Near-Infrared NIR Luminescent Materials

Eu and Tb, thus resulting in more efficient nonradiative decay through high-energy C-H, N-H, and O-H oscillators in the ligands and solvents [96]. 

Additionally, a series of NIR luminescent Ln-Ag HMOFs, LnAg5(l,2-BDC)4 (Ln = Yb, Er, Ho, 1,2-BDC = 1,2-benzenedicarbolylate) have been reported by Jin et al. [193]. The HMOF YbAg5(l,2-BDC)4 shows a broad emission band ranging from 950 to 1,050 run assigned to the Fs/2 F7/2 transition of the Yb ion, and the ErAg5(l,2-BDC)4 exhibits abroad emission band extending from 1,450 to 1,650 nm 

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