Gunawan, Poernomo Xu, Rong Lanthanide-Doped Layered Double Hydroxides Intercalated with Sensitizing Anions: Efficient Energy Transfer between Host and Guest Layers Layered double hydroxides (LDHs) doped with Tb<sup>3+</sup> ions in the brucite-like layers were prepared by a simple one-step coprecipitation method at ambient conditions. When 4-biphenylacetate (BPA) anions were intercalated in the interlayer space, a high concentration of Tb<sup>3+</sup> up to around 19 wt % can be homogeneously incorporated in the octahedral lattice of LDHs. The luminescence study indicated that efficient energy transfer from the excited state of the intercalated BPA guest molecules to Tb<sup>3+</sup> centers in the host layers takes place. Compared with LDHs without a photosensitizer, Tb<sup>3+</sup>-doped LDHs intercalated with BPA display much enhanced green luminescence from Tb<sup>3+</sup> ions. Long lifetimes of around 1.3 ms and high quantum yields of 14−22% were obtained. In addition, the emission color of this type of hybrid materials can be tuned from blue to green by varying the amount of Tb<sup>3+</sup> ions. As the compositions of metal cations and interlayer anions in the LDH structure can be easily varied, the inorganic−organic hybrid system reported here opens great opportunity for developing efficient and functional luminescent materials by simple wet chemical methods. emission color;LDH structure;ambient conditions;Sensitizing Anions;metal cations;Guest LayersLayered;1.3 ms;Efficient Energy Transfer;quantum yields;interlayer anions;octahedral lattice;Long lifetimes;luminescence study;host layers;intercalated BPA guest molecules;interlayer space;coprecipitation method;Tb;BPA display;energy transfer;chemical methods 2009-10-01
    https://acs.figshare.com/articles/journal_contribution/Lanthanide_Doped_Layered_Double_Hydroxides_Intercalated_with_Sensitizing_Anions_Efficient_Energy_Transfer_between_Host_and_Guest_Layers/2824858
10.1021/jp905884n.s001