Multi-walled carbon nanotube-based gas sensors for NH3 detection

被引：133

作者：

Wang, SG ^{[1
]}

Zhang, Q

Yang, DJ

Sellin, PJ

Zhong, GF

机构：

[1] Univ Surrey, Dept Phys, Sch Elect & Phys Sci, Guildford GU2 7XH, Surrey, England

[2] Nanyang Technol Univ, Clean Room & Characterizat Lab, Ctr Microelect, Sch Elect & Elect Engn, Singapore 639798, Singapore

[3] Waseda Univ, Ctr Excellence, Shinjuku Ku, Tokyo 1620041, Japan

来源：

关键词：

nanotubes; sensors; electrical conductivity; adsorption; chemical vapor deposition; ammonia (NH3);

D O I：

10.1016/j.diamond.2003.11.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multi-walled carbon nanotube (MWNT) based gas sensors for detecting gaseous molecules of ammonia (NH3) were developed. MWNTs were prepared using microwave plasma-enhanced chemical vapor deposition. The gas sensors, in which the nanotubes laid under the electrodes, were fabricated using electron-beam lithography and lift-off techniques. It is found that the conductance of MWNTs decreases when the sensors successively exposed to NH3 gas at room temperature of 25degreesC. The MWNT-based sensors are sensitive to NH3 gas. This suggests that the MWNTs could be a good candidate material for NH3 detection at room temperature. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1327 / 1332

页数：6

共 26 条

[1] Hydrogen desorption and adsorption measurements on graphite nanofibers [J].

Ahn, CC ;

Ye, Y ;

Ratnakumar, BV ;

Witham, C ;

Bowman, RC ;

Fultz, B .

APPLIED PHYSICS LETTERS, 1998, 73 (23) :3378-3380

[2] HIGH-RESOLUTION ELECTRON-MICROSCOPY AND INELASTIC LIGHT-SCATTERING OF PURIFIED MULTISHELLED CARBON NANOTUBES [J].

BACSA, WS ;

UGARTE, D ;

CHATELAIN, A ;

DEHEER, WA .

PHYSICAL REVIEW B, 1994, 50 (20) :15473-15476

[3] CONDUCTING POLYMER GAS SENSORS .1. FABRICATION AND CHARACTERIZATION [J].

BARTLETT, PN ;

ARCHER, PBM ;

LINGCHUNG, SK .

SENSORS AND ACTUATORS, 1989, 19 (02) :125-140

[4] Sputtered thin films of CuBr for ammonia microsensors: morphology, composition and ageing [J].

Bendahan, M ;

Lauque, P ;

Lambert-Mauriat, C ;

Carchano, H ;

Seguin, JL .

SENSORS AND ACTUATORS B-CHEMICAL, 2002, 84 (01) :6-11

[5] Hydrogen storage in graphite nanofibers [J].

Chambers, A ;

Park, C ;

Baker, RTK ;

Rodriguez, NM .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (22) :4253-4256

[6] Adsorption of NH3 and NO2 molecules on carbon nanotubes [J].

Chang, H ;

Lee, JD ;

Lee, SM ;

Lee, YH .

APPLIED PHYSICS LETTERS, 2001, 79 (23) :3863-3865

[7] Carbon-nanotube-based resonant-circuit sensor for ammonia [J].

Chopra, S ;

Pham, A ;

Gaillard, J ;

Parker, A ;

Rao, AM .

APPLIED PHYSICS LETTERS, 2002, 80 (24) :4632-4634

[8] Remote detection of gaseous ammonia using the near infrared transmission properties of polyaniline [J].

Christie, S ;

Scorsone, E ;

Persaud, K ;

Kvasnik, F .

SENSORS AND ACTUATORS B-CHEMICAL, 2003, 90 (1-3) :163-169

[9] Extreme oxygen sensitivity of electronic properties of carbon nanotubes [J].

Collins, PG ;

Bradley, K ;

Ishigami, M ;

Zettl, A .

SCIENCE, 2000, 287 (5459) :1801-1804

[10] Application of conducting polyaniline as sensor material for ammonia [J].

Dhawan, SK ;

Kumar, D ;

Ram, MK ;

Chandra, S ;

Trivedi, DC .

SENSORS AND ACTUATORS B-CHEMICAL, 1997, 40 (2-3) :99-103

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