Room-temperature PL spectra and decay curves of Er3+ion. (a) Room-temperature PL spectra of Er3+ ion in the SROEr films. (b) Decay curves of PL signal recorded at 1,540 nm for Er3+ in SROEr films with Si excesses of 11% and 88%. Optimized Si NCs with separated microstructures are requested to obtain efficient Er3+ luminescence.
Jin et al. Nanoscale Research Letters 2013 8:34 doi:10.1186/1556-276X-8-34