Impurity do** is a promising method to impart new properties to various materials. Due to
their unique optical, magnetic, and electrical properties, rare-earth ions have been …

The attractive features of lanthanide-doped upconversion luminescence (UCL), such as high
photostability, nonphotobleaching or photoblinking, and large anti-Stokes shift, have shown …

Upconversion luminescence is characterized by the conversion of near-infrared excitation
into ultraviolet and visible emissions through a special class of doped optical materials …

Upconversion is a nonlinear optical phenomenon that involves the emission of high‐energy
photons by sequential absorption of two or more low‐energy excitation photons. Due to their …

The spread of COVID-19 has caused huge economic losses and irreversible social impact.
Therefore, to successfully prevent the spread of the virus and solve public health problems, it …

In recent years, increasing efforts have been devoted to widening the light response range
of graphitic carbon nitride (g-C3N4) for photocatalytic environmental remediation and fuel …

Optogenetics is an optical technique that exploits visible light for selective neuromodulation
with spatio‐temporal precision. Despite enormous effort, the effective stimulation of targeted …

In the past few decades, although tremendous advancements have been witnessed by the
progress in the fabrication of various kinds of nanomaterials, only those types of …

Upconversion nanoparticles (UCNPs) show attractive anti-Stokes characteristics converting
lower-energy photons into higher-energy emissions. The excellent biocompatibility and …

Lanthanide-doped upconversion nanoparticles (UCNPs) have been gaining increasing
research interests in chemistry, materials, optics, and interdisciplines due to their excellent …