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| 白光LED用新型红色荧光粉KCaY(MoO4)3:Eu3+的制备及发光性能 | |
| 引用本文： | 从秀华,赵月昌,吴秋芳,高玮.白光LED用新型红色荧光粉KCaY(MoO4)3:Eu3+的制备及发光性能[J].中国稀土学报,2011,29(6). |
| 作者姓名： | 从秀华 赵月昌 吴秋芳 高玮 |
| 作者单位： | 1. 华东理工大学化工学院国家超细粉末工程研究中心,上海,200237 2. 上海华明高纳稀土新材料有限公司,上海,201613 3. 华东理工大学化工学院国家超细粉末工程研究中心,上海200237;上海华明高纳稀土新材料有限公司,上海201613 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 采用高温固相法制备了新型KCaY1-x(Mo04)3:Eux红色荧光粉.利用X射线衍射(XRD)、扫描电镜(SEM)和荧光光谱技术对粉体进行了结构、表面形貌和发光性能表征.结果表明:该系列荧光粉均为四方晶系的白钨矿结构,能够被近紫外光(394 nm)和蓝光(465 nm)有效激发,产生Eu3的5 D0→7 F2特征跃迁红光发射(613 nm).对这种荧光粉作后处理,可改善其表面形貌,并提高其发光强度.该系列荧光粉在394,465 nm的吸收与目前广泛应用的近紫外和蓝光LED芯片的输出波长相匹配.因此这种荧光粉是一种可能应用在白光LED上的红色荧光粉材料. |
| 关 键 词： | 红色荧光粉 钼酸盐 发光 白光LED 后处理 稀上 |
Synthesis and Luminescent Properties of Novel Red-Emitting Phosphors KCaY(MoO4)3 : Eu3 + for White LEDs |
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| Cong Xiuhua,Zhao Yuechang,Wu Qiufang,Gao Wei.Synthesis and Luminescent Properties of Novel Red-Emitting Phosphors KCaY(MoO4)3 : Eu3 + for White LEDs[J].Journal of the Chinese Rare Earth Society,2011,29(6). | |
| Authors: | Cong Xiuhua Zhao Yuechang Wu Qiufang Gao Wei |
| Institution: | Cong Xiuhua1,Zhao Yuechang2,Wu Qiufang1,Gao Wei1,2(1.The State Engineering Research Center of Ultrafine Powder,School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China,2.Shanghai Huaming Gona Rare Earth New Material Co.,Ltd,Shanghai 201613,China) |
| Abstract: | A series of novel red light-emitting phosphors KCaY1-x(MoO4)3:Eux were synthesized by solid-state reaction.The crystal structure,surface morphology and luminescent properties were investigated by powder X-ray diffraction,scanning electron microscope and fluorescence spectrometer,respectively.The result showed that all the phosphors were isostructural,sharing a tetragonal scheelite structure,and could be effectively excited by ultraviolet(394 nm) and blue(465 nm) light,and the main emission line located at 6... |
| Keywords: | red phosphors molybdate luminescence white LED after-treatment rare earths |
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