Luminescence properties of ZrW2O8:Eu3+ nanophosphors for white light emitting diodes

作者：Liao, Jinsheng^*; Liu, Shaohua; Wen, He-Rui; Nie, Liling; Zhong, Laifu

来源：Materials Research Bulletin, 2015, 70: 7-12.

DOI：10.1016/j.materresbull.2015.04.010

• A. Optical materials
• B. Chemical synthesis
• B. Luminescence
• D. Phosphors

ZrW(2)O8:EU3+ nanophosphors (ca. 60 nm) with different Eu3+ doping concentrations were obtained using hydrothermal syntheses. X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), photoluminescence excitation and emission spectra as well as decay curve measurements were used for the characterization. Under 466 nm excitation, strong red emission at 616 nm corresponding to D-5(0)-F-7(2) transition of Eu3+ was observed for ZrW2O8:Eu3+ (9 mol%) phosphors. The values of intensity parameter Omega(2) and Omega 4 are 17.82 x 10(-20) cm(2) and 1.092 x 10(-20) cm(2), respectively. The high quantum efficiency of 83.5% of the ZrW2O8:Eu3+ (9 mol%) suggests this material could be promising red phosphor for generating white light in phosphor-converted white light-emitting diodes (LED).

• 出版日期2015-10
• 单位江西理工大学