期刊论文详细信息
SENSORS AND ACTUATORS B-CHEMICAL 卷:188
Highly sensitive, transparent, and flexible gas sensors based on gold nanoparticle decorated carbon nanotubes
Article
Lee, Kangho1  Scardaci, Vittorio1  Kim, Hye-Young1  Hallam, Toby1  Nolan, Hugo1,2  Duesberg, Georg S.1,2 
[1] Trinity Coll Dublin, CRANN, Dublin 2, Ireland
[2] Trinity Coll Dublin, Sch Chem, Dublin 2, Ireland
关键词: Chemiresistor;    Carbon nanotube;    Gold nanoparticle;    Polyethylene terephthalate;    Ammonia;    Sensor;   
DOI  :  10.1016/j.snb.2013.07.048
来源: Elsevier
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【 摘 要 】

We report on a high performance flexible and transparent chemical sensor based on functionalised single-walled carbon nanotubes (SWCNTs). The SWCNT films were spray-deposited on transparent and flexible plastic substrates, and subsequently decorated with Au nanoparticles (AuNPs) providing a facile and cheap fabrication route. The electrical resistance of the films changed remarkably upon exposure to ammonia (NH3), AuNP decoration enhanced sensitivity to 255 ppb (parts-per-billion), one of the lowest reported so far. The reported sensor performance is a huge improvement towards low power consumption and its room temperature operation augers well for use in mobile devices for environmental protection and air quality control. (C) 2013 Elsevier B.V. All rights reserved.

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