SiLENSe Version 6.3 has been released. It is a major update of the software including advanced models for material properties and a new solver with improved speed and convergence. Listed below are the main new options in version 6.3 as compared to version 5.15:
- New solver with improved speed and convergence.
- In cubic III-V compounds, three valleys of the conduction band (G, X, and L valleys) are included into simulation. The electron concentration in each valley is calculated independently. So, smooth transition from direct gap to indirect gap alloys is handled automatically with no additional efforts on the user side.
- Concentration of three types of holes (heavy, light, and split-off) is calculated independently.
- Strain effect on the energy band of each type of electrons (G, X, and L valleys) and holes (heavy, light, and split-off) is included into the model.
- Quaternary alloys where atoms in both sublattices can be varied, like InGaAsP and GaInAsSb, are fully supported now. The energy gap is calculated through energy gap of 4 binary compounds and bowing parameters for 4 ternary alloys.
- New model for spectral dependence of the refractive index is implemented. For III-nitride materials, the resulting refractive index is close to the old model.
- Change of the dielectric constant of III-N materials due to anisotropy and piezoeffect is included into the model.
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