Impurity doping 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 …

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

Following astonishing growth in the last decade, the field of luminescence thermometry has
reached the stage of becoming a mature technology. To achieve that goal, further …

While photoluminescence printing is a widely applied anticounterfeiting technique, there are
still challenges in developing new generation anticounterfeiting materials with high security …

Optical nanomaterials have been widely used in anticounterfeiting applications. There have
been significant developments powered by recent advances in material science, printing …

Luminescence lifetime imaging has exhibited significant advantages over traditional optical
imaging in terms of precise quantification detection because of the intrinsic stability of …

Lanthanide-doped upconversion nanoparticles (UCNPs) possess the remarkable ability to
convert multiple near-infrared (NIR) photons into higher energy ultraviolet–visible (UV–vis) …

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 …

Lanthanide-doped upconversion nanoparticles (UCNPs) have received substantial attention
in diversities of frontier applications because of their excellent and flexible photon …

Encoded nano-structures/particles have been used for barcoding and are in great demand
for the simultaneous analysis of multiple targets. Due to their nanoscale dimension (s), nano …