Modified Transport-Layer Interfaces for Efficient and Hysteresis-free Planar-Perovskite Solar Cells

Prasanti, T and Avasthi, S (2018) Modified Transport-Layer Interfaces for Efficient and Hysteresis-free Planar-Perovskite Solar Cells. In: 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018, 10 - 15 June 2018, Waikoloa Village, pp. 499-502.

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Abstract

Hysteresis free p-i-n Perovskite solar cells are fabricated using NiO x (p-type) and PCBM (n-type) as transport layers. The device's performance is improved by pre-conditioning both the NiOx/perovskite and perovskite/PCBM interfaces. NiO x is exposed to ozone before perovskite deposition and that improves charge extraction and reduces device variability. PCBM/perovskite interface is improved by an ageing process after PCBM deposition that reduces hysteresis and improves charge-collection. Devices with modified interfaces and optimized perovskite thickness with improved lifetimes show 13.3 efficiency, 76 fill-factor and excellent device-to-device consistency.

Item Type:	Conference Paper
Publication:	2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Deposition; Energy conversion; Hysteresis; Nickel oxide; Ozone; Perovskite; Photoelectrochemical cells; Photovoltaic cells; Solar cells; Solar power generation, ageing with PCBM; Charge collection; Charge extraction; Device to devices; Modified interfaces; Ozone treatment; Pre-conditioning; Transport layers, Perovskite solar cells
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	02 Aug 2022 11:51
Last Modified:	02 Aug 2022 11:51
URI:	https://eprints.iisc.ac.in/id/eprint/75139

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