Role Of Surface Chemistry In Modifying The Optical Properties Of Silicon Nanostructure
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We combine two model used earlier. We vary the fitting parameters C and α (which depend on surface, geometry, confinement, size, porosity and materials properties). We use surface energy (Es = 0.05eV), binding energy (Eb = 0.07eV), C, and α using these as input we generate Eg and PL intensity spectra. The Eg and PL spectrum are compared with TB and PP data. The position of PL peak is used to find the band gap and compared with the experiment. The main objective is to use the already existing model, combining them and use fitting parameters to calculate optical properties like PL intensity and band gap for varying size. The results show qualitative agreement with the experiment. This is due to the simplicity of the model. However, we found it is interesting to use the fitting parameters C and α to show that our model is in good agreement with the experimental observation.
Subsurface Intelligence & Critical Mineral Exploration
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