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 …

Organic materials with long‐lived, color‐tunable phosphorescence are potentially useful for
optical recording, anti‐counterfeiting, and bioimaging. Herein, we develop a series of novel …

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

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 …

Visual wearable devices can rapid intuitively monitor biomarkers in body fluids to indicate
the human health status and provide valuable reference for further medical diagnosis …

Upconversion photoluminescence is a nonlinear effect where multiple lower energy
excitation photons produce higher energy emission photons. This fundamentally interesting …

Chiral self-assembled nanomaterials with biological applications have attracted great
interest. In this study, DNA-driven gold-upconversion nanoparticle (Au-UCNP) pyramids …