Raman spectra of aligned carbon micro-coils and their impedance characteristics under loads

Journal Article · Fri Feb 21 00:00:00 EST 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4863140· OSTI ID:22278050

Tao, Wang; Yabo, Zhu; Heliang, Fan; Zhicheng, Ju; Lei, Chen; Zhengyuan, Wang ^[1]

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1. School of Materials Science and Engineering, China University of Mining and Technology, Xu Zhou, Jiangsu 221116 (China)

Scanning and transmission electron microscopy were used to characterize the morphology of the carbon microcoils (CMCs). The Raman spectra showed that CMCs had local regular structure as I{sub D}/I{sub G} = 0.841. Then, aligned CMCs/silicone–rubber composites (5 × 5 × 1 mm{sup 3}) were fabricated by coating of silicone rubber on the CMCs. Their alternating current impedance characteristics were measured as a function of applied load and the pressure sensitivity was discussed. The results showed that the impedance decreased as the increasing applied load, and the sample with less CMCs owned high pressure sensitivity, which indicated a novel composite film could act as an alternative of tactile sensor.

• OSTI ID: 22278050
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
ALTERNATING CURRENT
CARBON
COMPOSITE MATERIALS
IMPEDANCE
MORPHOLOGY
PRESSURE MEASUREMENT
RAMAN SPECTRA
RUBBERS
SENSITIVITY
SENSORS
SILICONES
THIN FILMS
TRANSMISSION ELECTRON MICROSCOPY