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 …

Lanthanide-based upconversion nanomaterials have recently attracted considerable
attention in both fundamental research and various frontier applications owing to their …

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

Smart control of photon upconversion is a key strategy for lanthanide-based materials used
in biological and photonic applications. However, this has remained a challenge for the …

Lanthanide-doped upconversion nanoparticles (UCNPs) are capable of converting near-
infra-red excitation into visible and ultraviolet emission. Their unique optical properties have …

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

Developing advanced luminescent materials and techniques is of significant importance for
anti‐counterfeiting applications, and remains a huge challenge. In this work, a new and …

Phototheranostics based on upconversion nanoparticles (UCNPs) offer the integration of
imaging diagnostics and phototherapeutics. However, the programmable control of the …

Using multi-color visible lights for independent optogenetic manipulation of multiple
neuronal populations offers the ability for sophisticated brain functions and behavior …

Precise control of energy migration between sensitizer ions and activator ions in lanthanide-
doped upconversion nanoparticles (UCNPs) nowadays has been extensively investigated to …