PLaSK User Manual

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Material Class

class plask.material.Material

Base class for all materials.

Methods

A([T]) Get monomolecular recombination coefficient A [1/s].
B([T]) Get radiative recombination coefficient B [cm³/s].
C([T]) Get Auger recombination coefficient C [cm⁶/s].
CB([T, e, point]) Get conduction band level CB [eV].
Ce([T]) Get Auger recombination coefficient C [cm⁶/s] for electrons.
Ch([T]) Get Auger recombination coefficient C [cm⁶/s] for holes.
D([T]) Get ambipolar diffusion coefficient D [cm²/s].
Dso([T, e]) Get split-off energy Dso [eV].
EactA([T]) Get acceptor ionisation energy EactA [eV].
EactD([T]) Get donor ionisation energy EactD [eV].
Eg([T, e, point]) Get energy gap Eg [eV].
Me([T, e, point]) Get electron effective mass Me [m₀].
Mh([T, e]) Get hole effective mass Mh [m₀].
Mhh([T, e]) Get heavy hole effective mass Mhh [m₀].
Mlh([T, e]) Get light hole effective mass Mlh [m₀].
Mso([T, e]) Get split-off mass Mso [m₀].
NR(lam[, T, n]) Get complex refractive index tensor Nr [-].
Na() Get acceptor concentration Na [1/m³].
Nd() Get donor concentration Nd [1/m³].
Nf([T]) Get free carrier concentration N [1/m³].
Ni([T]) Get intrinsic carrier concentration Ni [1/m³].
Nr(lam[, T, n]) Get complex refractive index Nr [-].
Psp([T]) Get Spontaneous polarization P [C/m²].
VB([T, e, point, hole]) Get valance band level VB [eV].
absp(lam[, T]) Get absorption coefficient alpha [1/cm].
ac([T]) Get hydrostatic deformation potential for the conduction band ac [eV].
av([T]) Get hydrostatic deformation potential for the valence band av [eV].
b([T]) Get shear deformation potential b [eV].
c11([T]) Get elastic constant c₁₁ [GPa].
c12([T]) Get elastic constant c₁₂ [GPa].
c13([T]) Get elastic constant c₁₃ [GPa].
c33([T]) Get elastic constant c₃₃ [GPa].
c44([T]) Get elastic constant c₄₄ [GPa].
chi([T, e, point]) Get electron affinity Chi [eV].
cond([T]) Get electrical conductivity Sigma [S/m].
cp([T]) Get specific heat at constant pressure [J/(kg K)].
d([T]) Get shear deformation potential d [eV].
dens([T]) Get density [kg/m³].
e13([T]) Get piezoelectric constant e₁₃ [C/m²].
e15([T]) Get piezoelectric constant e₁₅ [C/m²].
e33([T]) Get piezoelectric constant e₃₃ [C/m²].
eps([T]) Get dielectric constant ε [-].
lattC([T, x]) Get lattice constant [A].
mob([T]) Get majority carriers mobility [cm²/(V s)].
mobe([T]) Get electron mobility [cm²/(V s)].
mobh([T]) Get hole mobility [cm²/(V s)].
nr(lam[, T, n]) Get refractive index nr [-].
taue([T]) Get monomolecular electrons lifetime [ns].
tauh([T]) Get monomolecular holes lifetime [ns].
thermk([T, h]) Get thermal conductivity [W/(m K)].
y1() Get Luttinger parameter γ₁ [-].
y2() Get Luttinger parameter γ₂ [-].
y3() Get Luttinger parameter γ₃ [-].

Attributes

alloy
base Base material.
composition Material composition.
condtype Electrical conductivity type.
dopant Dopant material name (part of name after ‘ – ‘, possibly empty).
doping Doping concentration.
kind Material kind.
name Material name (without composition and doping amounts).
name_without_dopant Material name without dopant (without ‘ – ‘ and part of name after it).

Descriptions

Method Details

Material.A(T=300.0)

Get monomolecular recombination coefficient A [1/s].

