Figure 4.

PL spectra, schematics, and PL behavior. (a) PL spectrum in logarithmic scale for 1,000°C annealed layer. (b) The schematics of the Pr3+ intra-4f transitions. (c) PL spectra of the films annealed at different annealing temperatures (TA= 800°C to 1,100°C). The excitation wavelength is 285 nm. (d) The behavior of the PL intensity of the 3P03H4 transition at 487 nm with TA.

An et al. Nanoscale Research Letters 2013 8:43   doi:10.1186/1556-276X-8-43
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