All forms of energy follow the law of conservation of energy, by which they can be neither
created nor destroyed. Light-to-heat conversion as a traditional yet constantly evolving …

Quantum sensors are finding their way from laboratories to the real world, as witnessed by
the increasing number of start-ups in this field. The atomic length scale of quantum sensors …

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 …

Luminescence (nano) thermometry is a remote sensing technique that relies on the
temperature dependency of the luminescence features (eg, bandshape, peak energy or …

Magnetic hyperthermia (MHT) is a therapeutic modality for the treatment of solid tumors that
has now accumulated more than 30 years of experience. In the ongoing MHT clinical trials …

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

Transition metal (TM) ion activated phosphors are increasingly being used as probes for
luminescence thermometry. Their luminescence is characterized by strong absorption and …

Photoluminescence lifetime imaging of upconverting nanoparticles is increasingly featured
in recent progress in optical thermometry. Despite remarkable advances in …

Abstract LaNbO 4: 1.0% Bi 3+/x% Ln 3+(Ln= Eu, Tb, Dy, Sm) phosphors, which can emit
both emissions of Bi 3+ and Ln 3+ ions, were prepared by a solid-state reaction technology …

Thermal activation of upconversion luminescence in nanocrystals opens up new
opportunities in biotechnology and nanophotonics. However, it remains a daunting …