Efficient phosphors based on organic dyes encapsulated in nanoporous nickel phosphate VSB-1

Different dyes were introduced into the channels of nanoporous material of nickel phosphate VSB-1 (Versailles Santa Barbara-1) by a wet-chemistry method. Narrower absorption and large blue-shift of photoluminescence bands as well as 50, 45, and 57 times enhanced intensities were obtained after being encapsulated in the channels of VSB-1 for dye 1, 2, and 3, respectively. The three dyes selected for encapsulation in VSB-1 emit red, green, and blue lights, respectively, which favor their application in optical devices. Thus, the narrower FWHM and higher emission efficiency for dyes encapsulated in VSB-1 materials make them good candidates for tricolor lamps, light-emitting diode, or miscellaneous materials.