抄録
We have previously demonstrated a fabrication method of single-walled carbon nanotubes (SWCNTs) based gas sensor by employing dielectrophoresis. Because this method uses the SWCNTs that are synthesized in bulk, it is a cheaper and more flexible method than that of on-site synthesized. This method can quantify the amount of trapped nanotubes on a real time basis by monitoring the electrical impedance of the sensor simultaneously with its fabrication. In this study, semiconducting SWCNTs, which served as transducer in gas detection, were separated from commercially available mixture of semiconducting and metallic ones, and were further enriched by using a spin column and dextran-based gel. The separation and enrichment of the semiconducting SWCNTs were confirmed by measuring their optical and electrical properties. The CNT gas sensor fabricated using separated semiconducting SWCNTs was highly sensitive against nitrogen dioxide gas, - more sensitive by two times than that fabricated using the pristine SWCNTs mixture.
| 元の言語 | 英語 |
|---|---|
| ホスト出版物のタイトル | 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 |
| ページ | 403-407 |
| ページ数 | 5 |
| DOI | |
| 出版物ステータス | 出版済み - 12 1 2011 |
| イベント | 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 - Jeju, 大韓民国 継続期間: 10 18 2011 → 10 21 2011 |
出版物シリーズ
| 名前 | 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 |
|---|
その他
| その他 | 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011 |
|---|---|
| 国 | 大韓民国 |
| 市 | Jeju |
| 期間 | 10/18/11 → 10/21/11 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
これを引用
Separation and enrichment of semiconducting carbon nanotubes and its application to highly sensitive carbon nanotube gas sensor. / Fujioka, M.; Watanabe, H.; Martin, Y.; Nakano, M.; Suehiro, J.
2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011. 2011. p. 403-407 6155387 (2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011).研究成果: 著書/レポートタイプへの貢献 › 会議での発言
}
TY - GEN
T1 - Separation and enrichment of semiconducting carbon nanotubes and its application to highly sensitive carbon nanotube gas sensor
AU - Fujioka, M.
AU - Watanabe, H.
AU - Martin, Y.
AU - Nakano, M.
AU - Suehiro, J.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - We have previously demonstrated a fabrication method of single-walled carbon nanotubes (SWCNTs) based gas sensor by employing dielectrophoresis. Because this method uses the SWCNTs that are synthesized in bulk, it is a cheaper and more flexible method than that of on-site synthesized. This method can quantify the amount of trapped nanotubes on a real time basis by monitoring the electrical impedance of the sensor simultaneously with its fabrication. In this study, semiconducting SWCNTs, which served as transducer in gas detection, were separated from commercially available mixture of semiconducting and metallic ones, and were further enriched by using a spin column and dextran-based gel. The separation and enrichment of the semiconducting SWCNTs were confirmed by measuring their optical and electrical properties. The CNT gas sensor fabricated using separated semiconducting SWCNTs was highly sensitive against nitrogen dioxide gas, - more sensitive by two times than that fabricated using the pristine SWCNTs mixture.
AB - We have previously demonstrated a fabrication method of single-walled carbon nanotubes (SWCNTs) based gas sensor by employing dielectrophoresis. Because this method uses the SWCNTs that are synthesized in bulk, it is a cheaper and more flexible method than that of on-site synthesized. This method can quantify the amount of trapped nanotubes on a real time basis by monitoring the electrical impedance of the sensor simultaneously with its fabrication. In this study, semiconducting SWCNTs, which served as transducer in gas detection, were separated from commercially available mixture of semiconducting and metallic ones, and were further enriched by using a spin column and dextran-based gel. The separation and enrichment of the semiconducting SWCNTs were confirmed by measuring their optical and electrical properties. The CNT gas sensor fabricated using separated semiconducting SWCNTs was highly sensitive against nitrogen dioxide gas, - more sensitive by two times than that fabricated using the pristine SWCNTs mixture.
UR - http://www.scopus.com/inward/record.url?scp=84860460920&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84860460920&partnerID=8YFLogxK
U2 - 10.1109/NMDC.2011.6155387
DO - 10.1109/NMDC.2011.6155387
M3 - Conference contribution
AN - SCOPUS:84860460920
SN - 9781457721397
T3 - 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
SP - 403
EP - 407
BT - 2011 IEEE Nanotechnology Materials and Devices Conference, NMDC 2011
ER -