Acetone gas sensors composed of carbon nanotubes with adsorbed Au nanoparticles on plastic substrate
Acetone gas sensors composed of carbon nanotubes with adsorbed Au nanoparticles on plastic substrate
复制标题
由塑料基板上吸附金纳米颗粒的碳纳米管组成的丙酮气体传感器
DOI：
10.1007/s00542-017-3562-y
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Z. Lin
中科院分区：
文献类型：
--
作者：
Steven R. Young;Z. Lin
碳纳米管（CNTs）已被证明是最有趣的气敏材料之一。本研究采用一种简单的方法，直接转移的高密度碳纳米管从SiO2/Si基板上的丙酮气体传感器在室温下的柔性基板。柔性气体传感器表现出高灵敏度为4.63%，在室温下为环境丙酮气体浓度为800 ppm，分别。此外，基于CNT的化学电阻器的气体响应归因于Au改性的半导体CNT中的p型导电性。该传感器对气体浓度的响应具有很好的可重复性，这代表了该类设备向低成本大规模生产迈出的重要一步。
Carbon nanotubes (CNTs) have been demonstrated to be one of the most interesting materials for gas sensing. This study applies a simple method for the direct transfer of high-density CNTs from a SiO2/Si substrate to a flexible substrate for acetone gas sensing at room temperature. The flexible gas sensor exhibited high sensitivities of 4.63% at room temperature for ambient acetone gas concentrations of 800 ppm, respectively. In addition, the gas response of the CNT-based chemiresistor is attributed to p-type conductivity in the Au-modified semiconducting CNTs. Very good repeatability of the sensor response to gas concentration is demonstrated, representing a major step toward the low-cost large-scale production of this class of device.