文章基本信息

标题：真空紫外光励起高効率UV発光蛍光体
本地全文：下载
作者：吉田尚史 ; 皆本真樹 ; 林正人等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2001
卷号：55
期号：4
页码：566-570
DOI：10.3169/itej.55.566
出版社：The Institute of Image Information and Television Engineers
摘要：We have developed ultraviolet (UV) phosphors of a new type that is suitable for excitation by the vacuum ultraviolet (VUV) light generated by Xe discharge. The phosphors contain gadolinium (Gd) and praseodymium (Pr) in yttrium fluoride (YF₃). The YF₃ : Gd, Pr phosphor exhibits a strong emission line at 311 nm, and a weak emission band around 407 nm. The photoemission intensity of the 311-nm line is about 10 times as strong as for conventional UV phosphors. These emissions are effectively stimulated under excitation in the range from 150 to 200 nm, which corresponds to the f-d transition in Pr³⁺ ions. These results suggest that the strong emission of UV is due to a highly efficient transfer of energy from Pr³⁺ to Gd³⁺ ions. The process of energy transfer between these ions is discussed in terms of the experimental results of this and other studies.
关键词：蛍光体;ふっ化物;紫外光;ガドリニウム;プラセオジム;エネルギー伝達