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Energy conversion and storage via photoinduced polarization change in non-ferroelectric molecular [CoGa] crystals
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- Sadhukhan, Pritam
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Wu, Shu-Qi
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Kanegawa, Shinji
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Su, Sheng-Qun
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Zhang, Xiaopeng
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Nakanishi, Takumi
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Long, Jeremy Ian
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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- Gao, Kaige
- College of Physical Science and Technology, Yangzhou University
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- Shimada, Rintaro
- Graduate School of Science and Engineering, Aoyama Gakuin University
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- Okajima, Hajime
- Graduate School of Science and Engineering, Aoyama Gakuin University
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- Sakamoto, Akira
- Graduate School of Science and Engineering, Aoyama Gakuin University
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- Chiappella, Joy G.
- The Department of Chemistry, The University of Manchester The Department of Chemistry, The University of Manchester at Harwell
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- Huzan, Myron S.
- The Department of Chemistry, The University of Manchester The Department of Chemistry, The University of Manchester at Harwell
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- Kroll, Thomas
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University
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- Sokaras, Dimosthenis
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Stanford University
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- Baker, Michael L.
- The Department of Chemistry, The University of Manchester The Department of Chemistry, The University of Manchester at Harwell
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- Sato, Osamu
- Institute for Materials Chemistry and Engineering & IRCCS, Kyushu University
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Description
To alleviate the energy and environmental crisis, in the last decades, energy harvesting by utilizing optical control has emerged as a promising solution. Here we report a polar crystal that exhibits photoenergy conversion and energy storage upon light irradiation. The polar crystal consists of dinuclear [CoGa] molecules, which are oriented in a uniform direction inside the crystal lattice. Irradiation with green light induces a directional intramolecular electron transfer from the ligand to a low-spin Co^III centre, and the resultant light-induced high-spin Co^II excited state is trapped at low temperature, realizing energy storage. Additionally, electric current release is observed during relaxation from the trapped light-induced metastable state to the ground state, because the intramolecular electron transfer in the relaxation process is accompanied with macroscopic polarization switching at the single-crystal level. It demonstrates that energy storage and conversion to electrical energy is realized in the [CoGa] crystals, which is different from typical polar pyroelectric compounds that exhibit the conversion of thermal energy into electricity.
Journal
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- Nature Communications
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Nature Communications 14 (1), 3394-, 2023-06-09
Springer
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Details 詳細情報について
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- CRID
- 1050018506568516736
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- NII Book ID
- AA12645905
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- ISSN
- 20411723
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- HANDLE
- 2324/7174325
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- PubMed
- 37296168
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- Crossref
- KAKEN
- OpenAIRE
