Room-temperature PL spectra of Si NCs in the SRO and SROEr films. The Si excesses in SRO and SROEr films are (a) 11%, (b) 36%, (c) 58%, and (d) 88%, respectively. The Si NCs with separated microstructures and smaller sizes might be preferable to their luminescence performance.
Jin et al. Nanoscale Research Letters 2013 8:34 doi:10.1186/1556-276X-8-34