文件类型:PDF文档
文件大小:1098K
A visible light emitting material having rare earth elements as active elements is characterized in that the material contains terbium (Tb) or europium (Eu) or both with praseodymium (Pr) as the rare earth elements.
0下载442浏览304K
0下载235浏览225K
0下载460浏览924K
0下载321浏览147K
0下载330浏览338K