Upconversion (UC) refers to nonlinear optical processes in which the sequential absorption
of two or more photons leads to the emission of light at shorter wavelength than the …

The demand for more efficient and complete sorting techniques for plastic waste is growing,
and one possible solution isbased on fluorescent labeling. Novel fluorescent labels based …

Yb3+/Er3+ codoped Ba5Gd8Zn4O21 up-conversion (UC) phosphors with tunable emission
were synthesized using a facile sol–gel method. UC spectra are composed of green …

Yb3+/Tm3+ co-doped Ba5Gd8Zn4O21 upconversion (UC) phosphors with thermometric and
optical heating properties were successfully prepared by a sol–gel process, and crystal …

Investigation of the unclear influential factors to thermal sensing capability is the only way to
achieve highly sensitive thermometry, which is greatly needed to meet the growing demand …

An analysis of the intense blue upconversion emission at 476 and 488nm in Tm3+/Yb3+
codoped Y2O3 under excitation power density of 86.7 W/cm2 available from a diode laser …

Abstract Cubic phase Tm 3+/Yb 3+: Y 2 O 3 and Tm 3+/Yb 3+/Gd 3+: Y 2 O 3 phosphors
were prepared by low temperature combustion technique for upconversion emission in UV …

We demonstrated the synthesis of LaPO4: Er: Yb-doped nanoparticles/nanorods and
LaPO4: Er@ Yb core− shell nanoparticles/nanorods by a solution-based technique. The …

Abstract Mit Upconversion (UC, Aufwärtskonversion) werden nichtlineare optische Prozesse
beschrieben, bei denen die aufeinander folgende Absorption von zwei oder mehr Photonen …

Here, the facile synthesis of fluorescent ZrO2: Eu3+ nanoparticles with luminescence
quantum yield of up to 8.7% that can be easily dispersed in organic solvents and utilized for …