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 …

In vivo imaging in the second near-infrared window (NIR-II, 1000–1700 nm), which enables
us to look deeply into living subjects, is producing marvelous opportunities for biomedical …

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 …

Zero-dimensional (0D) all-inorganic/organic–inorganic metal halides, as emerging
luminescent materials, have attracted unparalleled interest from versatile perspectives due …

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 …

Abstract NaYF4: Ln3+, due to its outstanding upconversion characteristics, has become one
of the most important luminescent nanomaterials in biological imaging, optical information …

Luminescence nanothermometry enables accurate, remote, and all-optically-based thermal
sensing. Notwithstanding its fast development, there are serious obstacles hindering …

Metal halide nanocrystals (NCs) with high photoluminescence quantum yield (PLQY) are
desirable for lighting, display, and X‐ray detection. Herein, the novel lanthanide‐based …

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