Probing blue long persistent Eu2+/Nd3+ activated (Ca${}_{0.9}$Si${}_{0.1}$)Al${}_2$O${}_6$ emerging phosphor based novel invisible ink for knocking out fake security papers and combat counterfeiting

Vishnu V. Jaiswal, D. Haranath

In the current work, a novel class of (Ca0.9Si0.1)Al2O6:Eu2+,Nd3+ long persistent phosphor was synthesized using high-temperature (1000-1500oC) solid-state reaction method. Further…