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Room-temperature photoluminescence spectra of thin films of various compositions, along with an control sample. The Er dose was ( at ).
Room-temperature PL peak intensity of films as a function of oxygen content , along with an control sample. The dotted line is a guide to the eye. The inset presents the PLE spectrum of in collected under broadband excitation.
Typical FTIR spectra of: (a) -like , (b) , and (c) -like samples. Inset shows the Gaussian deconvolution of the IR band from 600 to .
Typical XPS Si spectra of (a) -like , (b) , and (c) -like samples.
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