Abstract
A new intense green light-emitting phosphor, the Eu2+-doped (BaO–BaCl2–SiO2) phosphor system, was synthesized at 800°C by the conventional high-temperature solid-state reaction. Its structure and luminescence properties were investigated by using thermogravimetry-differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), diffuse reflection spectra, photoluminescence (PL) and photoluminescence excitation (PLE) spectra. The photoluminescence spectrum reveals that this phosphor can be efficiently excited by near-ultraviolet (UV) light and blue light in the wavelength region covering 280 and 480 nm, which perfectly matches the emission wavelength of near-UV light-emitting diodes (LEDs). It emits an intense green light peaking at 502 nm, which is promising to develop possible applications for white LEDs.
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