Liu, Zhilong and Wang, Qin and Yang, Yuming and Tao, Chunyan and Yang, Hua (2010) Luminescent properties of codoping Y2O3: Eu, Me (Me = Mg, Ca) nanorods. Journal of Nanoparticle Research, 12 (6). pp. 2233-2240.
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Phosphors of nanorods Y2O3: Eu (Mg, Ca) have been prepared by the hydrothermal method. The effect of Mg, Ca co-dopants on the Y2O3: Eu phosphor photoluminescence (PL) property was investigated. Upon excitation with ultraviolet (UV) irradiation, it is shown that there is a strong emission at around 610 nm corresponding to the forced electric dipole 5D0–7F2 transition of Eu3+. At a certain concentration, Mg, Ca ions’ doping effectively enhanced the luminescent properties of Y2O3: Eu3+ nanorods and did not change the cubic phase of the host. The structure of Y2O3: Eu3+ (Mg, Ca) phosphors was characterized by X-Ray diffraction (XRD). From XRD patterns, it is indicated that the phosphor Y2O3:(Eu, Ca) forms without impurity phase. From SEM, TEM images, it is shown that the crystal size of the nanorods phosphors is about 1–2 μm in length and 30–50 nm in diameter.
|Uncontrolled Keywords:||Y2O3 Eu - Luminescence - Codoped Mg Ca - Nanorod|
|Subjects:||Material Science > Nanostructured materials|
|Deposited On:||02 Aug 2010 15:50|
|Last Modified:||02 Aug 2010 15:50|
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