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Attenuation of Surface Acoustic Waves by Carbon Nanotubes

Published online by Cambridge University Press:  11 February 2011

Daumantas Ciplys ,
Sergey Rumyantsev ,
Michael S. Shur ,
Robert Vajtai ,
Bingqing Wei ,
Pulickel Ajayan ,
Remis Gaska  and
Romualdas Rimeika
Daumantas Ciplys
Affiliation:
Department of Electrical, Computer, and Systems Engineering and Center for Integrated, Elelectronics, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A. Department of Radiophysics, Vilnius University, Vilnius 2040, Lithuania
Sergey Rumyantsev
Affiliation:
Department of Electrical, Computer, and Systems Engineering and Center for Integrated, Elelectronics, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
Michael S. Shur
Affiliation:
Department of Electrical, Computer, and Systems Engineering and Center for Integrated, Elelectronics, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
Robert Vajtai
Affiliation:
Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, U.S.A.
Bingqing Wei
Affiliation:
Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, U.S.A.
Pulickel Ajayan
Affiliation:
Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY, 12180, U.S.A.
Remis Gaska
Affiliation:
Sensor Electronic Technology, Inc., 1195 Atlas Road, Columbia, SC 29209, U.S.A.
Romualdas Rimeika
Affiliation:
Department of Radiophysics, Vilnius University, Vilnius 2040, Lithuania
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Abstract

A strong attenuation of surface acoustic waves in the range of 30 to 100 MHz by singlewalled carbon nanotube layers deposited on the surface of piezoelectric lithium niobate single crystal has been observed. The attenuation exhibits non-monotonous dependence on nanotube density. This attenuation is attributed to the acoustoelectronic interaction between electric fields of the SAW and charge carriers in the nanotubes. The experimental results are in the qualitative agreement with the theory of acoustoelectronic interaction in inhomogeneous structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 750: Symposium Y – Surface Engineering 2002–Synthesis, Characterization and Applications , 2002 , Y5.46
Copyright
Copyright © Materials Research Society 2003

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References

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