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 …

Luminescent materials, also called phosphors, are defined as solids that can absorb and
convert certain types of energy into radiation of light.(1) Among all kinds of phosphors, rare …

Currently, one of the major factors limiting the efficiency of solar cells is the spectral
mismatch between the energy distribution of photons in the incident solar spectrum and the …

The purpose of the present work is to demonstrate that the hexagonal Yb/Er: NaGdF4 core
size has a great impact on the completeness of the NaYF4 shell covering the core. With the …

Despite the fast progress in lanthanide-doped upconversion nanocrystals (UCNCs), the
preparation of ultra-small, monodisperse and uniform UCNCs with intense high-order …

Optical thermometers usually make use of the fluorescence intensity ratio of two thermally
coupled energy levels, with the relative sensitivity constrained by the limited energy gap …

Upon introducing Ca2+ dopants into the grain lattices by substituting Gd3+ ions, irregular
Yb/Er: NaGdF4 nanocrystals prepared through a simple solvothermal route convert into …

Folate receptors (FRs) are overexpressed on a variety of human cancer cells and tissues,
including cancers of the breast, ovaries, endometrium, and brain. This over-expression of …

Ultrasmall upconversion (UC) nanoparticles with intense luminescence are quite desirable
for in vitro and in vivo bioimaging. Herein, we report the successful synthesis of sub-10 nm …

A series of NaLuF4-based hexagonal phase upconversion nanocrystals (UCNs) were
synthesized by a facile solvothermal method and the properties of the UCNs were …