Theranostics is a concept of integrating imaging and therapy into a single platform for use in
the next generation of personalized medicine to meet the challenges in modern health …

Abstract Lanthanides (Ln 3+) are a unique class of optical materials and are extensively
used as building blocks for optoelectronic device architectures due to their outstanding …

A comprehensive review of up-conversion (UP) and down-conversion (DC) or down shifting
of rare earth (RE) doped zinc oxide (ZnO) nanophosphors is presented. Research interest in …

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 …

Internal hydroxyl impurity is known as one of the main detrimental factors affecting the
upconversion (UC) efficiency of upconversion luminescence (UCL) nanomaterials. Different …

Nanocrystalline materials have been recognized as having tremendous potential in the field
of luminescence and thus are on the brink of revolutionizing the display and imaging …

Rare earth ions (Tm3+, Er3+, and Yb3+)-doped cubic Gd2O3 nanocrystals were prepared
by a simple sol− gel method. Raman and FT-IR spectra were measured to evaluate the …

Owing to the alluring possibility of contactless temperature probing with microscopic spatial
resolution, photoluminescence nanothermometry at the nanoscale is rapidly advancing …

Despite considerable effort to improve upconversion (UC) in lanthanide-doped nanocrystals
(NCs), the maximum reported efficiencies remain below 10%. Recently, we reported on low …

It is generally accepted that a lanthanide ions based upconversion material follows an
activator low doping strategy (normally< 3 mol%), because of the restriction of the harmful …