| 前驱溶液的PH值对Y2O3: Eu3＋荧光粉发光性质的影响 |
| |
| 引用本文： | 王超男,王志芳,张慰萍,尹民.前驱溶液的PH值对Y2O3: Eu3＋荧光粉发光性质的影响[J].原子与分子物理学报,2008,25(4):760-766. |
| |
| 作者姓名： | 王超男 王志芳 张慰萍 尹民 |
| |
| 作者单位： | 1. 中国科学技术大学物理系, 合肥 230026;合肥微尺度物质科学国家实验室, 合肥 230026
2. 中国科学技术大学物理系,合肥,230026 |
| |
| 基金项目： | 国家自然科学基金，国家自然科学基金国际(地区)合作与交流项目，教育部高等学校博士学科点专项科研基金，安徽省人才基金 |
| |
| 摘 要： | 以甘氨酸为燃料,采用溶液燃烧法制备了Y2O3:Eu3 (3%)纳米粉末,并研究了制备过程中前驱溶液的pH值对Y2O3:Eu3 发光性质的影响.从XRD和SEM分析得到,随着溶液pH值的增大,样品颗粒逐渐变大,并且多孔粉末变得越来越致密.通过对样品发光性质的测量得到,随着pH值的增大,样品发光逐渐增强,但寿命逐渐变短.激发谱显示,基质吸收和电荷迁移带的相对强度比随着pH值的增大逐渐减小.
|
| 关 键 词： | 发光 燃烧法 |
| 修稿时间： | 3/5/2008 12:00:00 AM |
Influence of acidity on properties of combustion-derived Y2O3: Eu3+ phosphors |
| |
| WANG Chao-Nan,WANG Zhi-Fang,ZHANG Wei-Ping,YIN Min.Influence of acidity on properties of combustion-derived Y2O3: Eu3+ phosphors[J].Journal of Atomic and Molecular Physics,2008,25(4):760-766. |
| |
| Authors: | WANG Chao-Nan WANG Zhi-Fang ZHANG Wei-Ping YIN Min |
| |
| Institution: | Department of Physics,University of Science and Technology of China, Hefei 230026, China; Hefei National lab for Physical Science at the Mocroscale, University of Science and Technology of China, Hefei 230026, China,Department of Physics,University of Science and Technology of China, Hefei 230026, China,Department of Physics,University of Science and Technology of China, Hefei 230026, China and Department of Physics,University of Science and Technology of China, Hefei 230026, China; Hefei National lab for Physical Science at the Mocroscale, University of Science and Technology of China, Hefei 230026, China |
| |
| Abstract: | Y2O3: Eu3+ (3%) nano powders were prepared by auto-combustion method and the effect of PH value of the precursor solution was investigated. The XRD and SEM analyses indicate that samples prepared under high PH value have less porous morphology and larger particle size, at the same time, they present stronger luminescence intensity revealed by emission. The excitation spectra show that the relative intensity of host absorption to charge transfer band decrease with the increase of PH value and the decay curves show shorter lifetime with the increase of crystalline size. |
| |
| Keywords: | Y2O3 Y2O3 luminescence combustion |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《原子与分子物理学报》浏览原始摘要信息 |
| 点击此处可从《原子与分子物理学报》下载免费的PDF全文 |
|
