論文

基本情報

氏名 山本 薫
氏名(カナ) ヤマモト カオル
氏名(英語) Yamamoto Kaoru
所属 理学部 物理学科
職名 教授
researchmap研究者コード 5000032517
researchmap機関 岡山理科大学

題名

Orbital hybridization of donor and acceptor to enhance the conductivity of mixed-stack complexes

単著・共著の別

共著

著者

Tomoko Fujino, Ryohei Kameyama, Kota Onozuka, Kazuki Matsuo, Shun Dekura, Tatsuya Miyamoto, Zijing Guo, Hiroshi Okamoto, Toshikazu Nakamura, Kazuyoshi Yoshimi, Shunsuke Kitou, Taka-hisa Arima, Hiroyasu Sato, Kaoru Yamamoto, Akira Takahashi, Hiroshi Sawa, Yuiga Nakamura, Hatsumi Mori

概要

Mixed-stack complexes which comprise columns of alternating donors and acceptors are organic conductors with typically poor electrical conductivity because they are either in a neutral or highly ionic state. This indicates that conductive carriers are insufficient or are mainly localized. In this study, mixed-stack complexes that uniquely exist at the neutral–ionic boundary were synthesized by combining donors (bis(3,4-ethylenedichalcogenothiophene)) and acceptors (fluorinated tetracyanoquinodimethanes) with similar energy levels and orbital symmetry between the highest occupied molecular orbital of the donor and the lowest unoccupied molecular orbital of the acceptor. Surprisingly, the orbitals were highly hybridized in the single-crystal complexes, enhancing the room-temperature conductivity (10−4–0.1 S cm−1) of mixed-stack complexes. Specifically, the maximum conductivity was the highest reported for single-crystal mixed-stack complexes under ambient pressures. The unique electronic structures at the neutral–ionic boundary exhibited structural perturbations between their electron-itinerant and localized states, causing abrupt temperature-dependent changes in their electrical, optical, dielectric, and magnetic properties.

発表雑誌等の名称

Nature Communications

出版者

Springer Nature Limited

15

開始ページ

3028-1

終了ページ

3028-13

発行又は発表の年月

2024/04

査読の有無

有り

招待の有無

無し

記述言語

英語

掲載種別

研究論文(学術雑誌)

ISSN

ID:DOI

https://doi.org/10.1038/s41467-024-47298-1

ID:NAID(CiNiiのID)

ID:PMID

JGlobalID

arXiv ID

ORCIDのPut Code

DBLP ID