Structural Isomeric Effect on Spin Transport in Molecular Semiconductors
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Le résumé fourni par la source
Molecular semiconductor (MSC) is a promising candidate for spintronic applications benefiting from its long spin lifetime caused by light elemental-composition essence and thus weak spin-orbit coupling (SOC). According to current knowledge, the SOC effect, normally dominated by the elemental composition, is the main spin-relaxation causation in MSCs, and thus the molecular structure-induced SOC change is one of the most concerned issues. In theoretical study, molecular isomerism, a most prototype phenomenon, has long been considered to possess little difference on spin transport previously, since elemental compositions of isomers are totally the same. However, here in this study, quite different spin-transport performances are demonstrated in ITIC and its structural isomers BDTIC experimentally, for the first time, though the charge transport and molecular stacking of the two films are very similar. By further experiments of electron-paramagnetic resonance and density-functional-theory calculations, it is revealed that noncovalent-conformational locks (NCLs) formed in BDTIC can lead to enhancement of SOC and thus decrease the spin lifetime. Hence, this study suggests the influences from the structural-isomeric effect must be considered for developing highly efficient spin-transport MSCs, which also provides a reliable theoretical basis for solving the great challenge of quantificational measurement of NCLs in films in the future.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Structural Isomeric Effect on Spin Transport in Molecular Semiconductors
- Date Crossref
- 18/04/2024
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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National Center for Nanoscience and Technology pays non établi dans la noticeOrganisation à but non lucratif
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University of Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering pays non établi dans la noticeUniversité ou école supérieure
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Beijing University of Technology pays non établi dans la noticeUniversité ou école supérieure
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Zhengzhou University pays non établi dans la noticeUniversité ou école supérieure
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Key Laboratory of Nanosystem and Hierarchical Fabrication pays non établi dans la noticeStructure de recherche
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Faculty of Materials and Manufacturing Beijing Key Laboratory of Microstructure and Property of Solids pays non établi dans la noticeUniversité ou école supérieure
National Center for Nanoscience and Technology, Center of Materials Science and Optoelectronics Engineering — University of Chinese Academy of Sciences et Beijing University of Technology, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.