Method for preparing white light source with dual-band-gap photonic crystals

摘要: The invention belongs to the technical field of luminescence and illumination, relates application technology photonic crystals, particularly a preparation method utilizing dual-photonic-band-gap characteristic large specific surface area dual-band-gap crystals improve luminescent intensity white light source. includes steps that three-primary-color material suitable for ultraviolet excitation is selected, then crystal thin film with high quality built, dual-photon forbidden bands solid are respectively matched peak position wavelength an LED emitting red material, combined prepare source which in intensity. simple process low cost, obtained can be applied background auxiliary source, illumination like display device.