公开(公告)号：EP0266384B1

公开(公告)日：1991-09-18

申请号：EP87902561.7

申请日：1987-04-29

申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)

发明人： FOUASSIER, Claude, Emile, Pierre ,  FU, Wen, Tian ,  HAGENMULLER, Paul

IPC分类号： C09K11/00

CPC分类号： C09K11/778 ,  C09K11/7485 ,  C09K11/7712 ,  C09K11/7726 ,  C09K11/774 ,  C09K11/7755 ,  C09K11/7797

摘要： Monophase crystalline mixed borates having the formula: M(II)1-xEu(II)xM(III)pEu(III)qTb(III)rB9O16 wherein M(II) is at least one bivalent metal selected amongst barium, strontium, lead and calcium, it being understood that, in a given mixed borate, the lead and the calcium, together represent not more than 20% by moles based on the total number of moles of metals M(II); M(III) is a metal selected amongst lanthanum, gadolinium, yttrium, serium, lutetium and bismuth; x is a number higher or equal to zero and smaller than or equal to 0.2; p, q and r represent each a number which may vary from 0 to 1, it being understood that, for a given borate: one of the numbers x, q and r is different from zero; and the sum p + q + r equals 1; preparation method and luminescent composition containing them.