Wakahara T, Nagaoka K, Hirata C, Miyazawa K, Fujii K, Matsushita Y, Ito O, Takagi M, Shimazaki T, Tachikawa M, Wada Y, Yagyu S, Liu Y, Nakajima Y, Tsukagoshi K. Fullerene C
70/porphyrin hybrid nanoarchitectures: single-cocrystal nanoribbons with ambipolar charge transport properties.
RSC Adv 2022;
12:19548-19553. [PMID:
35865602 PMCID:
PMC9258400 DOI:
10.1039/d2ra02669d]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022] Open
Abstract
In recent years, supramolecular cocrystals containing organic donors and acceptors have been explored as active components in organic field-effect transistors (FETs). Herein, we report the synthesis of novel single-cocrystal nanoribbons with ambipolar charge transport characteristics from C70 and 5,10,15,20-tetrakis(3,5-dimethoxyphenyl)porphyrin (3,5-TPP) in a 3 : 2 ratio. The C70/3,5-TPP nanoribbons exhibited a new strong absorption band in the near-infrared region, indicating the presence of charge-transfer interactions between C70 and 3,5-TPP in the cocrystals. We elucidated the mechanism of the charge-transport properties of the nanoribbons using photoemission yield spectroscopy in air and theoretical calculations. A strong interaction between porphyrins in the one-dimensional porphyrin chains formed in C70/3,5-TPP nanoribbons, which was confirmed by single-crystal X-ray diffraction, plays a crucial role in their hole transport properties.
The one-dimensional porphyrin chains in the cocrystal play a very important role in the hole transport properties of C70/porphyrin nanoribbons.![]()
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