Enhance upconversion photoluminescence intensity by doping Li+ in Ho3+ and Yb3+ codoped Y2O3 nanocrystals

Glycine-assisted hydrothermal synthesis of single-crystalline LaF3:Eu3+ hexagonal nanoplates

“…Thus, further explorations of well-controlled shapes and novel structures of inorganic rare earth luminescent materials have become important research subjects faced by chemists who focus on the synthesis of inorganic compounds. In the past decades, great efforts have been devoted to the designing of inorganic rare earth luminescent nanomaterials with well-defined sizes, shapes, and crystallinity [3][4][5][6][7][8][9][10][11][12].…”

Upconversion luminescence enhancement and temperature sensing behavior of F− co-doped Ba3Lu4O9:Er3+/Yb3+ phosphors

“…Just as discussed above, the incorporation of F À ions into the host matrix to occupy O 2À site or enter interstitial sites would modify the local crystal eld environment of Er 3+ ions, lower site symmetry of the lanthanide activator ions and break the 4f-4f forbidden transitions to enhance the UC luminescence. 16,26,[39][40][41] Secondly, the ux effect of BaF 2 could not be neglected and F À doping may also improve crystallinity and particle morphology of samples as discussed in the Fig. 4, which further enhances the UC luminescence.…”

Synthesis and upconversion luminescence of monodispersed, submicron-sized Er3+:Y2O3 spherical phosphors

“…In particular, Er 3+ ion has been widely doped because Er 3+ ion has energy levels that closely match the wavelength of commercial available InGaAs laser diode (LD) [7,8]. Among the inorganic host for upconversion luminescent materials, Y 2 O 3 is a promising candidate owing to its physical and chemical stability and its relatively low phonon energy [9][10][11][12]. Therefore, Y 2 O 3 materials doped with Er 3+ ions or Er 3+ sensitized with Yb 3+ ions have particularly attracted considerable interests in terms of high chemical durability and thermal stability.…”