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The photoluminescence spectra of amorphous silicon rich silicon nitride films with various compositions were investigated. Two main luminescence peaks were identified for all samples and blueshift of photoluminescence were observed after annealing treatment. With the help of X-ray photoelectron spectroscopy and Fourier transform infrared measurement, the chemical composition and bonding environment...
The photoluminescence from the radiative recombination defects in Si-rich SiNx with various Si concentrations was investigated. Due to the Si and N dangling bonds, ultra-wide spectra with full width at half maximum of ∼250nm were achieved in visible region.
In this paper, we report experimental results to demonstrate the enhancement of the photoluminescence from nanostructural porous silicon due to Purcell effect of the metal surface plasmons.
Using double layer Au film surface-plasmon waveguides, Purcell factor can be improved dramatically. Under the same background loss, more significant enhancement in internal quantum efficiency of silicon nanocrystals can be obtained compared with the monolayer structure.
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