SiO2包覆的&beta;-NaYF4：Eu3+及透明发光薄膜的制备和性能研究

蒋晨飞; 黄文娟; 丁明烨; 黄亨明; 倪亚茹; 陆春华; 许仲梓

doi:10.3788/fgxb20133401.0012

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SiO₂包覆的β-NaYF₄：Eu³⁺及透明发光薄膜的制备和性能研究

半导体发光、激光和光电性质 | 更新时间：2020-08-12

- SiO₂包覆的β-NaYF₄：Eu³⁺及透明发光薄膜的制备和性能研究
- Preparation and Properties of SiO₂ Coated β-NaYF₄：Eu³⁺ Transparent Luminescent Thin Films
- 发光学报 2013年34卷第1期页码：12-17
- 作者机构：
  
  南京工业大学材料科学与工程学院, 江苏南京 210009
- 作者简介：
- 基金信息：
  
  国家自然科学基金(20901040/B0111)();江苏省高校自然科学研究重大项目(10KJA430016)();江苏省普通高校研究生科研创新计划(CXLX11-03
- DOI：10.3788/fgxb20133401.0012
  中图分类号： O482.31
- 纸质出版日期：2013-1-10，
  
  收稿日期：2012-1-25，
  
  修回日期：2012-6-24，
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蒋晨飞, 黄文娟, 丁明烨, 黄亨明, 倪亚茹, 陆春华, 许仲梓. SiO2包覆的β-NaYF4：Eu3+及透明发光薄膜的制备和性能研究[J]. 发光学报, 2013,(1): 12-17

JIANG Chen-fei, HUANG Wen-juan, DING Ming-ye, HUANG Heng-ming, NI Ya-ru, LU Chun-hua, XU Zhong-zi. Preparation and Properties of SiO2 Coated β-NaYF4：Eu3+ Transparent Luminescent Thin Films[J]. Chinese Journal of Luminescence, 2013,(1): 12-17
蒋晨飞, 黄文娟, 丁明烨, 黄亨明, 倪亚茹, 陆春华, 许仲梓. SiO2包覆的β-NaYF4：Eu3+及透明发光薄膜的制备和性能研究[J]. 发光学报, 2013,(1): 12-17 DOI： 10.3788/fgxb20133401.0012.

JIANG Chen-fei, HUANG Wen-juan, DING Ming-ye, HUANG Heng-ming, NI Ya-ru, LU Chun-hua, XU Zhong-zi. Preparation and Properties of SiO2 Coated β-NaYF4：Eu3+ Transparent Luminescent Thin Films[J]. Chinese Journal of Luminescence, 2013,(1): 12-17 DOI： 10.3788/fgxb20133401.0012.

摘要

通过溶胶-凝胶方法对-NaYF

:Eu

进行了表面SiO

包裹处理

并将其分散于溶胶中提拉成膜

制备成发光薄膜。采用XRD、SEM、TEM、FTIR、UVPC、PL等测试手段进行了分析表征。结果表明:NaYF

表面被成功包裹上了一层SiO

形成了核壳结构

并除去了表面油酸等有机物。表面包裹对NaYF

的晶型结构没有产生影响

但荧光性能略有下降

形貌趋向于圆形

这是由于表面SiO

颗粒在形成网络结构的张力和溶剂溶解所致。采用提拉浸渍镀膜后

发光粒子比较好地分散在薄膜上

并且具有比较理想的透过率

呈现出一定的减反射效果。由于SiO

包裹和热处理

空位缺陷增强了Eu

在420~500nm波段的发光

这对整个发光性能是有利的。而因为能量转移

产生无辐射跃迁

613nm处发光产生猝灭。通过实验

优化确定了制备发光薄膜的最佳工艺。

Abstract

-NaYF

: Eu

@SiO

nanoparticles were prepared by sol-gel method and were dispersed in the sol to obtain luminescent thin films through dip-coating process. XRD

SEM

TEM

FTIR

UVPC and PL were used to characterized the nanoparticles and transparent films. The results indicated that the oleic-acid was removed from the nanoparticles and SiO

was coated on the particles successfully. The SiO

shell has no influence on the crystalline structure and its fluorescence perfor-mance declines slightly. The morphology of -NaYF

: Eu

transforms to nanospheres due to the solvent solution and tension of network structure of SiO

. The nanoparticles were dispersed in the thin films uniformly

and the films also have good transmittance and minus reflection effect. After coating and thermal treatment

the luminescence intensity from 420 to 500 nm was enhanced owing to the oxygen vacancy. But the luminescence at 613 nm quenches because of the energy transfer and nonradiative transition. The optimal technological parameters of the films were obtained by testing.

关键词

溶胶-凝胶法&beta-NaYF4：Eu3+SiO2包裹发光薄膜

Keywords

sol-gel method&beta-NaYF4：Eu3+SiO2 coatingluminescent thin films

references

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SiO2包覆的β-NaYF4：Eu3+及透明发光薄膜的制备和性能研究

Preparation and Properties of SiO2 Coated β-NaYF4：Eu3+ Transparent Luminescent Thin Films

DOI：10.3788/fgxb20133401.0012

摘要

Abstract

关键词

Keywords

references

SiO₂包覆的β-NaYF₄：Eu³⁺及透明发光薄膜的制备和性能研究

Preparation and Properties of SiO₂ Coated β-NaYF₄：Eu³⁺ Transparent Luminescent Thin Films