Research Article

Mobility Limitations due to Dislocations and Interface Roughness in AlGaN/AlN/GaN Heterostructure

Table 1

Parameters of ZnO employed in calculations. Here is the free electron mass.

ParameterSymbol (units)Value

Mass density (kg/māˆ’3)
Electron effective mass
Dielectric constant (high frequency)
Dielectric constant (low frequency)
LA-phonon velocity (m/s)
LO-phonon energy (meV)
Piezoelectric tensor (C/m2)
(C/m2)
(C/m2)
Deformation constant (eV)

[16], b[20], c[22].