Di-barium magnesium silicate phosphor doped with Eu(2+) and Dy(3+) was prepared using a solid-state reaction technique under a reducing atmosphere. The sample underwent impulsive deformation by impact from a piston for mechanoluminescence (ML) investigations. The temporal ML characteristics of the phosphor were observed, which expressed a single sharp peak with a long decaying period. To invest...

An Sm 3+ and A-site vacancy doped CaTiO 3 phosphors, which demonstrate larger PL intensity than phosphors without vacancies. The formation of V A ordering enables the exchange charge between [Ca/V O n ] [CaO 12 clusters for enhanced properties.

Effectiveness of Vitamin P Compounds in Counteracting Anticoagulant Action of Dicoumarol: Gustav J. Martin and Vinton Swayne ............ 201 Effect of p-Chlorophenoxyacetic Acid on the Vitamin C Content of Snap Beans Following Harvest: John W. Mitchell, Boyce D. Ezell, andM arguerite S. Wilcox ....................................... 202 A Quantitative Hardness Tester for Food Products:Edward R...

The past several years rendered a resurgence of interest in phosphors for lowvoltage flat panel displays utilizing cathodoluminescence (CL). A major selection criterion for these phosphors is CL efficiency. The objective is to maximize the efilciency at low voltages. This work focuses on understanding the materials properties that influence CL efficiency below 1 kV. Existing high-voltage CL eff...

Developing new hosts is one of the significant and intriguing aspects in the field of luminescence materials. Herein, we report a novel LiInTi2O6 host for phosphors in solid state lighting. The sub-solidus phase relationships, thermal stability, crystal structure, as well as compositionand temperature-dependent luminescence were investigated and discussed by means of various analytical techniqu...

Bulk yttrium oxysulfide phosphors were prepared using the polysulfide flux method. The morphology and structure was characterized using transmission electron microscopy and x-ray powdered diffraction. Visible emissions occurring near 530 and 550 nm and 660 670 nm consistent with the H11/2, S3/2 → I15/2 and F9/2 → I15/2 transitions, respectively, were observed under 808, 980, and 1560 nm excitat...

The performance of a persistent phosphor is often determined by comparing luminance decay curves, expressed in cd/m 2 . However, these photometric units do not enable a straightforward, objective comparison between different phosphors in terms of the total number of emitted photons, as these units are dependent on the emission spectrum of the phosphor. This may lead to incorrect conclusions reg...

Trivalent lanthanide (Eu(3+), Tb(3+) and Dy(3+)) ions activated tunable color emitting BaGd2O4 (BG) phosphors were synthesized by a facile Pechini-type sol-gel process. The X-ray diffraction pattern confirmed the orthorhombic phase after annealing at 1300 °C for 5 h. Morphological studies were performed based on the analysis of transmission electron microscopy images, which showed needle type n...