Simulation and fabrication of carbon nanotubes field emission pressure sensors

被引:9
作者
Qian, Kaiyou [1 ]
Chen, Ting
Yan, Bingyong
Lin, Yangkui
Xu, Dong
Sun, Zhuo
Cai, Bingchu
机构
[1] Shanghai Jiao Tong Univ, Res Inst Micronanometer Sci & Technol, Minist Educ, Key Lab Thin Film & Microfabricat Technol, Shanghai 200030, Peoples R China
[2] E China Normal Univ, Nanotech Ctr, Shanghai 200062, Peoples R China
关键词
carbon nanotubes; field emission; pressure sensors;
D O I
10.1016/j.apsusc.2005.06.029
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel field emission pressure sensor has been achieved utilizing carbon nanotubes (CNTs) as the electron source. The sensor consists of the anode sensing film fabricated by wet etching process and multi-wall carbon nanotubes (MWNTs) cathode in the micro-vacuum chamber. MWNTs on the silicon substrate were grown by thermal CVD. The prototype pressure sensor has a measured sensitivity of about 0.17-0.77 nA/Pa (101-550 KPa). The work shows the potential use of CNTs-based field-emitter in microsensors, such as accelerometers and tactile sensors. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:4198 / 4201
页数:4
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