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 …

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 …

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

External manipulation of emission colour is of significance for scientific research and
applications, however, the general stimulus-responsive colour modulation method requires …

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

In this Review article, we systematically summarize the design and applications of various
kinds of long-lived emissive probes for bioimaging and biosensing via time-resolved …

InP quantum dots (QDs) are typical III–V group semiconductor nanocrystals that feature
large excitonic Bohr radius and high carrier mobility. The merits of InP QDs include large …

Semiconductor plasmonics has become a frontier for light manipulation beyond the
diffraction limit, offering a broader spectral range and higher flexibility of plasmon …

In vivo imaging technologies have emerged as a powerful tool for both fundamental
research and clinical practice. In particular, luminescence imaging in the tissue-transparent …