A highly luminescent chameleon: fine-tuned emission trajectory and controllable energy transfer

摘要

By varying the stoichiometric ratio of Eu~(3+), Tb~(3+) and Gd~(3+) ions in a lanthanide metal-organic framework, a mixed-Ln MOF, [Eu_(0.0040)Tb_(0.0460)Gd_(0.9500)(BTB)(DMSO)_2] ? H2O, has been designed to display white-light emission. In addition, the switch between blue, white, and yellow for this material has been achieved by controlling the energy transfer process.