Photon upconversion in lanthanide-based materials has recently shown compelling
advantages in a wide range of fields due to their exceptional anti-Stokes luminescence …

Upconversion nanoparticles have recently received increasing attention due to their
outstanding performance in temperature sensing at the nanoscale. Although much effort has …

Due to the unique fluorescence characteristics, superstructures from self-assembly of
semiconductor nanoparticles have become essential components of material and chemical …

Conventional photocatalysts must be activated by ultraviolet or visible light to meet the
energy requirement of populating an initial excited state, while infrared light has a high …

Rare-earth-doped up-converters with Yb3+ as a sensitizer show a high internal conversion
efficiency under the excitation at wavelength λ= 980 nm. For the solar cell applications of up …

Coating upconversion nanocrystals with an inert shell for removing surface defects is
confirmed to be an efficient way for remarkably enhancing upconversion luminescence …

Lanthanide-doped upconversion nanoparticles (UCNPs) were found promising in
photovoltaic devices and nanoscale sensing due to their excellent optical properties …

Fluorescent imaging in the second near-infrared window (NIR-II; 1000–1700 nm) has
recently received tremendous attention due to its excellent tissue probing depths and high …

The engineering of core@ multi-shell nanoparticles containing heterogeneous crystalline
phases in different layers constitutes an important strategy for obtaining optical probes. The …

Fluorescent microspheres exhibit unique emissions at the microscale and have been widely
used as probes for immunoassays and advanced micro-sensors. Herein, we report the …