Side-Chain Engineering of Polystyrene Dielectrics Toward High-Performance Photon Memories and Artificial Synapses
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Le résumé fourni par la source
The emerging applications of organic field-effect transistors (OFETs), such as photon memories and artificial synapses, require polymer dielectrics with superior charge trapping properties. Despite the introduction of high- k and fluorinated polymers in the performance optimization of OFETs, there is still a lack of widely recognized acknowledgment between molecular structures and charge trapping characteristics, as well as no general principles in designing polymeric dielectrics for electronic memory devices. Here, we propose a series of fluorinated polystyrene isomers through side-chain engineering, namely, ortho-( o -), meta-( m -), and para-fluorinated polystyrene ( p -FPS). The gradually enlarged intramolecular charge separation of o -, m -, and p -FPS enhances molecular electrostatic potential, which promotes polarization and charge trapping performances, resulting in an enlarged dielectric constant, as well as more deep traps toward stable electret. Subsequently, largely improved photon memory and artificial synapse performances of p -FPS-based OFETs further suggest the dominating role of dielectric side-chain structures on memory and synapse performances, leading to a recommendation of low- k (ε r < 5) dielectric polymers with enhanced electrostatic potential for OFET-based memory devices and bionic nervous systems.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Side-Chain Engineering of Polystyrene Dielectrics Toward High-Performance Photon Memories and Artificial Synapses
- Date Crossref
- 12/07/2022
- Éditeur
- American Chemical Society (ACS)
- 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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Xi'an Jiaotong University State Key Laboratory of Electrical Insulation and Power Equipment and Frontier Institute of Science and Technology pays non établi dans la noticeUniversité ou école supérieure
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Changchun Institute of Applied Chemistry pays non établi dans la noticeStructure de recherche
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State Key Laboratory of Polymer Physics and Chemistry pays non établi dans la noticeStructure de recherche
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Electric Power Research Institute pays non établi dans la noticeStructure de recherche
State Key Laboratory of Electrical Insulation and Power Equipment and Frontier Institute of Science and Technology — Xi'an Jiaotong University, Changchun Institute of Applied Chemistry et State Key Laboratory of Polymer Physics and Chemistry, avec 1 autre affiliation.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.