Figure 12

Excitation powers dependent TRQ of (a) green and (b) red emissions of Y2O3:1%Er3+, 0.5%Ho3+, and (c) red to green intensity ratio of Y2O3:1%Er3+, 0.5%Ho3+.

Excitation powers dependent TRQ of (a) green and (b) red emissions of Y2O3:1%Er3+, 0.5%Ho3+, and (c) red to green intensity ratio of Y2O3:1%Er3+, 0.5%Ho3+.