分享好友 知识库首页 频道列表

Blue-emitting phosphors for long-middle ultraviolet ray and their production method

2025-06-17 22:271060下载
文件类型：PDF文档
文件大小：582K
PURPOSE : Provided are a blue phosphor for long-middle UV rays which shows a wide range of blue spectrum and whose color purity and brightness can be changed according to the kind of a sensitizer, its preparation method, and a long-middle UV light emitting device containing the phosphor.CONSTITUTION : The blue phosphor comprises Na2O·K2O·Al2O3·SiO2 as a matrix and europium (Eu) or cerium (Ce) as an activator and is represented by (Na_v K_(1-v))_w Al_(2 ±x) Si_(6±y) O_(15±(w+3x+4y)/2) : zRE, wherein v, w, x, y and z represent a mole number; 0
反对 0
举报 0
收藏 0
打赏 0
评论 0