Room temperature gas sensing properties of ultrathin carbon nanotube films by surfactant-free dip coating
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- 作者：Carlo PilotoaAuthor Vitae ; Francesca MirribAuthor Vitae ; Elie Amram BengiobAuthor Vitae ; Marco Notariannia ; cAuthor Vitae ; Bharati GuptaaAuthor Vitae ; Mahnaz ShafieiaAuthor Vitae ; Matteo PasqualibAuthor Vitae ; Nunzio Mottaa ; n.motta@qut.edu.au" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Carbon nanotubes ; Ultrathin films ; Gas sensors ; Surfactant-free dip coating ; X-ray photoelectron microscopy ; Transmission electron microscopy
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：227
- 期：Complete
- 页码：128-134
- 全文大小：1887 K
文摘
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Ultrathin CNTs films produced by surfactant free dip coating using chlorosulfonic acid as working solution.
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Surface area for gas interaction increased upon sonication whilst keeping film thickness unaltered.
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Sensitivity as low as to 1 ppm NO2 and 7 ppm NH3 at room temperature.
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5 nm thick sensor exhibited the fastest recovery and largest response as compared to 3 nm and 10 nm sensors.
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Scalable, low cost and low power sensor.