Circularly polarized luminescence-active low molecular weight lanthanide gels: tunable emission including white light

Abstract

Circularly polarized luminescence (CPL)-active lanthanide gels are seldom reported, despite their vast potential for various applications. Here, we report CPL-active lanthanide gels with a high dissymmetry factor (g_lum) and a high quantum yield of 59%. This is the first report of both left- and right-handed CPL-active lanthanide gels by employing simple low molecular weight chiral gelators. Moreover, tunable CPL signals, including white light-emitting CPL, were obtained. We can further upgrade the material's applicability as a potential anti-counterfeit up to a 4-tier security tag.