capacitance measurements revealed that the electrode polarization as a consequence of ion migration and interfacial defect states might be a possible origin for hysteresis in PSCs.

Original language	English
Title of host publication	Conference Record of the IEEE Photovoltaic Specialists Conference
Place of Publication	Piscataway, NJ
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	764-767
Number of pages	4
Volume	2016-November
ISBN (Electronic)	9781509027248
ISBN (Print)	9781509027255
DOIs	https://doi.org/10.1109/PVSC.2016.7749706
Publication status	Published - 2016
Externally published	Yes
Event	43rd Photovoltaic Specialists Conference (PVSC) - Portland, United States Duration: 5 Jun 2016 → 10 Jun 2016 Conference number: 43

Conference

Conference	43rd Photovoltaic Specialists Conference (PVSC)
Abbreviated title	PVSC 2016
Country/Territory	United States
City	Portland
Period	5/06/16 → 10/06/16

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Elumalai, N. K., Mahmud, A., Wang, D., Wright, M., Upama, M. B., Chan, K. H., Xu, C., & Uddin, A. (2016). Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells. In Conference Record of the IEEE Photovoltaic Specialists Conference (Vol. 2016-November, pp. 764-767). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/PVSC.2016.7749706

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title = "Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells",

abstract = "Organic-inorganic hybrid perovskite solar cells (PSCs) have demonstrated enormous potential to replace the traditional silicon photovoltaics. In spite of impressive progress, an in-depth understanding of various physiochemical and electronic properties of PSCs are yet to be unravelled. Anomalous hysteresis is one among them and its origin is a highly debated issue till date. In this work, the role of device structure and interfacial charge selective layer on the origin of hysteresis phenomenon was investigated. Normal devices with ZnO as electron transport layer exhibited excess interfacial capacitance in an order of magnitude higher than inverted devices with PCBM. Current-voltage characteristics correlated with capacitance measurements revealed that the electrode polarization as a consequence of ion migration and interfacial defect states might be a possible origin for hysteresis in PSCs.",

author = "Elumalai, {Naveen Kumar} and Arafat Mahmud and Dian Wang and Matthew Wright and Upama, {Mushfika Baishakhi} and Chan, {Kah Howe} and Cheng Xu and Ashraf Uddin",

year = "2016",

doi = "10.1109/PVSC.2016.7749706",

language = "English",

isbn = "9781509027255",

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booktitle = "Conference Record of the IEEE Photovoltaic Specialists Conference",

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note = "43rd Photovoltaic Specialists Conference (PVSC), PVSC 2016 ; Conference date: 05-06-2016 Through 10-06-2016",

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Elumalai, NK, Mahmud, A, Wang, D, Wright, M, Upama, MB, Chan, KH, Xu, C & Uddin, A 2016, Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells. in Conference Record of the IEEE Photovoltaic Specialists Conference. vol. 2016-November, IEEE, Institute of Electrical and Electronics Engineers, Piscataway, NJ, pp. 764-767, 43rd Photovoltaic Specialists Conference (PVSC), Portland, Oregon, United States, 5/06/16. https://doi.org/10.1109/PVSC.2016.7749706

Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells. / Elumalai, Naveen Kumar; Mahmud, Arafat; Wang, Dian et al.
Conference Record of the IEEE Photovoltaic Specialists Conference. Vol. 2016-November Piscataway, NJ: IEEE, Institute of Electrical and Electronics Engineers, 2016. p. 764-767.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper published in Proceedings › peer-review

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AU - Elumalai, Naveen Kumar

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AU - Upama, Mushfika Baishakhi

AU - Chan, Kah Howe

AU - Xu, Cheng

AU - Uddin, Ashraf

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AB - Organic-inorganic hybrid perovskite solar cells (PSCs) have demonstrated enormous potential to replace the traditional silicon photovoltaics. In spite of impressive progress, an in-depth understanding of various physiochemical and electronic properties of PSCs are yet to be unravelled. Anomalous hysteresis is one among them and its origin is a highly debated issue till date. In this work, the role of device structure and interfacial charge selective layer on the origin of hysteresis phenomenon was investigated. Normal devices with ZnO as electron transport layer exhibited excess interfacial capacitance in an order of magnitude higher than inverted devices with PCBM. Current-voltage characteristics correlated with capacitance measurements revealed that the electrode polarization as a consequence of ion migration and interfacial defect states might be a possible origin for hysteresis in PSCs.

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Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells

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