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Ambient Prepared Mesoporous Perovskite Solar Cells with Longer Stability

Makkaramkott, A and Mukherjee, R and Avasthi, S and Subramanian, A (2021) Ambient Prepared Mesoporous Perovskite Solar Cells with Longer Stability. In: Journal of Electronic Materials .

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Official URL: https://dx.doi.org/10.1007/s11664-020-08721-7


The study carried out here is the ambient preparation of CH3NH3PbI3 (methylammonium lead iodide, MAPI)-based perovskite solar cells (PSCs) without a hole transport layer (HTL). The TiO2 electron transport layer (ETL) is deposited using three different methods, namely, chemical deposition, RF sputtering and e-beam evaporation, and the fabricated solar cell performances are compared. The common device structure is FTO/compact-TiO2/mesoporous-TiO2/MAPI/Au. The solar cell parameters are measured under standard AM 1.5 G light of intensity 1 sun. The e-beam-based PSCs attained a maximum power conversion efficiency of 3.54 among the 25 devices fabricated on a 1-in.2 substrate. Notably, it is found that 85 or above of the initial efficiency is retained for 20 days of storage in the dark indicating slow degradation of the studied solar cells. All the solar cell performances are monitored for 130 days during the storage. Remarkably, the RF-sputtered compact TiO2 layer-based PSCs have retained 99 of the initial average efficiency up to 112 days of storage. © 2021, The Minerals, Metals & Materials Society.

Item Type: Journal Article
Publication: Journal of Electronic Materials
Publisher: Springer
Additional Information: The copyright of this article belongs to Springer
Keywords: Conversion efficiency; Efficiency; Electron transport properties; Iodine compounds; Layered semiconductors; Lead compounds; Perovskite; Titanium dioxide, Average efficiencies; Chemical deposition; E beam evaporation; Electron transport layers; Hole transport layers; Initial efficiency; Solar cell parameters; Solar cell performance, Perovskite solar cells
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 11 Mar 2021 09:36
Last Modified: 11 Mar 2021 09:36
URI: http://eprints.iisc.ac.in/id/eprint/67807

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