What is it about?
Extending the Tau-Lorentz model, which is widely applied for semiconductors with indirect bandgaps, with log-normal distributed band gap energies.
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Why is it important?
It consideres the statistical nature of the bandgap energies, which has not been explicitly included in the other models for optical permittivities.
Perspectives
The idea behind this model is to get an inside-view of the statistics of bandgap distribution in semiconductor grains, which should be correlated with other technical methods and can help build a non-destructive characterization of grain statistics.
Chencheng Xu
Read the Original
This page is a summary of: Extended Tauc–Lorentz model (XTL) with log-normal distributed bandgap energies for optical permittivity in polycrystalline semiconductors, AIP Advances, November 2022, American Institute of Physics,
DOI: 10.1063/5.0119256.
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