Cited Article: Ghosh, S. Carbon nanotube flow sensors
Alert Expires: 09 NOV 2010
Number of Citing Articles: 1 new records this week (1 in this e-mail)
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Title:
Experimental Investigation on the Dynamic Response of Thermal EG-CNT Flow Sensors
Authors:
Qu, YL; Dong, ZL; Tung, SCH; Li, WJ
Author Full Names:
Qu, Yan-li; Dong, Zai-li; Tung, Steve C. H.; Li, Wen J.
Source:
2009 4TH IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1 AND 2 : 813-817 2009
Language:
English
Document Type:
Proceedings Paper
Author Keywords:
Aqueous Flow Sensor; Carbon Nanotubes; Heat Dissipation; Ultra-Low-Power Sensor; Thermal Effect
Abstract:
Features of the I-V characteristics and the electrical properties of electronics-grade carbon nanotube (EG-CNT) sensors, which were fabricated and integrated in micro fluidic system by combining MEMS-compatible fabrication technology with AC dielectrophoresis technique, were investigated at room temperature to account for significant Joule heating effect under high activation current. The experimental results together with the traditional heat transfer theory indicate that the nonlinearity of the I-V curves and the negative resistance change of the EG-CNT sensors are basically induced and controlled by the thermal effect. In particular, it was found that the lower the original resistance of EG-CNT sensors, the higher the normalized resistance change and lower the sensor's time response. Then, the sensor's capability for aqueous flow detection was exploited upon exposure to DI-water flow in micro fluidic system. The operation power of the sensors was found to be extremely low!
, i.e., in the range of mu W. Furthermore, higher activation power may degrade the sensor's responsivity.
Reprint Address:
Li, WJ, Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China.
Research Institution addresses:
[Qu, Yan-li; Dong, Zai-li; Tung, Steve C. H.; Li, Wen J.] Chinese Acad Sci, Shenyang Inst Automat, State Key Lab Robot, Shenyang, Peoples R China
Cited References:
GHOSH S, 2003, SCIENCE, V299, P1042, DOI 10.1126/science.1079080.
KURODA MA, 2006, APPL PHYS LETT, V89, P3102.
NI CN, 2007, P MAT RES SOC S.
OUYANG Y, 2006, APPL PHYS LETT, V89, P83122.
POP E, 2005, PHYS REV LETT, V95, P5505.
QU YL, 2007, IEEE T NANO IN PRESS, P11.
SINHA N, 2006, J NANOSCI NANOTECHNO, V6, P573, DOI 10.1166/jnn.2006.121.
ZOHAR Y, 2003, HEAT CONVECTION MICR, P53.
Cited Reference Count:
8
Times Cited:
0
Publisher:
IEEE; 345 E 47TH ST, NEW YORK, NY 10017 USA
IDS Number:
BMO78
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