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Naseri M, Amirian S, Faraji M, Rashid MA, Lourenço MP, Thangadurai V, Salahub DR. Perovskenes: two-dimensional perovskite-type monolayer materials predicted by first-principles calculations. Phys Chem Chem Phys 2024; 26:946-957. [PMID: 38088085 DOI: 10.1039/d3cp04435a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Abstract
Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3 onto various substrates without any thickness limitation, in this study, using density functional theory (DFT), we assessed the structural stability of a group of two-dimensional perovskite-type materials which we call perovskenes. Specifically, we analyzed the stability of 2D SrTiO3, SrZrO3, BaTiO3, and BaZrO3 monolayers. Our simulations revealed that the 2D monolayers of SrTiO3, BaTiO3, and BaZrO3 are at least meta-stable, as confirmed by cohesive energy calculations, evaluation of elastic constants, and simulation of phonon dispersion modes. With this information, we proceeded to investigate the electronic, optical, and thermoelectric properties of these perovskenes. To gain insight into their promising applications, we investigated the electronic and optical properties of these 2D materials and found that they are wide bandgap semiconductors with significant absorption and reflection in the ultraviolet (UV) region of the electromagnetic field, suggesting them as promising materials for use in UV shielding applications. In addition, evaluating their thermoelectric factors revealed that these materials become better conductors of electricity and heat as the temperature rises. They can, hence, convert temperature gradients into electrical energy and transport electrical charges, which is beneficial for efficient power generation in thermoelectric devices. This work opens a new window for designing a novel family of 2D perovskite type materials termed perovskenes. The vast variety of different perovskite compounds and their variety of applications suggest deeper studies on the perovskenes materials for use in innovative technologies.
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Affiliation(s)
- Mosayeb Naseri
- Department of Chemistry, Department of Physics and Astronomy, CMS - Center for Molecular Simulation, IQST - Institute for Quantum Science and Technology, Quantum Alberta, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada.
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Shirin Amirian
- Department of Physics, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
| | - Mehrdad Faraji
- Micro and Nanotechnology Graduate Program, TOBB University of Economics and Technology, Sogutozu Caddesi No 43 Sogutozu, 06560 Ankara, Turkey
| | - Mohammad Abdur Rashid
- Department of Physics, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Maicon Pierre Lourenço
- Departamento de Química e Física - Centro de Ciências Exatas, Naturais e da Saúde - CCENS - Universidade Federal do Espírito Santo, Alegre, Espírito Santo, Brazil
| | | | - D R Salahub
- Department of Chemistry, Department of Physics and Astronomy, CMS - Center for Molecular Simulation, IQST - Institute for Quantum Science and Technology, Quantum Alberta, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, Canada.
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