Synthesis, Characterization and Photoluminescence of Y2O3∶Eu3+ Nanorods by the Combination of Microemulsion and Microwave Heating

PANG Qi; QIN Li-qin; HAN Jian-peng; SHI Jian-xin; GONG Meng-lian

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Synthesis, Characterization and Photoluminescence of Y₂O₃∶Eu³⁺ Nanorods by the Combination of Microemulsion and Microwave Heating

paper | 更新时间：2020-08-12

- Synthesis, Characterization and Photoluminescence of Y₂O₃∶Eu³⁺ Nanorods by the Combination of Microemulsion and Microwave Heating
- Chinese Journal of Luminescence Vol. 30, Issue 2, Pages: 233-238(2009)
- 作者机构：
  
  1. 玉林师范学院化学与生物系,广西玉林,537000
  2. 广西师范大学化学化工学院,广西桂林,541004
  3. 光电材料与技术国家重点实验室中山大学化学与化学工程学院,广东广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：25 August 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2009，
  
  Published：30 April 2009
- 稿件说明：
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PANG Qi, QIN Li-qin, HAN Jian-peng, et al. Synthesis, Characterization and Photoluminescence of Y₂O₃∶Eu³⁺ Nanorods by the Combination of Microemulsion and Microwave Heating[J]. Chinese journal of luminescence, 2009, 30(2): 233-238.
DOI：

PANG Qi, QIN Li-qin, HAN Jian-peng, et al. Synthesis, Characterization and Photoluminescence of Y₂O₃∶Eu³⁺ Nanorods by the Combination of Microemulsion and Microwave Heating[J]. Chinese journal of luminescence, 2009, 30(2): 233-238. DOI：

摘要

用简单的微乳液-微波法合成大小和形貌可控的Y

: Eu

纳米棒晶体。XRD结果表明

所制备样品为Y

: Eu

纯相

属于体心立方晶系。TEM结果表明

随着水乳比ω

从5变化到35时

粒子发光粉的形状由纳米颗粒状变为纳米棒

纳米棒的直径约为30~50 nm

纳米棒长约为200~300 nm。激发光谱和发射光谱分析表明

最大的激发带是位于254 nm的Eu

-O

电荷迁移带。最大发射峰位于611 nm

属于Eu

的特征发射。Y

: Eu

纳米发光粉的发光强度随着ω

的增加而增强。发光寿命分析表明Y

: Eu

纳米棒中Eu

的发光寿命为2.03 ms。在阴极射线发光真空装置中测得的I-V曲线表明Y

: Eu

纳米棒薄膜的启动电压仅1 300 V。同时

在2 000 V外加电压下可以清楚地观察到Y

: Eu

纳米棒的阴极射线发光为Eu

离子的特征红光。

Abstract

Europium (Ⅲ)-doped yttrium oxide (Y

∶Eu

) nanoparticles and nanorods were prepared by a novel combination approach

microemulsion-microwave heating. X-ray diffraction (XRD) analysis confirmed the formation of Y

∶Eu

phase. TEM results indicated that the synthesized samples show olive-ball-like morphology with 20~100 nm size or nanorod morphology about 30~50 nm in width and 200~300 nm in length. The nano-Y

∶Eu

samples emit much strong red light due to the

transitions of Eu

ions under near UV excitation

especially around 254 nm. The key excitation band at around 254 nm was originated from the Eu

-O

charge transfer. The PL intensity increases along with the increase in the particle size and the ratio of water to surfactant ω

.The fluorescence decay time of the Y

∶Eu

nanorod is about 2.03 ms. The I-V curve of cathodoluminescence for the Y

∶Eu

nanorod deposited on ITO glass showed that the startup voltage was only about 1 300 V.

关键词

Keywords

references

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