Strain engineering in alloy nanoparticles
ABSTRACTThe deformation of interatomic distances with respect to those of the perfect crystal generates atomic-level strain. In nanoalloys, strain can arise because of finite size, morphology, domain structure and lattice mismatch between their atomic compounds. Strain can strongly affect the functi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Advances in Physics: X |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/23746149.2022.2127330 |
| _version_ | 1797655873666940928 |
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| author | Diana Nelli Cesare Roncaglia Chloé Minnai |
| author_facet | Diana Nelli Cesare Roncaglia Chloé Minnai |
| author_sort | Diana Nelli |
| collection | DOAJ |
| description | ABSTRACTThe deformation of interatomic distances with respect to those of the perfect crystal generates atomic-level strain. In nanoalloys, strain can arise because of finite size, morphology, domain structure and lattice mismatch between their atomic compounds. Strain can strongly affect the functional properties of nanoalloys, as it alters their electronic energy levels. Moreover, atomic-level strain generates atomic-level stress, which in turn results in distortions induced by strain. When the stress accumulated in a nanoalloy exceeds a certain level, the particle can relax that stress by undergoing structural transitions such as shape and/or chemical ordering transitions. Atomic-level strain is then a powerful tool to control and manipulate the structural and functional properties of nanoalloys. This requires a combined theoretical and experimental approach both to deeply understand the physical origin of strain, and to characterize it with a sub-angstrom resolution. Here, we present a theoretical analysis of the main sources of strain in nanoalloys, we analyse how atomic-level strain can be experimentally measured with transmission electron microscopy, we discuss its effect on the functional properties of nanoalloys, finally we describe how atomic-level stress arises from atomic-level strain, and how stress can induce structural transformations at the nanoscale. |
| first_indexed | 2024-03-11T17:20:56Z |
| format | Article |
| id | doaj.art-cd3d33a65c6b48dfa25a91b58ea1b248 |
| institution | Directory Open Access Journal |
| issn | 2374-6149 |
| language | English |
| last_indexed | 2024-03-11T17:20:56Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Advances in Physics: X |
| spelling | doaj.art-cd3d33a65c6b48dfa25a91b58ea1b2482023-10-19T13:03:27ZengTaylor & Francis GroupAdvances in Physics: X2374-61492023-12-018110.1080/23746149.2022.2127330Strain engineering in alloy nanoparticlesDiana Nelli0Cesare Roncaglia1Chloé Minnai2Physics Department, University of Genoa, Genoa, ItalyPhysics Department, University of Genoa, Genoa, ItalyMolecular Cryo-Electron Microscopy Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, JapanABSTRACTThe deformation of interatomic distances with respect to those of the perfect crystal generates atomic-level strain. In nanoalloys, strain can arise because of finite size, morphology, domain structure and lattice mismatch between their atomic compounds. Strain can strongly affect the functional properties of nanoalloys, as it alters their electronic energy levels. Moreover, atomic-level strain generates atomic-level stress, which in turn results in distortions induced by strain. When the stress accumulated in a nanoalloy exceeds a certain level, the particle can relax that stress by undergoing structural transitions such as shape and/or chemical ordering transitions. Atomic-level strain is then a powerful tool to control and manipulate the structural and functional properties of nanoalloys. This requires a combined theoretical and experimental approach both to deeply understand the physical origin of strain, and to characterize it with a sub-angstrom resolution. Here, we present a theoretical analysis of the main sources of strain in nanoalloys, we analyse how atomic-level strain can be experimentally measured with transmission electron microscopy, we discuss its effect on the functional properties of nanoalloys, finally we describe how atomic-level stress arises from atomic-level strain, and how stress can induce structural transformations at the nanoscale.https://www.tandfonline.com/doi/10.1080/23746149.2022.2127330Nanoalloysstrain engineeringHRTEMlattice mismatchstressatomistic simulations |
| spellingShingle | Diana Nelli Cesare Roncaglia Chloé Minnai Strain engineering in alloy nanoparticles Advances in Physics: X Nanoalloys strain engineering HRTEM lattice mismatch stress atomistic simulations |
| title | Strain engineering in alloy nanoparticles |
| title_full | Strain engineering in alloy nanoparticles |
| title_fullStr | Strain engineering in alloy nanoparticles |
| title_full_unstemmed | Strain engineering in alloy nanoparticles |
| title_short | Strain engineering in alloy nanoparticles |
| title_sort | strain engineering in alloy nanoparticles |
| topic | Nanoalloys strain engineering HRTEM lattice mismatch stress atomistic simulations |
| url | https://www.tandfonline.com/doi/10.1080/23746149.2022.2127330 |
| work_keys_str_mv | AT diananelli strainengineeringinalloynanoparticles AT cesareroncaglia strainengineeringinalloynanoparticles AT chloeminnai strainengineeringinalloynanoparticles |