]>Surface Modification of Carbon Nanotube Networked Films with Au Nanoclusters for Enhanced <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mrow><mml:mtext>NO</mml:mtext></mml:mrow><mml:mtext>2</mml:mtext></mml:msub></mml:mrow></mml:math> Gas Sensing Applications : Figure 8
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Figure 8: Time online responses of two chemiresistors based on unmodified CNTs and 10-nm loaded Au-modified CNTs (CNTs_Au-10 nm), exposed to 30-minute pulses of NO2 gas ranging from 100 to 600 ppb, at sensor temperature of 200°C. The thickness of CNTs films is about 250–300 nm.