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Diameter Dependent Current-Voltage Characteristics of InSb Nanowires

Published online by Cambridge University Press:  22 August 2011

Miroslav Penchev ,
Jiebin Zhong ,
Jian Lin ,
Cengiz S. Ozkan  and
Mihrimah Ozkan
Miroslav Penchev
Affiliation:
Department of Electrical Engineering, University of California, Riverside, CA, United States
Jiebin Zhong
Affiliation:
Department of Mechanical Engineering, University of California, Riverside, CA, United States
Jian Lin
Affiliation:
Department of Mechanical Engineering, University of California, Riverside, CA, United States
Cengiz S. Ozkan
Affiliation:
Department of Mechanical Engineering, University of California, Riverside, CA, United States
Mihrimah Ozkan
Affiliation:
Department of Electrical Engineering, University of California, Riverside, CA, United States
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Abstract

Single crystalline Indium Antimonide (InSb) nanowires were synthesized by chemical vapor deposition (CVD) technique, using gold (Au) nanoparticles as catalyst, via a vapor liquid solid mechanism. Structural properties of the as-grown InSb nanowires were investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Nanowire field effect transistors (NWFETs) were fabricated in back-gate configuration, on Si/SO2 substrates, using SiO2 as gate insulator. The diameter of InSb nanowires used in the fabricated devices varied from 15-80 nm. Current-voltage measurements were conducted to determine the dependence of NWFETs parameters on the InSb nanowire diameter. Carrier mobility was shown to decrease with decrease of nanowire diameter. Temperature dependen current-voltage measurements were conducted to determine the effect of operating temperature on the InSb NWFET device performance.

Keywords

electronic materialnanostructuresemiconducting
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1350: Symposium EE – Semiconductor Nanowires—From Fundamentals to Applications , 2011 , mrss11-1350-ee06-03
Copyright
Copyright © Materials Research Society 2011

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