X-rays are widely adopted in cancer radiotherapy and clinical diagnosis devices for
photodynamic therapy (PDT) and medical radiography. The sole utilization of X-ray …

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

Anti‐counterfeiting techniques have become a global topic since they is correlated to the
information and data safety, in which multimodal luminescence is one of the most desirable …

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

All-inorganic cesium lead halide perovskite (CsPbX3, X= Cl, Br, and I) quantum dots (QDs),
possessing high photoluminescence quantum yields and tunable color output, have recently …

All-inorganic perovskite quantum dots (QDs) have emerged as potentially promising
materials for lighting and displays, but their poor thermal stability restricts their practical …

Upconversion emissions from lanthanide-doped nanocrystals have sparked extensive
research interests in nanophotonics, biomedicine, photovoltaics, photocatalysis, etc …

Herein, a strategy is reported for the fabrication of NiCo2O4‐based mesoporous nanosheets
(PNSs) with tunable cobalt valence states and oxygen vacancies. The optimized NiCo2 …

Na3ScF6: 20% Yb3+, 2% Er3+ samples were synthesized with different reaction times and
reaction temperatures using the solvothermal method. We carried out a series of tests on …

A new class of lanthanide‐doped upconversion nanoparticles are presented that are without
Yb3+ or Nd3+ sensitizers in the host lattice. In erbium‐enriched core–shell NaErF4: Tm (0.5 …