Chemical Vapor Detection Using Single-Walled Carbon Nanotubes
Chemical Vapor Detection Using Single-Walled Carbon Nanotubes
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DOI：
10.1002/chin.200649231
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发表时间：
2006-12
期刊：
影响因子：
--
通讯作者：
E. Snow;F. Perkins;J. Robinson
中科院分区：
文献类型：
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作者：
E. Snow;F. Perkins;J. Robinson
单壁碳纳米管具有独特的性质，使其成为化学传感的理想材料。然而，其极小的尺寸也对实现实用的传感器技术提出了技术挑战。在本教程中，我们将探讨将分子吸附物的存在转换为可测量的电子信号的转导物理学，并确定解决问题的方案，如纳米管器件制造和抑制商业传感器开发的大低频噪声。最后，我们研究了提供必要化学特异性的策略，以实现用于痕量化学蒸气检测的基于纳米管的检测系统。
Single-walled carbon nanotubes possess unique properties that make them a potentially ideal material for chemical sensing. However, their extremely small size also presents technical challenges for realizing a practical sensor technology. In this tutorial review we explore the transduction physics by which the presence of molecular adsorbates is converted into a measurable electronic signal, and we identify solutions to the problems such as nanotube device fabrication and large, low-frequency noise that have inhibited commercial sensor development. Finally, we examine strategies to provide the necessary chemical specificity to realize a nanotube-based detection system for trace-level chemical vapor detection.