problem in simulating NTFET

[arjunbabu123]

I doing a project in tunnel fets using silvaco atlas tool, my problem is, I am using non local band to band tunneling model for simulating NTFET, but by using this model, i couldn't get the any plot regarding this, always noise type signals came, is there any problem with the qtx mesh which i have written?
Here am sending my source code, plz reply me as early as possible......

go atlas
mesh space.mult=8

x.mesh loc=0.00 spac=0.001
x.mesh loc=0.08 spac=0.001
x.mesh loc=0.100 spac=0.0002
x.mesh loc=0.125 spac=0.0002
x.mesh loc=0.135 spac=0.0002
x.mesh loc=0.150 spac=0.0002
x.mesh loc=0.152 spac=0.002
x.mesh loc=0.160 spac=0.002
x.mesh loc=0.250 spac=0.001

y.mesh loc=0.00 spac=0.0001
y.mesh loc=0.009 spac=0.0001
y.mesh loc=0.010 spac=0.0001
y.mesh loc=0.020 spac=0.002
y.mesh loc=0.021 spac=0.0001
y.mesh loc=0.025 spac=0.0002
y.mesh loc=0.030 spac=0.001


#
region   num=1 x.min=0.1 x.max=0.15 y.min=0 y.max=0.009 material=Poly
region   num=2 x.min=0.1 x.max=0.15 y.min=0.009 y.max=0.01 material=SiO2
region   num=3 x.min=0 x.max=0.1 y.min=0.01 y.max=0.02 material=Silicon
region   num=4 x.min=0.1 x.max=0.15 y.min=0.01 y.max=0.02 material=Silicon
region   num=5 x.min=0.15 x.max=0.25 y.min=0.01 y.max=0.02 material=Silicon
region   num=6 x.min=0.1 x.max=0.15 y.min=0.02 y.max=0.021 material=SiO2
region   num=7 x.min=0.1 x.max=0.15 y.min=0.021 y.max=0.03 material=Poly
region   num=8 x.min=0 x.max=0.1 y.min=0 y.max=0.01 material=Air
region   num=9 x.min=0.15 x.max=0.25 y.min=0 y.max=0.01 material=Air
region   num=10 x.min=0 x.max=0.1 y.min=0.02 y.max=0.03 material=Air
region   num=11 x.min=0.15 x.max=0.25 y.min=0.02 y.max=0.03 material=Air

# 
electrode   name=fgate  x.min=0.1 x.max=0.15 y.min=0 y.max=0
electrode   name=bgate  x.min=0.1 x.max=0.15 y.min=0.03 y.max=0.03
electrode   name=source x.min=0 x.max=0 y.min=0.010 y.max=0.020
electrode   name=drain  x.min=0.250 x.max=0.250 y.min=0.010 y.max=0.020

#

doping    gaussian characteristic=0.2 conc=9e19 p.type  region=3 x.min=0 x.max=0.1 y.min=0.01 y.max=0.02
doping    gaussian characteristic=0.2 conc=1e17  n.type  region=4 x.min=0.1 x.max=0.15 y.min=0.01 y.max=0.02
doping    gaussian characteristic=0.2 conc=9e18  n.type  region=5 x.min=0.15 x.max=0.25 y.min=0.01 y.max=0.02

qtx.mesh loc=0.09 spac=0.001
qtx.mesh loc=0.11 spac=0.001

qty.mesh loc=0.009 spac=0.1
qty.mesh loc=0.010 spac=0.01
qty.mesh loc=0.025 spac=0.1

contact     name=fgate workfunction=4.17
contact     name=bgate neutral 



models srh fermi print temperature=300  bbt.forward bbt.nonlocal bbt.nlderivs bgn

method newton 
output con.band val.band eigen=7

solve init
solve vfgate=0.8
solve vfgate=0.9
solve vfgate=1.05

log outf=idvds01.log

solve vdrain=0.0 vstep=0.1 vfinal=1.6 name=drain



save outf=n1tfet.str
tonyplot idvds01.log
tonyplot n1tfet.str

quit