VARIABLE RANGE HOPPING CONDUCTION IN NiO/Al2O3 NANOCOMPOSITES

2005 ◽  
Vol 04 (02) ◽  
pp. 163-169 ◽  
Author(s):  
SALAH A. MAKHLOUF ◽  
KAMAL M. S. KHALIL
Keyword(s):  
Electrical Resistivity ◽  
Electrical Properties ◽  
High Surface ◽  
High Surface Area ◽  
Textural Properties ◽  
Nanocomposite Materials ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Variable Range Hopping Conduction

The formation and electrical properties of high surface area NiO/Al2O3 nanocomposite materials with composition ranging from 5 to 30% w/w have been studied. The temperature dependence of the DC electrical resistivity was monitored in the temperature range 350–600 K. The results revealed correlation between electrical resistivity and textural properties. The conductivity results were discussed in terms of variable-range-hopping mechanism.

THE EFFECTS OF DEFECTS ON THE ELECTRICAL PROPERTIES OF AMORPHOUS CARBON LAYER FORMED BY ION IMPLANTATION INTO CVD DIAMOND FILMS

2000 ◽  
Vol 14 (02n03) ◽  
pp. 218-223 ◽  
Author(s):  
YOSHIYUKI SHOW ◽  
DAISUKE SEKINE ◽  
HIROKAZU ITO ◽  
TOMIO IZUMI ◽  
MITSUO IWASE
Keyword(s):  
Electrical Properties ◽  
Ion Implantation ◽  
Amorphous Carbon ◽  
Carbon Layer ◽  
High Density ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Amorphous Carbon Layer ◽  
Variable Range Hopping Conduction

Correlation between defects and electrical properties in an amorphous carbon layer, formed by ion implantation into diamond film, have been studied by ESR method. The ion implantation produced dense defect structures (carbon dangling bonds) in the surface layer and led the implanted layer to a low resistance, as the high-density defect introduced variable range hopping conduction. The variable range hopping conduction was observed even after annealing at 1000°C, because the high-density defect existed in the surface region.

scholarly journals Transition of conduction mechanism from band to variable-range hopping conduction due to Al doping in heavily Al-doped 4H-SiC epilayers

2019 ◽  
Vol 58 (9) ◽  
pp. 098004 ◽  
Author(s):  
Hideharu Matsuura ◽  
Akinobu Takeshita ◽  
Tatsuya Imamura ◽  
Kota Takano ◽  
Kazuya Okuda ◽  
...  
Keyword(s):  
Conduction Mechanism ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Al Doping ◽  
Variable Range ◽  
Variable Range Hopping Conduction

Variable Range Hopping Conduction in CuInSe2in the Presence of a Coulomb Gap

1993 ◽  
Vol 32 (S3) ◽  
pp. 675 ◽  
Author(s):  
J. G. Albornoz ◽  
E. Hernández ◽  
S. M. Wasim ◽  
P. Bocaranda
Keyword(s):  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Coulomb Gap ◽  
Variable Range ◽  
Variable Range Hopping Conduction

Variable range hopping conduction in ZnO nanocrystal thin films

2018 ◽  
Vol 29 (41) ◽  
pp. 415202 ◽  
Author(s):  
Brian T Benton ◽  
Benjamin L Greenberg ◽  
Eray Aydil ◽  
Uwe R Kortshagen ◽  
S A Campbell
Keyword(s):  
Thin Films ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Variable Range Hopping Conduction ◽  
Zno Nanocrystal

Variable-range-hopping conduction and the Poole-Frenkel effect in a copper polyaniline vermiculite intercalation compound

1993 ◽  
Vol 47 (20) ◽  
pp. 13664-13673 ◽  
Author(s):  
Michael J. Kellicutt ◽  
Itsuko S. Suzuki ◽  
Charles R. Burr ◽  
Masatsugu Suzuki ◽  
Masao Ohashi ◽  
...  
Keyword(s):  
Intercalation Compound ◽  
Hopping Conduction ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Frenkel Effect ◽  
Variable Range Hopping Conduction
Sign in / Sign up

Export Citation Format

Share Document