Parameters:T (float) – Temperature [K].
Material.B(T=300.0)

Get radiative recombination coefficient B [cm³/s].

Parameters:T (float) – Temperature [K].
Material.C(T=300.0)

Get Auger recombination coefficient C [cm⁶/s].

Parameters:T (float) – Temperature [K].
Material.CB(T=300.0, e=0, point='*')

Get conduction band level CB [eV].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
  • point (char) – Point in the Brillouin zone (‘*’ means minimum bandgap).
Material.Ce(T=300.0)

Get Auger recombination coefficient C [cm⁶/s] for electrons.

Parameters:T (float) – Temperature [K].
Material.Ch(T=300.0)

Get Auger recombination coefficient C [cm⁶/s] for holes.

Parameters:T (float) – Temperature [K].
Material.D(T=300.0)

Get ambipolar diffusion coefficient D [cm²/s].

Parameters:T (float) – Temperature [K].
Material.Dso(T=300.0, e=0)

Get split-off energy Dso [eV].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
Material.EactA(T=300.0)

Get acceptor ionisation energy EactA [eV].

Parameters:T (float) – Temperature [K].
Material.EactD(T=300.0)

Get donor ionisation energy EactD [eV].

Parameters:T (float) – Temperature [K].
Material.Eg(T=300.0, e=0, point='*')

Get energy gap Eg [eV].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
  • point (char) – Point in the Brillouin zone (‘*’ means minimum bandgap).
Material.Me(T=300.0, e=0, point='*')

Get electron effective mass Me [m₀].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
  • point (char) – Point in the Brillouin zone (‘*’ means minimum bandgap).
Material.Mh(T=300.0, e=0)

Get hole effective mass Mh [m₀].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
Material.Mhh(T=300.0, e=0)

Get heavy hole effective mass Mhh [m₀].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
Material.Mlh(T=300.0, e=0)

Get light hole effective mass Mlh [m₀].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
Material.Mso(T=300.0, e=0)

Get split-off mass Mso [m₀].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
Material.NR(lam, T=300.0, n=0.0)

Get complex refractive index tensor Nr [-].

Parameters:
  • lam (float) – Wavelength [nm].
  • T (float) – Temperature [K].
  • n (float) – Injected carriers concentration [1/cm³].

Warning

This parameter is used only by solvers that can consider refractive index anisotropy properly. It is stronly advised to also define Nr().

Material.Na()

Get acceptor concentration Na [1/m³].

Args:-

Material.Nd()

Get donor concentration Nd [1/m³].

Args:-

Material.Nf(T=300.0)

Get free carrier concentration N [1/m³].

Parameters:T (float) – Temperature [K].
Material.Ni(T=300.0)

Get intrinsic carrier concentration Ni [1/m³].

Parameters:T (float) – Temperature [K].
Material.Nr(lam, T=300.0, n=0.0)

Get complex refractive index Nr [-].

Parameters:
  • lam (float) – Wavelength [nm].
  • T (float) – Temperature [K].
  • n (float) – Injected carriers concentration [1/cm³].
Material.Psp(T=300.0)

Get Spontaneous polarization P [C/m²].

Parameters:T (float) – Temperature [K].
Material.VB(T=300.0, e=0, point='*', hole='H')

Get valance band level VB [eV].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
  • point (char) – Point in the Brillouin zone (‘*’ means minimum bandgap).
  • hole (char) – Hole type (‘H’ or ‘L’).
Material.absp(lam, T=300.0)

Get absorption coefficient alpha [1/cm].

Parameters:
  • lam (float) – Wavelength [nm].
  • T (float) – Temperature [K].
Material.ac(T=300.0)

Get hydrostatic deformation potential for the conduction band ac [eV].

Parameters:T (float) – Temperature [K].
Material.av(T=300.0)

Get hydrostatic deformation potential for the valence band av [eV].

