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Simulation and Optimization of FAPbI3 Perovskite Solar Cells with a BaTiO3 Layer for Efficiency Enhancement

Stanić, Denis; Kojić, Vedran; Bohač, Mario; Čižmar, Tihana; Juraić, Krunoslav; Rath, Thomas; Gajović, Andreja (2022) Simulation and Optimization of FAPbI3 Perovskite Solar Cells with a BaTiO3 Layer for Efficiency Enhancement. Materials, 15 (20). pp. 7310-7324. ISSN 1996-1944

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Since the addition of BaTiO3 in perovskite solar cells (PSCs) provides a more energetically favorable transport route for electrons, resulting in more efficient charge separation and electron extraction, in this work we experimentally prepared such a PSC and used a modeling approach to point out which simulation parameters have an influence on PSC characteristics and how they can be improved. We added a layer of BaTiO3 onto the TiO2 electron transport layer and prepared a PSC, which had an FTO/TiO2/BaTiO3/FAPbI3/spiro-OMeTAD/Au architecture with a power conversion efficiency (PCE) of 11%. Further, we used the simulation program SCAPS-1D to investigate and optimize the device parameters (thickness of the BaTiO3 and absorber layers, doping, and defect concentration) resulting in devices with PCEs reaching up to 15%, and even up to 20% if we assume an ideal structure with no interlayer defects. Our experimental findings and simulations in this paper highlight the promising interplay of multilayer TiO2/BaTiO3 ETLs for potential future applications in PSCs.

Item Type: Article
Uncontrolled Keywords: perovskite solar cell; SCAPS-1D; optimization; simulation; power conversion efficiency; BaTiO3
Subjects: NATURAL SCIENCES > Physics
NATURAL SCIENCES > Interdisciplinary Natural Sciences
TECHNICAL SCIENCES > Chemical Engineering
Divisions: Division of Materials Physics
Project titleProject leaderProject codeProject type
Nanokompoziti s perovskitima za fotovoltaike, fotokatalizu i senzoriku-NanoPeroPhotoSensAndreja Gajović;IP-2018-01-5246HRZZ
Depositing User: Diana Mikoč Radešić
Date Deposited: 30 Jan 2024 10:10
DOI: 10.3390/ma15207310

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