LIU Dong-yue, CHEN Hao, GAO Xiao-fei, et al. Preparation and Luminescent Properties of Red PhosphorCa1.9(Si0.8P0.2)O4∶Eu3+ for LED[J]. 2019, 24(3): 117-122.
LIU Dong-yue, CHEN Hao, GAO Xiao-fei, et al. Preparation and Luminescent Properties of Red PhosphorCa1.9(Si0.8P0.2)O4∶Eu3+ for LED[J]. 2019, 24(3): 117-122.DOI: 10.15938/j.jhust.2019.03.019.
Eu3+)powders were prepared by high temperature solid state reaction method. Thefactors affecting the photoluminescence properties were systematicallyinvestigated
which including calcination temperature
calcination time anddoping concentration of rare earth ions.The characterization analysis showedthat the preparation conditions of Ca1.9(Si0.8P0.2)O4∶Eu2+weredetermined as follows: calcination temperature
time and doped Eu2+concentration were 1275℃
4h and 4%
respectively. TheMaximum excitation wavelength of this sample was 374nm
and the maximumemission wavelength was 500nm. The emitting color of Ca1.9(Si0.8P0.2)O4∶Eu2+was green. Theprocess conditions of preparing Ca1.9(Si0.8P0.2)O4∶Eu3+were determined as follows: calcination temperature
calcination time andconcentration of doped Eu2+ were 1300℃
4h and 6%
respectively. The Maximum excitation wavelength ofthis sample was 394nm
and the maximum emission wavelength was 589nm. Theemitting color of Ca1.9(Si0.8P0.2) O4∶Eu3+ wasred.