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Citation: ZHAO Jing, LI Huai-Xiang, WANG An-He, ZHOU Hong-Wei, ZUO Xiang-Qing. A Study of CaSiO₃∶Pb, Mn Phosphors Coated by ZnO∶Al[J]. Acta Physico-Chimica Sinica, ;2006, 22(03): 286-290. doi: 10.3866/PKU.WHXB20060306 shu

A Study of CaSiO₃∶Pb, Mn Phosphors Coated by ZnO∶Al

1.
College of Physics and Electronics; College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Ji′nan 250014, P. R. China

Received Date: 10 August 2005
Available Online: 10 March 2006

CaSiO3∶Pb, Mn phosphor particles with red-luminescence were prepared by aqueous co-deposition reaction. Surface modification of CaSiO3∶Pb, Mn phosphors was carried out by coating transparent conductive films of Al-doped zinc oxide which were formed by homogeneous phase co-precipitation and heat treatment process. The coated phosphors were characterized by X-ray diffraction (XRD), photoluminescence (PL), transmittance electron microscopy (TEM) and conductance measurements. The results showed that the conductivity of ZnO∶Al-coated phosphors, n(Zn)/n(Ca)=10%, n(Al)/n(Zn)=5%, had been improved obviously while the corresponding photoluminescence intensity remained the same as the as-prepared phosphors. For lowering the resistivity of phosphors, experimental conditions have been optimized, which include hydrolyzing at 75 ℃ for 1.5 h, heat treatment at 500 ℃ for 45 min, respectively.
- Homogeneous phase co-precipitation; Surface modification; Photoluminescence; Phosphor; Zinc oxide
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沈阳化工大学材料科学与工程学院沈阳 110142

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A Study of CaSiO3∶Pb, Mn Phosphors Coated by ZnO∶Al

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通讯作者: 陈斌, bchen63@163.com

A Study of CaSiO₃∶Pb, Mn Phosphors Coated by ZnO∶Al