申请人:Hoppe Holger
公开号:US20070221884A1
公开(公告)日:2007-09-27
The present invention relates to luminescent SiO
z
, flakes, especially porous luminescent SiO
z
flakes, wherein 0.70≦z≦2.0, especially 0.95≦z≦2.0, comprising an organic, or inorganic luminescent compound, or composition, which can provide enhanced (long term) luminescent efficacy.