Parameters:T (float) – Temperature [K].
Material.b(T=300.0)

Get shear deformation potential b [eV].

Parameters:T (float) – Temperature [K].
Material.c11(T=300.0)

Get elastic constant c₁₁ [GPa].

Parameters:T (float) – Temperature [K].
Material.c12(T=300.0)

Get elastic constant c₁₂ [GPa].

Parameters:T (float) – Temperature [K].
Material.c13(T=300.0)

Get elastic constant c₁₃ [GPa].

Parameters:T (float) – Temperature [K].
Material.c33(T=300.0)

Get elastic constant c₃₃ [GPa].

Parameters:T (float) – Temperature [K].
Material.c44(T=300.0)

Get elastic constant c₄₄ [GPa].

Parameters:T (float) – Temperature [K].
Material.chi(T=300.0, e=0, point='*')

Get electron affinity Chi [eV].

Parameters:
  • T (float) – Temperature [K].
  • e (float) – Lateral strain [-].
  • point (char) – Point in the Brillouin zone (‘*’ means minimum bandgap).
Material.cond(T=300.0)

Get electrical conductivity Sigma [S/m].

Parameters:T (float) – Temperature [K].
Material.cp(T=300.0)

Get specific heat at constant pressure [J/(kg K)].

Parameters:T (float) – Temperature [K].
Material.d(T=300.0)

Get shear deformation potential d [eV].

Parameters:T (float) – Temperature [K].
Material.dens(T=300.0)

Get density [kg/m³].

Parameters:T (float) – Temperature [K].
Material.e13(T=300.0)

Get piezoelectric constant e₁₃ [C/m²].

Parameters:T (float) – Temperature [K].
Material.e15(T=300.0)

Get piezoelectric constant e₁₅ [C/m²].

Parameters:T (float) – Temperature [K].
Material.e33(T=300.0)

Get piezoelectric constant e₃₃ [C/m²].

Parameters:T (float) – Temperature [K].
Material.eps(T=300.0)

Get dielectric constant ε [-].

Parameters:T (float) – Temperature [K].
Material.lattC(T=300.0, x='a')

Get lattice constant [A].

Parameters:
  • T (float) – Temperature [K].
  • x (char) – lattice parameter [-].
Material.mob(T=300.0)

Get majority carriers mobility [cm²/(V s)].

Parameters:T (float) – Temperature [K].
Material.mobe(T=300.0)

Get electron mobility [cm²/(V s)].

Parameters:T (float) – Temperature [K].
Material.mobh(T=300.0)

Get hole mobility [cm²/(V s)].

Parameters:T (float) – Temperature [K].
Material.nr(lam, T=300.0, n=0.0)

Get refractive index nr [-].

Parameters:
  • lam (float) – Wavelength [nm].
  • T (float) – Temperature [K].
  • n (float) – Injected carriers concentration [1/cm³].
Material.taue(T=300.0)

Get monomolecular electrons lifetime [ns].

Parameters:T (float) – Temperature [K].
Material.tauh(T=300.0)

Get monomolecular holes lifetime [ns].

Parameters:T (float) – Temperature [K].
Material.thermk(T=300.0, h=inf)

Get thermal conductivity [W/(m K)].

Parameters:
  • T (float) – Temperature [K].
  • h (float) – Layer thickness [µm] [-].
Material.y1()

Get Luttinger parameter γ₁ [-].

Material.y2()

Get Luttinger parameter γ₂ [-].

Material.y3()

Get Luttinger parameter γ₃ [-].

Attribute Details

Material.alloy
Material.base

Base material.

This a base material specified for Python and XPL custom materials.

Material.composition

Material composition.

Material.condtype

Electrical conductivity type.

Material.dopant

Dopant material name (part of name after ‘ – ‘, possibly empty).

Material.doping

Doping concentration.

Material.kind

Material kind.

Material.name

Material name (without composition and doping amounts).

Material.name_without_dopant

Material name without dopant (without ‘ – ‘ and part of name after it).

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