Encapsulation of lanthanides in ternary I–III–VI AgInS2 nanocrystals and their physical properties

Novel nanoparticles of AgInS 2 doped with trivalent lanthanide ions were synthesized by a one-pot reaction at low temperature. Well-defined microstructures were achieved and very uniform nanocrystals with regular shapes were found in lanthanide incorporated AgInS 2 . These nanoparticles exhibited red emissions under ultraviolet excitation. The resultant luminescence intensities could be tuned by controlling the diffusion of different lanthanides. This design strategy and remarkable features of morphology or photoluminescence will expand their application in optical fields.