Arenz، نويسنده , , Sven and Babai، نويسنده , , Arash and Binnemans، نويسنده , , Koen and Driesen، نويسنده , , Kris and Giernoth، نويسنده , , Ralf and Mudring، نويسنده , , Anja-Verena and Nockemann، نويسنده , , Peter، نويسنده ,
Anhydrous neodymium(III) iodide and erbium(III) iodide were dissolved in carefully dried batches of the ionic liquid 1-dodecyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C12mim][Tf2N]. Provided that the ionic liquid had a low water content, intense near-infrared emission could be observed for both the neodymium(III) ion and for the erbium(III) ion. Luminescence lifetimes have been measured, and the quantum yield of the neodymium(III) sample has been measured. Exposure of the hygroscopic samples to atmospheric moisture conditions caused a rapid decrease of the luminescence intensities.