論文 Ambipolar charge-trapping in self-assembled nanostructures of supramolecular miktoarm star-shaped copolymer with a zinc phthalocyanine core

Xinhao Zhong SAMURAI ORCID (Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Design and Function Group, National Institute for Materials ScienceROR) ; Debdatta Panigrahi (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group, National Institute for Materials ScienceROR) ; Ryoma Hayakawa SAMURAI ORCID (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group, National Institute for Materials ScienceROR) ; Yutaka Wakayama SAMURAI ORCID (Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials Field/Quantum Device Engineering Group, National Institute for Materials ScienceROR) ; Koji Harano SAMURAI ORCID (Center for Basic Research on Materials/Advanced Materials Characterization Field/Electron Microscopy Group, National Institute for Materials ScienceROR) ; Masayuki Takeuchi SAMURAI ORCID (Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Design and Function Group, National Institute for Materials ScienceROR) ; Junko Aimi SAMURAI ORCID (Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular Mechatronics Group, National Institute for Materials ScienceROR)

XInhao_JMCC2024.pdf
Download file (2.02MB)
Download as zip (1.87MB)
コレクション

引用
Xinhao Zhong, Debdatta Panigrahi, Ryoma Hayakawa, Yutaka Wakayama, Koji Harano, Masayuki Takeuchi, Junko Aimi. Ambipolar charge-trapping in self-assembled nanostructures of supramolecular miktoarm star-shaped copolymer with a zinc phthalocyanine core. Journal of Materials Chemistry C. 2024, (), .
SAMURAI

説明:

(abstract)

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.

権利情報:

キーワード: Organic Field Effect Transistor Memory, Star-shaped Polymer, Supramolecular Polymer, Phthalocyanine, Ambipolar Charge Trapping, Kelvin Probe Force Microscopy

刊行年月日: 2024-05-21

出版者: Royal Society of Chemistry

掲載誌:

  • Journal of Materials Chemistry C (ISSN: 20507534)

研究助成金:

  • JSPS JP21K05220 (高分子の自己組織化を利用する分子メモリ素子開発)
  • JSPS JP21F21052 (光で制御する有機多値論理演算デバイスの開発)
  • JSPS JP23H00269 (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)
  • JSPS JP23H04874 (メゾヒエラルキーの映像分子科学)
  • Grant-in- Aid from Izumi Science and Technology Foundation 2022-J-034 (光応答機能を持つフレキシブル有機メモリ開発)

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1039/D4TC01265H

関連資料:

その他の識別子:

連絡先:

更新時刻: 2024-06-25 12:30:21 +0900

MDRでの公開時刻: 2024-06-25 12:30:21 +0900

ファイル名 サイズ
ファイル名 XInhao_JMCC2024.pdf (サムネイル)
application/pdf 		サイズ 2.02MB 詳細