Cooperative luminescence (CL) occurs in spectral regions in which single ions do not have
energy levels. It was first observed more than 40 years ago, and all results reported so far …

Tm3+/Er3+/Yb3+ triply doped Y2O3 transparent ceramics were fabricated by solid state
reaction and characterized from the point of view of white light upconversion luminescence …

The impact of selective rare-earth (RE) additions in ZrO2-based ceramics on the resultant
crystal structure, mechanical, morphological, optical, magnetic, and imaging contrast …

Strong green and red visible emissions were obtained from ZrO 2: Yb 3+–Er 3+ nanocrystals
synthesized by sol-gel method and annealed at 1000 C for 5 h. The average crystallite size …

Low phonon energy Tm3+/Ho3+/Yb3+ triply doped bismuth tellurite glasses exhibiting
multicolor upconversion fluorescences have been fabricated and characterized. The …

Ultraviolet-visible to near-infrared quantum cutting (QC) materials are a promising tool to
enhance the efficiency of conventional crystalline silicon solar cells. The spectroscopic …

Yttria stabilized zirconia single crystal fibers doped with europium ions were developed
envisaging optical applications. The laser floating zone technique was used in order to grow …

We report experimental observations of impurity Tm 3+ ions upconversion luminescence in
fluoroaluminate glasses doped with Yb 3+ ions in concentration of 10 19–10 21 ions/cm 3. It …

Near vacuum ultraviolet (UV) upconversion (UC) emissions with a spectral resolution of 1
nm, from the^ 6G_J,^ 6D_J,^ 6I_J,^ 6P_J levels of Gd^ 3+ and the^ 2L_17/2,^ 4D_7/2,^ 2H …

Lanthanide-doped metal-organic frameworks (Y/Yb/Er-MOF) were synthesized by a low-cost
solvothermal method. The obtained Y/Yb/Er-MOF shows the cooperative upconversion …