1
|
Okamoto H, Hamao S, Eguchi R, Goto H, Takabayashi Y, Yen PYH, Liang LU, Chou CW, Hoffmann G, Gohda S, Sugino H, Liao YF, Ishii H, Kubozono Y. Synthesis of the extended phenacene molecules, [10]phenacene and [11]phenacene, and their performance in a field-effect transistor. Sci Rep 2019; 9:4009. [PMID: 30850618 PMCID: PMC6408568 DOI: 10.1038/s41598-019-39899-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 02/05/2019] [Indexed: 11/23/2022] Open
Abstract
The [10]phenacene and [11]phenacene molecules have been synthesized using a simple repetition of Wittig reactions followed by photocyclization. Sufficient amounts of [10]phenacene and [11]phenacene were obtained, and thin-film FETs using these molecules have been fabricated with SiO2 and ionic liquid gate dielectrics. These FETs operated in p-channel. The averaged measurements of field-effect mobility, <μ>, were 3.1(7) × 10−2 and 1.11(4) × 10−1 cm2 V−1 s−1, respectively, for [10]phenacene and [11]phenacene thin-film FETs with SiO2 gate dielectrics. Furthermore, [10]phenacene and [11]phenacene thin-film electric-double-layer (EDL) FETs with ionic liquid showed low-voltage p-channel FET properties, with <μ> values of 3(1) and 1(1) cm2 V−1 s−1, respectively. This study also discusses the future utility of the extremely extended π-network molecules [10]phenacene and [11]phenacene as the active layer of FET devices, based on the experimental results obtained.
Collapse
Affiliation(s)
- Hideki Okamoto
- Department of Chemistry, Okayama University, Okayama, 700-8530, Japan
| | - Shino Hamao
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
| | - Ritsuko Eguchi
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
| | - Hidenori Goto
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan
| | | | - Paul Yu-Hsiang Yen
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Luo Uei Liang
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chia-Wei Chou
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Germar Hoffmann
- Department of Physics, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | | | | | - Yen-Fa Liao
- National Synchrotron Radiation Center, Hsinchu, 30076, Taiwan
| | - Hirofumi Ishii
- National Synchrotron Radiation Center, Hsinchu, 30076, Taiwan
| | - Yoshihiro Kubozono
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530, Japan.
| |
Collapse
|