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【答案】应助回帖
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七彩暖玉: 金币+150, 翻译EPI+1, ★★★★★最佳答案 2016-04-09 18:37:11
For rare earth element has unique electron-shell structue, it is widely used as the fluorescent materia. The advantages of rare earth luminescent material are strong absorbing ability and high conversion rate. Especially it has the high emissive power and stable physicochemical property in visible region.
Rare-earth Borate is one of the important research system and has been used in lighting industry. Such as some Rare-earth Borates(Ln=La,Gd,Lu,Y ,Sc;M =Eu3+,Tb3+ and so on) is regarded as a kind of important VUV fluorescent material because of its high luminous efficiency through stimulated by UVU. |
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