Figure 2From: Color-tunable up-conversion emission in Y2O3:Yb3+, Er3+ nanoparticles prepared by polymer complex solution methodTEM data from Y 1.97 Yb 0.02 Er 0.01 O 3 sample. (a) Bright-field image showing nanoparticle cluster. (b) [110] lattice image of a single particle. The 004 planes are indicated. Inset: FFT of image (indicated spot corresponds to 004 periodicity). (c) Selected-area diffraction pattern of nanoparticle cluster. Prominent planes are indexed.Back to article page