Physics based modeling of AlGaN/GaN heterostructure Schottky diode gas sensor has been investigated for high sensitivity and linearity of the device. Here the surface and heterointerface properties are greatly exploited. The dependence of two dimensional electron gas (2DEG) upon the surface charges is mainly utilized. The simulation of Schottky diode has been done in Technology Computer Aided Design (TCAD) tool and I-V curves are generated, from the I-V curves 76% response has been recorded in presence of 500 ppm gas at a biasing voltage of 0.95 Volt.

1.
C. C.
Huang
,
H. I.
Chen
,
I. P.
Liu
,
C. C.
Chen
,
P. C.
Chou
,
J. K.
Liou
and
W. C.
Liu
,
Sensors and Actuator B
190
,
913
921
(
2014
).
2.
Y. L.
Wang
,
B. H.
Chu
,
K. H.
Chen
,
C. Y.
Chang
,
T. P.
Lele
,
Y.
Tseng
,
S. J.
Pearton
,
J.
Ramage
,
D.
Hooten
,
A.
Dabiran
,
P. P.
Chow
and
F.
Ren
,
Appl. Phys. Lett.
93
,
262101
(
2008
).
3.
S. Y.
Chiu
,
H. W.
Huang
,
T. H.
Huang
,
K. C.
Liang
,
K. P.
Liu
,
J. H.
Tsai
and
W. S.
Lour
,
Int. J. Hydrogen Energy
34
,
5604
5615
(
2009
).
4.
R.
Mehandru
,
B.
Luo
,
B. S.
Kang
,
J.
Kim
,
F.
Ren
,
S. J.
Pearton
,
C. C.
Pan
,
G. T.
Chen
and
J. I.
Chyi
,
Solid State Electronics
48
,
351
353
(
2004
).
5.
G.
Steinhoff
,
M.
Hermann
,
W. J.
Schaff
,
L. F.
Eastman
,
M.
Stutzmann
and
M.
Eickhoff
,
Appl. Phys. Lett.
83
,
177
179
(
2003
).
6.
J.
Schalwig
,
G.
Muller
,
O.
Ambacher
and
M.
Stutzmann
,
phys. stat. sol. a
185
,
39
45
(
2001
).
7.
R.
Neuberger
,
G.
Muller
,
O.
Ambacher
and
M.
Stutzmann
,
phys. Stat. sol. a
185
,
85
89
(
2001
).
8.
L. W.
Jun
,
C. X.
Juan
,
Y. T.
Ting
,
P.
Lei
and
L.X.
Yu
,
Chin. Phys. Lett.
30
,
037301
(
2013
).
9.
I. R.
Gatabi
,
D. W.
Johnson
,
J. H.
Woo
,
J. W.
Anderson
,
M. R.
Coan
,
E. L.
Piner
and
H. R.
Harris
,
IEEE Trans. Electron Devices
60
,
1082
1087
(
2013
).
10.
O.
Ambacher
 et al.,
J. Phys. Condens. Matter
14
,
3399
(
2002
).
11.
P.
Das
and
D.
Biswas
,
AIP Con. Proc.
1591
,
1449
(
2014
).
12.
A.
Hazra
,
S.
Das
,
J.
Kanungo
,
C. K.
Sarkar
and
S.
Basu
,
Sensors and Actuators B
183
,
87
95
(
2013
).
13.
M.
Safari
,
M.
Gholizadeh
and
A.
Salehi
,
Sensors and Actuators B
141
,
1
6
(
2009
).
14.
M. A.
Huque
,
S. A.
Eliza
,
T.
Rahman
,
H. F.
Huq
and
S. K.
Islam
,
Solid State Electronics
53
,
341
348
(
2009
).
This content is only available via PDF.
You do not currently have access to this content.