Effects of slight structural distortion on the luminescence performance in (Ca Eu )WO luminescent materials.

(Ca Eu )WO (x = 0-21 mol%) phosphors were prepared using the classical solid-state reaction method. The influence of Eu ion doping on lattice structure was observed using powder X-ray diffraction and Fourier transform infrared spectroscopy. Furthermore, under this influence, the luminescence properties of all samples were analyzed.

Tuning nanocavities of Au@CuO yolk-shell nanoparticles for highly selective electroreduction of CO to ethanol at low potential.

The electrosynthesis of high-value ethanol from carbon dioxide and carbon monoxide addresses the need for the large-scale storage of renewable electricity and reduction of carbon emissions. However, the electrosynthesis of ethanol by the CO reduction reaction (CORR) has suffered from low selectivity and energy efficiency. Here, we report a catalyst composed of Au nanoparticles in CuO nanocavities (Au@CuO) that is very active for CO reduction to ethanol through the confinement of the CO intermediate.

Molten salt synthesis and luminescence of Dy -doped Y Al O phosphors.

Dy -doped Y Al O phosphors were prepared at a relatively low temperature using molten salt synthesis. The phase of the prepared Dy -doped Y Al O phosphors was confirmed using X-ray powder diffraction. Results indicated that Dy doping did not change the Y Al O phase.

Luminescence of TbAlO phosphors co-doped with Ce/Gd for white light-emitting diodes.

Tb CeGdAlO phosphors were synthesized through solid-state reactions. The influence of Gd on the luminescence was investigated. Under the excitation at 460 nm, TbCeAlO shows the characteristic emission band of Ce with a peak wavelength at about 554 nm.

[Research on the spectral properties of the Rhodamine 101 dye].

The absorption, fluorescence and time-resolved fluorescence spectra of Rhodamine 101 dye in both methanol and acidic methanol solutions were measured. The authors achieved the characteristic information of the absorption and fluorescence spectra, and obtained the S1 lifetimes. The authors assigned vibrational modes of the Rhodanmine 101 dye molecule through spontaneous Raman spectrum, infrared spectrum, and density function theory calculation.

[Observations of the non-surgical treatment response on diabetic patients with chronic periodontitis].

Purpose: To observe the non-surgical treatment response on diabetic patients with chronic periodontitis.

Methods: Moderate to advanced chronic periodontitis was studied in 36 Diabetes Mellitus (DM) patients classified as 20 cases with high and fluctuating blood glucose level (DM-H) and 16 cases with relatively low and stable blood glucose level (DM-L). 28 non-DM patients with chronic periodontitis served as control (Non-DM).