Novel red-emitting vanadate phosphor and Synthesis thereof

摘要

The present invention is calcium , strontium , and the matrix composed by containing a vanadium atom, containing europium as the active element to a red phosphor , 250 nm or more indicate a high light emission efficiency in the long wavelength ultraviolet range , so the UV light emitting diode relates to methods for their preparation and useful vanadate -based red phosphor when used as an excitation energy source .