A bright future for engineering piezoelectric 2D crystals
The piezoelectric effect, mechanical-to-electrical and electrical-to-mechanical energy conversion, is highly beneficial for functional and responsive electronic devices. To fully exploit this property, miniaturization of piezoelectric materials is the subject of intense research. Indeed, select atom...
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| Published in | Chemical Society reviews Vol. 51; no. 2; pp. 65 - 671 |
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| Main Authors | , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
England
Royal Society of Chemistry
24.01.2022
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The piezoelectric effect, mechanical-to-electrical and electrical-to-mechanical energy conversion, is highly beneficial for functional and responsive electronic devices. To fully exploit this property, miniaturization of piezoelectric materials is the subject of intense research. Indeed, select atomically thin 2D materials strongly exhibit the piezoelectric effect. The family of 2D crystals consists of over 7000 chemically distinct members that can be further manipulated in terms of strain, functionalization, elemental substitution (
i.e.
Janus 2D crystals), and defect engineering to induce a piezoelectric response. Additionally, most 2D crystals can stack with other similar or dissimilar 2D crystals to form a much greater number of complex 2D heterostructures whose properties are quite different to those of the individual constituents. The unprecedented flexibility in tailoring 2D crystal properties, coupled with their minimal thickness, make these emerging highly attractive for advanced piezoelectric applications that include pressure sensing, piezocatalysis, piezotronics, and energy harvesting. This review summarizes literature on piezoelectricity, particularly out-of-plane piezoelectricity, in the vast family of 2D materials as well as their heterostructures. It also describes methods to induce, enhance, and control the piezoelectric properties. The volume of data and role of machine learning in predicting piezoelectricity is discussed in detail, and a prospective outlook on the 2D piezoelectric field is provided.
We explore piezoelectricity in 2D crystals, envisioning assessment, prediction, and engineering 2D piezoelectricity
via
chemical, computational, and physical approaches. |
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| Bibliography: | Alexander Corletto is currently a research fellow in electronic nanomaterials in the Department of Chemical Engineering at the University of Melbourne. Alexander's research involves the synthesis, manipulation, and characterisation of novel nanomaterials and their heterostructures, aiming to discover optimised materials for energy applications including photocatalysis, photovoltaics, piezoelectricity, and others. He also has interest in the scalable manipulation and patterning of these nanomaterials for advanced device fabrication. He completed his PhD research at the Australian Institute for Bioengineering and Nanotechnology at the University of Queensland which involved investigating novel high-resolution patterning techniques for carbon nanotubes and nanomaterials. Peter researches the synthesis, assembly, and characterisation of materials. He designs approaches to exploit structure-property relationships for mechanical-to-electrical energy conversion, electrochemical energy storage, catalysis, and biomaterial surfaces. Currently, he holds a prestigious Elizabeth & Vernon Puzey Research Fellowship at the University of Melbourne, and is an Honorary Fellow at the ARC Centre of Excellence for Electromaterials Science, Associate Investigator for the ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals, and Visiting Fellow at RMIT. Previously, he held a Marie Sklodowska-Curie Individual Fellow at Imperial College London, and a Research Fellowship at Linköpings Universitet. Dr Nick A. Shepelin obtained his Bachelor of Science degree from Flinders University (2017) and his PhD degree from the University of Melbourne (2020) which was awarded with the Chancellor's Prize for Excellence. He currently holds a position in the Laboratory for Multiscale Materials Experiments at Paul Scherrer Institut as a Postdoctoral Fellow. His research focuses on interface, strain, and domain engineering of non-linear dielectric materials, spanning from piezoelectricity for sustainable energy harvesting to antiferroelectricity for robust energy storage applications. His research exploits a variety of material compositions, such as bulk polymers, two-dimensional materials, inorganic oxides, and oxynitrides. David Winkler is a Professor at La Trobe Institute for Molecular Science at La Trobe University, a visiting Professor at the University of Nottingham, and a Fellow at CSIRO Data61. His research on applying computational chemistry, AI, and machine learning methods to the design of drugs, agrochemicals, nanomaterials, and biomaterials, has led to over 200 journal articles and book chapters, and 25 patents. He has won prestigious awards including the CSIRO Medal for Business Excellence, RACI's Adrien Albeirt award, and the ACS Herman Skolnik award. He is ranked 227th of 81 000 medicinal chemists, and 999th of 520 000 chemists worldwide (Mendeley 2019). Professor Amanda Ellis is the Head of Department of Chemical Engineering at the University of Melbourne, Australia. She graduated from the University of Technology, Sydney in 2003 and has undertaken postdoctoral appointments at Rensselaer Polytechnic Institute, New Mexico State University and Callaghan Innovations, NZ. She has been a Professor and Australian Research Future Fellow at Flinders University, South Australia. Amanda is an applied chemist/nanotechnologist her work focuses on the surface and interfacial chemistries for energy storage/harvesting and device applications. Marco Fronzi is an Associate Professor at the Shibaura Institute of Technology. He received his Bachelor's/Master's Degree of Physics in 2003, and his PhD in Computational Material Science in 2009 at Tor Vergata University in Rome (Italy). In 2010, he was awarded the Japan Society for the Promotion of Science Fellowship to conduct research at the National Institute for Materials Science (Japan). He has held positions with prestigious institutes, including Osaka University, University of Technology Sydney, and Tyndall National Institute. His interests lie in theoretical/computational models for understanding/predicting properties of materials, and discovery of novel materials for energy conversion applications. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Review-3 content type line 23 |
| ISSN: | 0306-0012 1460-4744 1460-4744 |
| DOI: | 10.1039/d1cs00844g |