A nanowire sensor for aromatic nitro compounds using charge transfer interaction

Kumi Masunaga, Motohiro Sato, Kenshi Hayashi, Kiyoshi Toko

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

Electron acceptor molecules form charge transfer (CT) complexes with electron donors. CT complexes are known as an organic conductive material. In this report, we suggest a nanowire sensor to detect electron-acceptive aromatic nitro compounds by conductance switching brought on by charge transfer interaction. The sensor surface possesses a molecular wire network formed by bridging nanogaps between Au nanoparticles (Au-NPs) with electron donor oligothiophene. The Au-NPs were fabricated by sputter deposition with controlling the particle-size and the gap-size. We confirmed the oligothiophene bridging by resistivity and the formation of CT interaction between oligothiophene and electron acceptors by fluorescence quenching. The conductance of the sensor electrode was increased by adsorption of electron acceptors, such as iodine and aromatic nitro compounds.

本文言語英語
ホスト出版物のタイトルTRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems
ページ1413-1416
ページ数4
DOI
出版ステータス出版済み - 12 1 2007
イベント4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07 - Lyon, フランス
継続期間: 6 10 20076 14 2007

出版物シリーズ

名前TRANSDUCERS and EUROSENSORS '07 - 4th International Conference on Solid-State Sensors, Actuators and Microsystems

その他

その他4th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS '07
国/地域フランス
CityLyon
Period6/10/076/14/07

All Science Journal Classification (ASJC) codes

  • 制御およびシステム工学
  • 電子工学および電気工学

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