Fluorescent material with ultra-long afterglow and its preparing process and application

Application Number: 00102924
Application Date: 2000.03.09
Publication Number: 1313376
Publication Date: 2001.09.19
Priority Information:
International: C09K11/79
Applicant(s) Name: Haozhi Science and Technology Development Co ltd, Beijing
Inventor(s) Name: Dai Youyuan;Zhu Dequan;Dai Dongxi
Patent Agency Code: 72002
Patent Agent: gan ling
Abstract a fluorescent material with ultralong afterglow and its preparing process and application are disclosed. Its formula is (MeIIO)3. MIII2O3.(MIVO2)3.xRO.yTR2O3, where MeII is chosen from Mg, Ca, Sr snad Zn, MIII is chosen from Al,V, Ga and B, MIV is chosen from Si, Zr, Ti and Hf, R is chosen from Eu, Sm, Yb and Sn, TR is chosen from La, Nd, Ce, Er, Ho, Y, Gd, Bi, Sc, Pr, Sb and Tb, x=0.001-1 and y is 0.0001-10.