Bioimaging enables the spatiotemporal visualization of biological processes at various
scales empowered by a range of different imaging modalities and contrast agents …

Advancing the upconversion materials field relies on accurate and contrastable
photoluminescence efficiency measurements, which are characterised by the absolute …

The concept of optical temperature sensing, based mainly on the band intensity ratio, line
shift, or luminescence lifetimes, is utilized for noninvasive and rapid detection of local …

Abstract Luminescent YP 0.5 V 0.5 O 4 (YPVO) nanoparticle tri-doped with 2% Er 3+, 15%
Yb 3+ and 1% Ho 3+ were successfully synthesized via a sol gel reaction for their …

Near infrared (NIR) to visible upconversion has been the focus in the optical research
community considering bioimaging applications mainly because NIR excitation has a deep …

Up-converting nanoparticles can be a demand for requirements in many areas, including
bioimaging and conversion of energy, but also in the battle against counterfeiting. The …

The right choice of synthesis route for upconverting nanoparticles (UCNPs) is crucial for
obtaining a well-defined product with a specific application capability. Thus we decided to …

A fluorolytic sol–gel method was used for the fast and simple synthesis of small cubic-phase
SrF2: Yb3+, Er3+ upconversion (UC) nanocrystals (UCNC) of different composition at room …

In recent years, nanotechnology has found widespread applications in environmental
monitoring, medical applications, plant fertilisers, cosmetics and others. Therefore, it is …

The major challenge in optical ceramic technology is the quality of the starting precursor
powder for pressing, which is a key element in the optical ceramic industry. One express and …