钒磷酸钇论文稀土掺杂钒磷酸钇低维纳米材料的制备及发光性质.doc

钒磷酸钇论文：稀土掺杂钒磷酸钇低维纳米材料的制备及发光性质
【中文摘要】≤X≤,YPxV1-xO4:Dy3+发出较好的白光；X越低,YPxV1-xO4:Eu3+的色纯度越好。
【英文摘要】Rare earth ions acthe first time, and the nanofibers were also synthesized to compare. The characteristics of them were similar while the nanobelts have a higher PL intensity than that of nanofibers. With the increase of X value, the crystallite size, the emission intensity, the yellow (4F9/2→6H13/2)-to-blue (4F9/2→6H15/2) intensity ratio of Dy3+ and the red (5D0→7F2)- to-orange (3D0→7F1) intensity ratio of Eu3+ decrease, whereas the luminescent intensity of VO43- increases. In addition, YPxV1-xO4:Dy3+ were found to yield white light when the value of X in the range of to , and with the increase of X value, the color purity of YPxV1-xO4:Eu3+ decreases.
【关键词】钒磷酸钇 燃烧法 静电纺丝法 纳米纤维 纳米带 白光
【英文关键词】Yttrium phosphate-vanadate Combustion Electrospinning Nanofibers Nanobelts White light
【目录】稀土掺杂钒磷酸钇低维纳米材料的制备及发光性质
摘要
4-5
ABSTRACT
5
目录
6-8
第一章 绪论
8-20
稀土发光的基本原理
8-9
纳米稀土钒酸盐的研究进展
9-16
高温固相反应法
10
沉淀法
10
溶胶-凝胶法
10-11
水热法与溶剂热法
11
静电纺丝法
11-15
燃烧法
15-16
纳米稀土钒磷酸盐的研究进展
16
CIE-1931表色系统
16-19
CIE-RGB表色系统
16-17
CIE-xyY表色系统
17-19
本文研究的目的和意义
19-20
第二章 实验试剂、仪器及表征方法
20-22
主要实验试剂
20
实验仪器
20
2.