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| 白光发光二极管用荧光粉Ca0.5Sr0.5MoO4:Eu3+的制备及表征 | |
| 引用本文： | 施伟梅,陈建福,高绍康.白光发光二极管用荧光粉Ca0.5Sr0.5MoO4:Eu3+的制备及表征[J].硅酸盐学报,2011,39(2):219-222. |
| 作者姓名： | 施伟梅 陈建福 高绍康 |
| 作者单位： | 1. 赣南医学院药学院,江西赣州341000;福州大学化学化工学院,福州350002 2. 漳州职业技术学院食品与生物工程系,福建漳州,363000 3. 福州大学化学化工学院,福州,350002 |
| 摘 要： | 采用以柠檬酸作为螯合剂的溶胶-凝胶法成功制备了新型纳米级红色荧光粉Ca0.5Sr0.5MoO4:Eu3+.通过X射线衍射、扫描电镜和荧光光谱等对该荧光粉进行了表征.结果表明:该荧光粉平均粒径为700 nm,在近紫外区395nm和蓝光区467nm光激发下都可发射出615 nm处的强烈红光,此外,Ca0.5Sr0.5MoO... |
| 关 键 词： | 光谱性质 红色荧光粉 溶胶-凝胶法 钼酸锶钙 铕 |
Preparation and Characterization of Red-Luminescence Phosphors Ca0.5Sr0.5MoO4:Eu3+ for White-Light-Emitting Diodes |
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| SHI Weimei,CHEN Jianfu,GAO Shaokang.Preparation and Characterization of Red-Luminescence Phosphors Ca0.5Sr0.5MoO4:Eu3+ for White-Light-Emitting Diodes[J].Journal of The Chinese Ceramic Society,2011,39(2):219-222. | |
| Authors: | SHI Weimei CHEN Jianfu GAO Shaokang |
| Affiliation: | 1.College of Pharmacy,Gannan Medical University,Ganzhou 341000,Jiangxi;2.Department of Food and Biology Engineering, Zhangzhou Institute of Technology,Zhangzhou 363000,Fujian;3.College of Chemistry and Chemical Engineering, Fuzhou University,Fuzhou 350002,China) |
| Abstract: | A novel nano red-emitting phosphors Ca0.5Sr0.5MoO4:Eu3+ were successfully synthesized via the sol-gel method using citric acid as a chelate. The resultant powders were characterized by X-ray diffraction, scanning electron microscopy, and photolumi-nescent spectroscopy. The results show that the particle size of the synthesized phosphors is about 700 nm. It also shows that the synthesized phosphor powders can be effectively excited at the wavelengths of 395 run in ultraviolet light area and 467 nm in blue light area, and it has an intense red emission at 615 nm. Furthermore, the optimal concentration of Eu3+ in Ca0.5Sr0.5MoO4:Eu3+ is about 10%, the best firing temperature is at 1000 ℃ and the emission intensity becomes five times stronger as the introduction of Na+ acting as charge compensation in Ca0.5Sr0.48MoO4:0.01Eu3+, 0.01Na+. It is considered to be an efficient red-emitting phosphor for white light-emitting diodes (w-LEDs). |
| Keywords: | spectral property red phosphors sol-gel strontium calcium molybdate europium |
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