Figure 6From: Color-tunable up-conversion emission in Y2O3:Yb3+, Er3+ nanoparticles prepared by polymer complex solution methodPower dependence of UC emissions. Dependence of the green (green line and symbols) and red (red line and symbols) UC emissions on excitation power for (a) Y1.97Yb0.02Er0.01O3, (b) Y1.94Yb0.05Er0.01O3, and (c) Y1.89Yb0.10Er0.01O3 NPs.Back to article page