Unravelling the effect of crystal lattice compression on the supercapacitive performance of hydrothermally grown nanostructured hollandite α-MnO induced by incremental growth time.

Manganese oxide (α-MnO) nanoparticles are highly recognised for their use in supercapacitor applications. This study demonstrates the successful synthesis of flower-like and nanorods hollandite α-MnO by a simple one-pot hydrothermal technique at various reaction times. The synthesised nanoparticles were characterised by various physicochemical and electrochemical characterisation techniques.

Influence of annealing temperature on persistent luminescence in BaAlO:Eu/Eu nanocrystals and its application for latent fingerprint detection.

The luminescent properties of europium (Eu) doped BaAlO phosphors were strongly influenced by post-annealing temperatures for blue-green persistent luminescence and latent fingerprints (LFPs). The X-ray powder diffraction patterns of the BaAlO: 1 mol% Eu nanophosphor, annealed between 1000 and 1300 °C, indicated a hexagonal ferroelectric phase. The X-ray photoelectron spectroscopy (XPS) revealed that the Ba atoms occupied two different sites in the BaAlO.

The role of thickness on the structural and luminescence properties of YO:Ho, Yb upconversion films.

The structural, surface, and upconversion (UC) luminescence properties of YO:Ho,Yb films grown by pulsed laser deposition, for different numbers of laser pulses, were studied. The crystallinity, surface, and UC luminescence properties of the thin films were found to be highly dependent on the number of laser pulses. The X-ray powder diffraction analysis revealed that YO:Ho,Yb films were formed in a cubic structure phase with an Ia space group.

Nanocomposites with ZrO@S-Doped g-CN as an Enhanced Binder-Free Sensor: Synthesis and Characterization.

This study describes new electrocatalyst materials that can detect and reduce environmental pollutants. The synthesis and characterization of semiconductor nanocomposites (NCs) made from active ZrO@S-doped g-CN is presented. Electrochemical impedance spectroscopy (EIS) and Mott-Schottky (M-S) measurements were used to examine electron transfer characteristics of the synthesized samples.

Role of Li ions on the surface morphology and thermoluminescence properties of Y O :Tm nanophosphor.

Y O :Tm and Li co-doped Y O :Tm nanopowders were synthesized using the solution combustion method for possible application in ultraviolet (UV) light dosimetry. X-ray diffraction revealed the crystallite sizes to be in the range 21-44 nm and 30-121 nm using the Scherrer equation and the W-H plot relationship, respectively. Field emission scanning electron microscopy confirmed that, after co-doping with 4 mol% concentration of Li , the particles were spherical in nature with an average size of ~30 nm.