Dielectrophoretic modification of carbon nanotube with ZnO nanoparticles for NO2 gas sensing

Shota Inoue, Yushi Nanba, Michihiko Nakano, Junya Suehiro

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

2 被引用数 (Scopus)

抄録

We developed dielectrophoresis (DEP)-based fabrication method of a carbon nanotube (CNT) NO2 gas sensor that integrates CNT on a microelectrode. The dielectrophoretic integration method can also be used to deposit nanoparticles on CNT surface. This study demonstrates that the modification of the CNT with zinc oxide nanoparticles (ZnO NPs) by dielectrophoresis This sensor were tested by measuring resistance change of the sensor against 1ppm concentration of NO2 at room temperature. The resistance of 0.025 mg/ml and 1.25 mg/ml ZnO NPs-decorated CNT gas sensor rapidly increased followed by slow decreased. This rapid resistance change was saturated by deposition of 25 mg/ml ZnO NPs, and behaved similar to ZnO NW gas sensor. The resistance decrease can be considered as CNT response. The rapid resistance increase cannot be explained by simply summing the responses of the SWCNT sensor and ZnO sensor. The depletion layer of pn-junction due to connection of the CNT and ZnO can be concerned.

本文言語英語
ホスト出版物のタイトルProceedings of the 2016 IEEE Region 10 Conference, TENCON 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ページ3054-3057
ページ数4
ISBN(電子版)9781509025961
DOI
出版ステータス出版済み - 2月 8 2017
イベント2016 IEEE Region 10 Conference, TENCON 2016 - Singapore, シンガポール
継続期間: 11月 22 201611月 25 2016

出版物シリーズ

名前IEEE Region 10 Annual International Conference, Proceedings/TENCON
ISSN(印刷版)2159-3442
ISSN(電子版)2159-3450

その他

その他2016 IEEE Region 10 Conference, TENCON 2016
国/地域シンガポール
CitySingapore
Period11/22/1611/25/16

!!!All Science Journal Classification (ASJC) codes

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学

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