Cathodoluminescence Properties of Commercial Phosphors for White LED

The results of the study of spectral and decay kinetic characteristics of the pulse cathodoluminescence (PCL) for the group of industrial “white” LEDs phosphors with different composition of the host and dopants are presented. The quantitative characteristics of the PCL: position and half-width of the luminescence spectra, the luminescence decay times were determined.

Effect of the Shape of Beans on the Properties of Delayed Luminescence and Decay Kinetic Models

The decay kinetic models of delayed luminescence of beans have been examined, the effect of the shape of bean samples on the properties of delayed luminescence has been investigated. It is showed the delayed luminescence of beans mainly comes from the surface of beans and can’t reflect the whole information of beans. After beans being crushed, the component of beans can be mixed together. When luminescence, the components of beans powders are all irradiated, which can reflect the whole information of beans. The fitting degree of hyperbolic function is best.