Optoelectronic and Photovoltaic Properties of (NH4)3Bi2I9: A Perovskite‐like Energy Material for Pb‐free Perovskite Solar Cells
Source abstract
Abstract
Abstract Recent few years have witnessed a tremendous surge in the design and fabrication of lead (Pb)‐free perovskite or perovskite‐like materials for the development of perovskite solar cells (PSCs). Bismuth halide perovskite materials such as (CH3NH3)3Bi2I9, Cs3Bi2I9 and FA3Bi2I9 have been utilized as highly efficient perovskite light absorbers in terms of aerobic stability. Herein, we have investigated the optoelectronic properties of the (NH4)3Bi2I9 perovskite and employed as light absorber in the construction of Pb free PSCs. Solvent engineering approach was utilized to improve the photovoltaic performance of the (NH4)3Bi2I9 perovskite based PSCs. The probable HOMO and LUMO energy level values of the (NH4)3Bi2I9 perovskite were also investigated and the band gap of the (NH4)3Bi2I9 perovskite was found to be of 2.1 eV. The developed PSCs device exhibited the power conversion efficiency (PCE) of ∼0.6%.
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Research context
OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry
School of Materials Science and Engineering Yeungnam University Gyeongsan 38541 (Republic of Korea
Department of Biosciences and Bio-Medical Engineering
Center for Electric Vehicle and Intelligent Transport Systems (CEVITS) Indian Institute of Technology Indore, Simrol Khandwa Road Indore 453552 India
Funding
Board of Research in Nuclear Sciences
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