Construction of energy transfer channels from [SbCl6]3− to Ln3+ (Ln3+ = Ho3+, Er3+) in Cs2NaGdCl6 for advanced anti-counterfeiting materials

Construction of energy transfer channels from [SbCl 6 ] 3− to Ln 3+ (Ln 3+ = Ho 3+ , Er 3+ ) in CNGC opens up new possibilities for high security anti-counterfeiting applications.