[Up-conversion luminescent properties of SrAl2O4: Eu2+, Dy3+ phosphors].
Strong green up-conversion emission was observed for the first time in europium and dysprosium co-doped strontium aluminate (SrAl2O4: Eu2+, Dy3+) phosphor under 980 nm infrared excitation at room temperature. The up-conversion emission spectrum of phosphors was quite different from that of down-conversion emission spectrum excited by ultraviolet or visible lights. The two kinds of emission spectra implied that there are different mechanisms of emission. The X-ray diffraction (XRD) results revealed that the prepared phosphor has the same crystal lattice and composition as that reported previously.
Ma
Yun-qi
YQ
Department of Chemistry, Tsinghua University, Beijing 100084, China.
Yi
Guang-shun
GS
Sun
Bao-quan
BQ
Chen
De-pu
DP
D000537:Aluminum Oxide / Q000737:chemistry; D004419:Dysprosium / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D005453:Fluorescence; D049449:Luminescence; D009942:Organometallic Compounds / Q000737:chemistry; D010758:Phosphorus / Q000737:chemistry; D010777:Photochemistry; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013324:Strontium / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction
D009942:Organometallic Compounds; D004419:Dysprosium; D010758:Phosphorus; D005063:Europium; D000537:Aluminum Oxide; D013324:Strontium