UPCONVERSION NANOCRYSTAL MODIFIED COLOR EMMISION PROPERTY COMPRISING SILICA AND MANUFACTURING METHOD FOR THE SAME

摘要

The present invention relates to an upconversion nanocrystal which receives infrared light and emits color, and to an anti-counterfeiting system using the same and, more specifically, to an upconversion nanocrystal with modified color emission properties by the silica, which comprises: a host nanocrystal exhibiting upconversion properties; and a silica dopant formed on the inside and the outside of a lattice structure of the host nanocrystal.