2013 Fiscal Year Final Research Report
Flexible information devices using high-frequency step-edge organic transistors
| Project/Area Number |
23360006
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Chiba University |
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Principal Investigator |
KUDO Kazuhiro 千葉大学, 工学(系)研究科(研究院), 教授 (10195456)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Masatoshi 千葉大学, 大学院工学研究科, 准教授 (60332219)
ITO Kouichi 千葉大学, フロンティア医工学センター, 教授 (90108225)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 有機トランジスタ / 情報タグ / 有機半導体 / 印刷プロセス / ウエアラブルセンサ |
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| Research Abstract |
In this study, step-edge vertical-channel field-effect transistors (SVC-OFETs) were fabricated by nanoimprinting and wet printing processes and SVC-OFETs showed high cutoff frequencies of approximately 2 MHz by optimizing the device structure. This high performance of SVC-OFET is suitable to the manufacture of radio-frequency identification (RFID) tags. We demonstrate new active antenna elements for RFID tags in RF (raid frequency 13.56 MHz) region. High modulation more than 10 % was estimated by simulation and the fabricated RF-ID tags on a flexible substrate showed modulation factor of 5.6 %. Furthermore, we demonstrate that the SVC-OFET has advantages for wearable sensors for the future application fields.
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