Temperature is a fundamental physical quantity whose precise measurement is critical in
research and technology. Temperature detection based on the optical response of the …

As the population ages, cancer has become a major health concern. Although surgical
treatment, chemoradiotherapy, and other clinical treatments have become dominant, their …

Chemical compounds with high upconversion (UC) intensity are still needed for temperature-
sensing media based on the fluorescence intensity ratio (FIR) technique of UC materials. In …

In this work, a new type of Yb 3+/Er 3+ co-doped lead-free glass-ceramics (GCs) containing
Ba 2 NaNb 5 O 15 nanocrystals was synthesized via traditional melt-quenching and …

Multifunctional materials are needed for multidimensional stimuli-sensing devices to monitor
equipment in complicated working situations. Energy upconverting (UC) nanophosphors …

Non-contact optical thermometers based on upconversion luminescence (UCL) with high
efficiency are in high demand in the areas of biomedicine, space technology, detectors and …

Recently, the growing demand for temperature detection is pushing forward the flourishing
development of noncontact optical thermometry. Herein, a new red phosphor Sr2InTa1–x …

Rare earth upconversion (UC) luminescent materials have important application prospect in
the field of optical thermometry due to the unique fluorescence properties. To search for new …

Dazzling green emission exhibiting Tb 3+ ions doped lanthanum tungstate (LWO)
nanophosphors were synthesized by a facile hydrothermally assisted solid-state reaction …

Base on up/down-conversion luminescence with thermally coupled energy levels, Er 3+-
activated phosphors have been significantly promising in non-contact optical thermometry …