INTRODUCCION A SILVACO, Apuntes de Física

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Process and device

simulation for

optoelectronics

Introduction to structure definition using

SILVACO

M. Sc. Horacio Irán Solís-Cisneros

SILVACO

Coding. Meshing

Coding. Meshing

(xmin,ymin) (xmax,ymin)

(xmin,ymax) (xmax,ymax)

Coding. Region statement

Insert region above using

top

Or defining coordinates with

y.min, y.max

Coding. Detailing

#Doping

#Not mandatory for simulation

doping region= uniform p.type

conc=

doping region= uniform n.type

conc=

#Electrodes

#Mandatory for simulation

electrode name=anode top

electrode name=cathode bottom

Coding. Output

#Output flags

output band.param

#Save files

log outf=curvas.log

save outf=structure.str

save

spectrum=spectrum.sp

c

#Open files

#Extract Bands

extract init

infile=“structure.str"

#Plot curves

tonyplot structure.str

tonyplot spectrum.spc

tonyplot curvas.log

10

• band.param : Specifies that the band parameters (Eg, ni, Nc, Nv, and χ) are included in the standard structure file.
• (^) charge : Specifies that the net charge will be included in the standard structure file.
• (^) con.band : Specifies that the conduction band edge will be included in the standard structure file.
• (^) val.band: Specifies that the valence band edge will be included in the standard structure file.
• (^) polar.charge : Specifies that polarization charge will be included in the structure file.
• (^) photogen : Specifies that the photogeneration rate will be included in the standard structure file.

Coding. Probes

• (^) I-V curves  (^) Vary electrode voltage
• (^) Light devices  (^) Turn on light source
• (^) Spectral response  (^) Vary wavelength of the light source
• (^) Thermal analysis

Variable, outputs, and files monitoring