scholarly journals Effect of rapid thermal annealing on barrier height and 1/f noise of Ni/GaN Schottky barrier diodes

2015 ◽  
Vol 107 (9) ◽  
pp. 093502 ◽  
Author(s):  
Ashutosh Kumar ◽  
M. Latzel ◽  
S. Christiansen ◽  
V. Kumar ◽  
R. Singh
2008 ◽  
Vol 22 (14) ◽  
pp. 2309-2319 ◽  
Author(s):  
K. ERTURK ◽  
M. C. HACIISMAILOGLU ◽  
Y. BEKTORE ◽  
M. AHMETOGLU

The electrical characteristics of Cr / p – Si (100) Schottky barrier diodes have been measured in the temperature range of 100–300 K. The I-V analysis based on thermionic emission (TE) theory has revealed an abnormal decrease of apparent barrier height and increase of ideality factor at low temperature. The conventional Richardson plot exhibits non-linearity below 200 K with the linear portion corresponding to activation energy 0.304 eV and Richardson constant (A*) value of 5.41×10-3 Acm-2 K -2 is determined from the intercept at the ordinate of this experimental plot, which is much lower than the known value of 32 Acm-2 K -2 for p-type Si . It is demonstrated that these anomalies result due to the barrier height inhomogeneities prevailing at the metal-semiconductor interface. Hence, it has been concluded that the temperature dependence of the I-V characteristics of the Cr/p – Si Schottky barrier diode can be successfully explained on the basis of TE mechanism with a Gaussian distribution of the barrier heights. Furthermore, the value of the Richardson constant found is much closer than that obtained without considering the inhomogeneous barrier heights.


2010 ◽  
Vol 13 (5-6) ◽  
pp. 371-375 ◽  
Author(s):  
A. Chawanda ◽  
K.T. Roro ◽  
F.D. Auret ◽  
W. Mtangi ◽  
C. Nyamhere ◽  
...  

2007 ◽  
Vol 253 (18) ◽  
pp. 7467-7470 ◽  
Author(s):  
H. Doğan ◽  
H. Korkut ◽  
N. Yıldırım ◽  
A. Turut

Sign in / Sign up

Export Citation Format

Share Document