Security printing of covert quick response codes using upconverting nanoparticle inks
Meruga, Jeevan M, Cross, William M, Stanley May, P, Luu, QuocAnh, Crawford, Grant A, Kellar, Jon JVolume:
23
Language:
english
Journal:
Nanotechnology
DOI:
10.1088/0957-4484/23/39/395201
Date:
October, 2012
File:
PDF, 1.37 MB
english, 2012