# Ambipolar charge-trapping in self-assembled nanostructures of supramolecular miktoarm star-shaped copolymer with a zinc phthalocyanine core https://mdr.nims.go.jp/datasets/93cd15f7-362b-4d79-8f19-22289a418e2b ## File - [XInhao_JMCC2024.pdf](https://mdr.nims.go.jp/filesets/e27d7baa-f0a9-4e9b-95cb-09fa7be29191/download) ([Detail](https://mdr.nims.go.jp/filesets/e27d7baa-f0a9-4e9b-95cb-09fa7be29191.md)) ## Id 93cd15f7-362b-4d79-8f19-22289a418e2b ## Local identifier ## Visibility open_to_public ## State published ## Created at 2024-05-21T04:30:59.227364Z ## Updated at 2024-06-25T03:30:21.260394Z ## Published at 2024-06-25T03:30:21.354951Z ## Doi ## First published url https://doi.org/10.1039/D4TC01265H ## Date published 2024-05-21 ## Recorded date published 2024-7-4 ## Resource type journal_article ## Manuscript type vor ## Collection ## Title - title: Ambipolar charge-trapping in self-assembled nanostructures of supramolecular miktoarm star-shaped copolymer with a zinc phthalocyanine core title_type: original lang: en ## Description - description: Nonvolatile organic field-effect transistor (OFET) memories have attracted considerable attention owing to their potential applications in flexible and wearable electronic devices. The novel design of a charge-trapping material based on supramolecular miktoarm star copolymers (µ-stars) consisting of star-shaped polystyrene with a zinc phthalocyanine core (ZnPcPS4) and pyridyl end-functionalized polymer (py-polymer) has been studied to explore the influence of self-assembled morphology on the final device performances. Supramolecular µ-stars containing the ZnPc core showed distinctive phase-separated nanostructures in the films that were different from typical polymer blends. The OFET memory devices embedded with supramolecular µ-stars exhibited ambipolar charge-trapping behavior with photoresponsive characteristics, resulting in a wide memory window (47 V) with a high on/off current ratio (>107) for a long period of time (>104 s). Furthermore, the charge-trapping properties of the polymer memory layer were studied using Kelvin probe force microscopy (KPFM), revealing enhanced charge-trapping capabilities attributed to nanoscale phase separation in the supramolecular µ-star. This study provides the design and concept of charge-trapping materials for next-generation high-performance OFET memory devices. description_type: abstract lang: eng ## Creator - name: Xinhao Zhong role: author orcid: https://orcid.org/0000-0002-4468-6847 organization: National Institute for Materials Science department: Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Design and Function Group ror: https://ror.org/026v1ze26 - name: Debdatta Panigrahi role: author organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group ror: https://ror.org/026v1ze26 - name: Ryoma Hayakawa role: author orcid: https://orcid.org/0000-0002-1442-8230 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group ror: https://ror.org/026v1ze26 - name: Yutaka Wakayama role: author orcid: https://orcid.org/0000-0002-0801-8884 organization: National Institute for Materials Science department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group ror: https://ror.org/026v1ze26 - name: Koji Harano role: author orcid: https://orcid.org/0000-0001-6800-8023 organization: National Institute for Materials Science department: Center for Basic Research on Materials/Advanced Materials Characterization Field/Electron Microscopy Group ror: https://ror.org/026v1ze26 - name: Masayuki Takeuchi role: author orcid: https://orcid.org/0000-0002-0207-0665 organization: National Institute for Materials Science department: Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Design and Function Group ror: https://ror.org/026v1ze26 - name: Junko Aimi role: author orcid: https://orcid.org/0000-0003-1339-0581 organization: National Institute for Materials Science department: Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Mechatronics Group ror: https://ror.org/026v1ze26 ## Contact agent ## Publisher organization: Royal Society of Chemistry ## Managing organization ## Keyword - subject: Organic Field Effect Transistor Memory schema: not_defined - subject: Star-shaped Polymer schema: not_defined - subject: Supramolecular Polymer schema: not_defined - subject: Phthalocyanine schema: not_defined - subject: Ambipolar Charge Trapping schema: not_defined - subject: Kelvin Probe Force Microscopy schema: not_defined ## Rights - identifier: https://creativecommons.org/licenses/by/4.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo ## Journal - title: Journal of Materials Chemistry C issn: '20507534' ## Conference ## Related item ## Funding - identifier: JP21K05220 funder_name: JSPS description: 高分子の自己組織化を利用する分子メモリ素子開発 - identifier: JP21F21052 funder_name: JSPS description: 光で制御する有機多値論理演算デバイスの開発 - identifier: JP23H00269 funder_name: JSPS description: 有機ヘテロ界面で制御する特異な電気伝導と革新的演算素子への応用 - identifier: JP23H04874 funder_name: JSPS description: メゾヒエラルキーの映像分子科学 - identifier: 2022-J-034 funder_name: Grant-in- Aid from Izumi Science and Technology Foundation description: 光応答機能を持つフレキシブル有機メモリ開発 ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: e27d7baa-f0a9-4e9b-95cb-09fa7be29191 filename: XInhao_JMCC2024.pdf content_type: application/pdf size: 2123155 md5: fe91dbf4ec6485243c8602ac57010d61 ## Thumbnail fileset_id: e27d7baa-f0a9-4e9b-95cb-09fa7be29191 filename: XInhao_JMCC2024.pdf