Radiative decays of ground state light vector mesons with non-relativistic and relativistic phase spaces and other decay properties

369-373The comprehensive study of some of the decay properties of ground state light vector mesons within the framework of non relativistic potential model has been made in the present paper. Some of the decay properties and radiative decay widths of light vector mesons are calculated using spectroscopic parameters. The E1 and M1 transition widths have been studied both in case of non-relativistic and relativistic phase spaces. A good agreement between the calculated and experimental data is obtained in case of relativistic phase space calculations

Impact of Ag on the Limit of Detection towards NH3-Sensing in Spray-Coated WO3 Thin-Films

Ag-doped WO3 (Ag–WO3) films were deposited on a soda-lime glass substrate via a facile spray pyrolysis technique. The surface roughness of the films varied between 0.6 nm and 4.3 nm, as verified by the Atomic Force Microscopy (AFM) studies. Ammonia (NH3)-sensing measurements of the films were performed for various concentrations at an optimum sensor working temperature of 200 °C. Enrichment of oxygen vacancies confirmed by X-ray Photoelectron Spectroscopy (XPS) in 1% Ag–WO3 enhanced the sensor response from 1.06 to 3.29, approximately 3 times higher than that of undoped WO3. Limit of detection (LOD) up to 500 ppb is achieved for 1% Ag–WO3, substantiating the role of Ag in improving sensor performance