Output-current-data
The output of current, Fermi levels, mobilities and I-V characteristics is controlled
by this keyword.
!-------------------------------------------------------------------!
$output-current-data
optional !
destination-directory
character
required !
current
character
optional !
recombination
character
optional !
fermi-levels
character
optional !
mobility-out
character
optional !
IV-curve-out
character
optional !
$end_output-current-data
optional !
!-------------------------------------------------------------------!
Syntax:
destination-directory = my-directory/
e.g. = current/
Name of directory to which the files should be written. Must exist
and directory name has to include the slash (\
for DOS and / for UNIX)
current = yes /
no
Flag whether to put out current.
recombination = yes /
no
Flag whether to put out the generation and recombination rates (net
recombination, SRH = Shockley-Read-Hall, Auger, direct = radiative, total).
The units are [1018 cm-3s-1].
fermi-levels = yes /
no
Flag whether to put out the Fermi levels
mobility-out = yes /
no
Flag whether to put out the mobility and drift velocity
IV-curve-out = yes / no
Flag whether to put out the I-V characteristics (i.e. current as a function of
applied voltage).
Output
Filenames and structure
Current:
1D output
filename:
current1D_ind000.dat |
| |
_ind000 |
number of voltage step corresponding to
this output file (only if voltage sweep is turned on) |
structure:
distance: |
el: |
hl: |
total: |
0.000000E+00 |
0.000000E+00 |
0.000000E+00 |
0.000000E+00 |
| Position in space [nm] |
Electron current [A/m2] |
Hole current [A/m2] |
Total current Itot=Iel+Ihl [A/m2] |
2D output
current_el2D_x_ind001.fld / *.coord
/ *.dat
...
- el/hl is for electron/hole
current output
- x/y is for x- or
y-component of two-dimensional current vector in units of [A/cm2]
- ind001 is for 1st voltage sweep index
3D output
current_hl3D_y_ind004.fld / *.coord
/ *.dat
...
- el/hl is for electron/hole
current output
- x/y/z
is for x-, y- or z-component of three-dimensional current vector in
units of [A/cm2]
- ind004 is for 4th voltage sweep index
Fermi levels:
quasi-Fermi levels of electrons and holes [eV]
filename:
fermi1D_el_ind000.dat |
| |
_el
_hl |
|
indicates if Fermi level for
electrons (_el) or holes (_hl) is contained |
| |
|
_ind000 |
number of voltage step corresponding to
this output file (only if voltage sweep is turned on) |
structure:
distance: |
fermi_el: |
0.000000E+00 |
0.000000E+00 |
| Position in space [nm] |
Fermi level [eV] |
Drift velocity:
drift velocity of electrons and holes [cm/s]
filename:
drift_velocity_ind004.dat |
| |
_ind004 |
number of voltage step corresponding to
this output file (only if voltage sweep is turned on) |
structure:
distance: |
vd_n: |
vd_p: |
0.000000E+00 |
0.000000E+00 |
0.000000E+00 |
| Position in space [nm] |
Electron drift velocity [cm/s] |
Hole drift velocity [cm/s] |
Mobility:
mobility of electrons and holes in units of [cm2/Vs]
1D output
filename:
mobility1D_ind001.dat |
| |
_ind000 |
number of voltage step corresponding to
this output file (only if voltage sweep is turned on) |
structure:
distance: |
mu_n: |
mu_p: |
0.000000E+00 |
0.000000E+00 |
0.000000E+00 |
| Position in space [nm] |
Electron mobility [cm²/Vs] |
Hole mobility [cm²/Vs] |
2D output
mobility_el2D_x_ind001.fld / *.coord
/ *.dat
...
- el/hl is for electron/hole
mobility output
- x/y is for x- or
y-component of two-dimensional mobility in units of [cm2/Vs]
- ind001 is for 1st voltage sweep index
3D output
mobility_hl3D_y_ind004.fld / *.coord
/ *.dat
...
- el/hl is for electron/hole
mobility output
- x/y/z
is for x-, y- or z-component of three-dimensional mobility in units
of [cm2/Vs]
- ind004 is for 4th voltage sweep index
Recombination:
filename:
recombination1D_ind000.dat |
| |
_ind000 |
number of voltage step corresponding to
this output file (only if voltage sweep is turned on) |
structure:
position[nm] |
rec_el[10^18/(cm^3s)] |
rec_hl[10^18/(cm^3s)] |
0.000000E+00 |
0.000000E+00 |
0.000000E+00 |
| Position in real space [nm] |
Electron recombination rate
[10^18/(cm^3s)] |
Hole recombination rate [10^18/(cm^3s)] |
Remark
The recombination rate is divided in two parts, one for electrons and one for
holes because of the following reason:
If one regards generation/recombination
processes together with quantum mechanical wavefunctions it is possible that the
electron is located elsewhere than the hole and therefore the spatial
distribution of the recombination/generation rates for electrons and holes is
different (still under examination!).
Depending on which recombination models are used, the recombination output is
the sum of direct
(radiative), Auger and
Shockley-Read-Hall
recombination, and generation, so it is a net
recombination.
(If it is negative, generation dominates.)
A separate file will be printed out that contains the generations rate only:
generation1D_ind000.dat
The recombination file contains the following columns:
position[nm] rec_el[10^18/(cm^3s)] rec_hl[10^18/(cm^3s)]
SRH[10^18/(cm^3s)] Auger[10^18/(cm^3s)] direct[10^18/(cm^3s)]
total[10^18/(cm^3s)]
net (= total - generation) net (= total - generation)
I-V characteristics:
The current-voltage characteristics (I-V characteristics) are contained in this file.
Filename:
IV_characteristics1D.dat (1D simulation)
IV_characteristics2D.dat
IV_characteristics3D.dat |
Structure:
| VOLT_CL001 |
VOLT_CL002 |
CUR_EL001 |
CUR_EL002 |
CUR_HL001 |
CUR_HL002 |
CUR_TOT001 |
CUR_TOT002 |
Voltage
cluster 1
[V] |
Voltage
cluster 2
[V] |
electron current
cluster 1
[A/m2] |
electron current
cluster 2
[A/m2] |
hole current
cluster 1
[A/m2] |
hole current
cluster 2
[A/m2] |
Total current
cluster 1
[A/m2] |
Total current
cluster 2
[A/m2] |
Units:
- 1D: [A/m²]
- 2D: [A/m]
- 3D: [A] | 
