一、前言稀土(Y_(1-x)·Eux)(P_(1-Y)V(?))O_4·zZ 荧光体是用作高压汞灯内壁涂层的一种新配的荧光材料。较早用作这种荧光材料的氟锗酸镁和磷酸锌锶,但两者在亮度和光色方面都不能同时兼备。七十年初,钒磷酸钇铕(Y·Eu)VO_4荧光体研制成功,并应用到高压汞灯上,使灯光的显色性有了极大的提高,在此基础上,后人将磷(P)引进(Y·Eu)VO_4分子结构, I. Introduction Rare earth (Y_ (1-x) · Eux) (P_ (1-Y) V (O)) O_4 · zZ phosphor is a new fluorescent material used as the inner wall coating of high pressure mercury lamp. Earlier as the fluorescent material of magnesium germanogermanate and zinc phosphate strontium, but both in terms of brightness and light color can not both. At the beginning of the seventy years, the yttrium vanadate yttrium europium (Y · Eu) VO_4 phosphor was successfully developed and applied to the high-pressure mercury lamp, which greatly improved the color rendering of the lamp. On the basis of this, P) The introduction of (Y · Eu) VO_4 molecular structure,