Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
59 (1991), S. 1494-1496
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The dc electrical conductivity of polycrystalline diamond films with submicron grain sizes has been studied as a function of the applied electric field up to the point of electrical breakdown. For electric fields below approximately 105 V/cm, the films exhibited predominantly ohmic behavior. For higher electric fields, however, the conductivity was field activated according to Poole's Law. The data is consistent with a Poole–Frenkel reduction of the ionization energy associated with Coulombic potentials surrounding ionizable centers, where the Coulombic potentials overlap. Consequently, the dielectric strength of the films in this study are lower than that reported for single-crystalline diamond.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.105298
Permalink
|
Location |
Call Number |
Expected |
Availability |