期刊
NATURE COMMUNICATIONS
卷 12, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41467-021-21019-4
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资金
- Japan Society for the Promotion of Science (JSPS) [JP26102006, JP26102007]
- Japanese Ministry of Education, Culture, Sports, Science, and Technology (MEXT) [15H00918]
- JSPS KAKENHI [16K13945, JP20H05865, JP20K05442, JP20H04655]
- JST CREST [JPMJCR18I4]
- 'Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials' from MEXT
- Yamada Science Foundation
- Grants-in-Aid for Scientific Research [15H00918, 16K13945] Funding Source: KAKEN
Research on organic ferroelectrics has gained significant attention, but the mechanistic insight into generating ferroelectricity in these compounds remains limited. This study demonstrates a new concept of generating ferroelectricity through a bowl-to-bowl inversion, which could have a significant impact on the field of materials science in the future.
Organic ferroelectrics, in which the constituent molecules retain remanent polarization, represent an important topic in condensed-matter science, and their attractive properties, which include lightness, flexibility, and non-toxicity, are of potential use in state-of-the-art ferroelectric devices. However, the mechanisms for the generation of ferroelectricity in such organic compounds remain limited to a few representative concepts, which has hitherto severely hampered progress in this area. Here, we demonstrate that a bowl-to-bowl inversion of a relatively small organic molecule with a bowl-shaped -aromatic core generates ferroelectric dipole relaxation. The present results thus reveal an unprecedented concept to produce ferroelectricity in small organic molecules, which can be expected to strongly impact materials science. Organic ferroelectrics are of potential use in state-of-the-art ferroelectric devices but mechanistic insight in generating ferroelectricity remains limited. Here, the authors demonstrate that a bowl-to-bowl inversion of a bowl shaped organic molecule generates ferroelectric dipole relaxation, extending the concept of ferroelectricity in small organic molecules.
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