Figure 6From: Monodisperse upconversion GdF3:Yb, Er rhombi by microwave-assisted synthesis TEMs of NaGdF4:Yb, Ho nanocrystals. (A) Five times standard concentration; (B) 25% standard concentration; (C) XRD pattern of NaGdF4:Yb, Ho nanocrystals; (D) Upconversion spectrum of NaGdF4:Yb, Ho nanocrystals under excitation of 980 nm.Back to article page