Fluorescent material

Abstract

The invention discloses a fluorescent material. The fluorescent material comprises, by weight, 25 to 35 parts of N-R substituent-p-nitroaniline, 10 to 15 parts of zinc metasilicate, 5 to 10 parts of zinc-cadmium sulfide, 3 to 9 parts of fluorescein, 2 to 5 parts of morin, 10 to 15 parts of a cyclic phenol compound, 3 to 9 parts of zirconia, 2 to 7 parts of alumina and 4 to 10 parts of garnet. The fluorescent material and other fluorescent materials can be combined and be manufactured into a white light luminescence device, or the fluorescent material can be individually used as security pattern fluorescent paint.

Description

technical field [0001] The present invention relates to fluorescent materials. Background technique [0002] The development carried out by Sumitomo Electric Industries, Ltd in Japan in 1999 is to form a CdZnSe thin film on a ZnSe substrate first. After electrification, the thin film emits blue light, and part of the blue light irradiates on the substrate to emit yellow light, and finally mixes to form white light. This method only uses a single LED crystal grain and does not require fluorescent substances, but the luminous efficiency and lifespan are still relatively low, which is where it needs to be further improved. Today's mainstream technology in the industry uses indium gallium nitride blue LEDs with yellow-emitting cerium-activated yttrium aluminum garnet phosphors (yttrium aluminum garnet, (Y, Ce) 3 Al 5 o 12 ), a white light source is formed by the complementary effect between its blue light and yellow light (reference materials. US patents US 6614179, US 660...

AI Technical Summary

Problems solved by technology

Due to the low quantum efficiency of the current yttrium aluminum garnet phosphor, the blue light generated by the LED cannot be effectively utilized, thus deriving the problem of insufficient brightness