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ID 60785
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Guo, Yuxin Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
Yoshioka, Kaito Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
Hamao, Shino Research Institute for Interdisciplinary Science, Okayama University
Kubozono, Yoshihiro Research Institute for Interdisciplinary Science, Okayama University ORCID Kaken ID publons researchmap
Tani, Fumito Institute for Materials Chemistry and Engineering, Kyushu University
Goto, Kenta Institute for Materials Chemistry and Engineering, Kyushu University
Okamoto, Hideki Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University ORCID Kaken ID researchmap
Abstract
Picene derivatives incorporating imide moieties along the long-axis direction of the picene core (Cn-PicDIs) were conveniently synthesized through a four-step synthesis. Photochemical cyclization of dinaphthylethenes was used as the key step for constructing the picene skeleton. Field-effect transistor (FET) devices of Cn-PicDIs were fabricated by using ZrO2 as a gate substrate and their FET characteristics were investigated. The FET devices showed normally-off n-channel operation; the averaged electron mobility (μ) was evaluated to be 2(1) × 10−4, 1.0(6) × 10−1 and 1.4(3) × 10−2 cm2 V−1 s−1 for C4-PicDI, C8-PicDI and C12-PicDI, respectively. The maximum μ value as high as 2.0 × 10−1 cm2 V−1 s−1 was observed for C8-PicDI. The electronic spectra of Cn-PicDIs in solution showed the same profiles irrespective of the alkyl chain lengths. In contrast, in thin films, the UV absorption and photoelectron yield spectroscopy (PYS) indicated that the lowest unoccupied molecular orbital (LUMO) level of Cn-PicDIs gradually lowered upon the elongation of the alkyl chains, suggesting that the alkyl chains modify intermolecular interactions between the Cn-PicDI molecules in thin films. The present results provide a new strategy for constructing a high performance n-channel organic semiconductor material by utilizing the electronic features of phenacenes.
Published Date
2020-08-26
Publication Title
RSC Advances
Volume
volume10
Issue
issue52
Publisher
Royal Society of Chemistry
Start Page
31547
End Page
31552
ISSN
2046-2069
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
© The Royal Society of Chemistry
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publisher
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1039/D0RA06629J
License
https://creativecommons.org/licenses/by-nc/3.0/
Funder Name
Ministry of Education, Culture, Sports, Science and Technology
助成番号
26105004
17K05976
17K05500
18K04940
18K18736
19H02676
20K05648