Abstract
A nanocapacitor with ultra high capacitance (718 +/- 0.2 pF) has been fabricated using electro-deposited Au nanowires manipulated between two Au microelectrodes by the dielectrophoresis technique. A high dc resistance value (similar to 100 M Omega) and nonlinear current-voltage characteristics indicate the formation of a dielectric interface between the nanowires. From frequency dependent conductivity, it is seen that the interface exhibits a giant dielectric permittivity (epsilon similar to 1.8x107), which shows no frequency dispersion over the range from 30 Hz to 1 MHz. The enhancement of this permittivity value is attributed to the formation of a disordered interface containing gold atoms disrupted from the surface of the Au nanowires.
Date of this Version
May 2006
Recommended Citation
Saha, S. K.; DaSilva, Manuel; Hang, qhang@purdue.edu; Sands, Timothy D.; and Janes, David B., "A nanocapacitor with giant dielectric permittivity" (2006). Other Nanotechnology Publications. Paper 25.
https://docs.lib.purdue.edu/nanodocs/25