Optical thermometry based on upconverted luminescence in transparent glass ceramics containing NaYF 4 :Yb 3+ /Er 3+ nanocrystals

Eu3+ and Er3+ doped NaLu1Yb F4 (x= 0 ∼ 1) solid-solution self-crystallization nano-glass-ceramics: Microstructure and optical spectroscopy

“…So far, many fluoride NCs, such as REF 3 (RE = La -Lu), MF 2 (M = Pb, Ca, Sr, Ba), NaREF 4 (RE = Y, Gd, Lu), LiYbF 4 and KYb 2 F 7 , embedded GCs have been reported [11][12][13][14][15][16][17][18][19][20][21][22][23]. The incorporation of activators into fluoride lattice is generally based on the Ln 3+ diffusion process in the previously reported GC systems.…”

“…Nowadays there is a widespread study on the trivalent lanthanide (Ln 3+ ) ions doped upconversion (UC) luminescence materials owing to their potential application in the solid-state laser, three-dimensional display, bio-label, sensor, catalysis, and solar cell, etc [1][2][3][4][5][6]. Therefore, searching highly efficient UC materials is highly valuable.…”

Upconversion luminescence in erbium doped transparent oxyfluoride glass ceramics containing hexagonal NaYF4 nanocrystals

“…Particularly, the structure and morphology of Er 3+ [26], [27] and Nd 3+ [28] doped ␣-NaYF 4 nanostructured glass ceramic has been reported. Intense UCL has been reported in analogous OxFGC system doped with Yb 3+ , Er 3+ [29], [30], Yb 3+ , Ho 3+ [31] but no results on the preparation of a transparent OxFGC containing hexagonal NaYF 4 by controlled crystallization of melt-quenched glass have been published [32].…”

Preparation and optical properties of Eu 3+ doped and Er 3+ /Yb 3+ codoped oxyfluoride glass ceramics containing Ba 1−x Lu x F 2+x nanocrystals

“…Rare earth (RE) doped optical materials for upconversion luminescence have attracted a great deal of attention in recent years due to their wide applications in temperature sensors, three-dimensional displays, photovoltaics and biological image [1][2][3][4]. It is well known that both the energy level scheme of RE ions and the corresponding local environment play a great role on the efficiency of upconversion luminescence.…”