Size-controlled nanophosphors prepared by gas-phase flame synthesis with vapor precursors

用蒸气前驱体气相火焰合成制备尺寸控制的纳米磷光体

• 批准号: 20760140
• 负责人: YOKOMORI Takeshi
• 金额: $ 2.75万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20760140/
• 关键词: 燃焼合成; 気体燃焼; 蛍光; ナノ粒子; 拡散火炎; TEM; XRD; 減圧

Rare earth doped nanophosphors were prepared by a gas-phase flame synthesis method, in which some vapors or liquid sprays were used as precursors. The prepared nanophosphors were examined by TEM, SEM, XRD, and fluorescence spectroscopy. The size of nanophosphors prepared with vapor precursors depended on partial pressure of vapor precursor, flame temperature and combustible gas pressure. On the other hand, the photoluminescence characteristics of those phosphors only depend on flame temperature, which influenced on the crystalline structure. As for flame synthesis with liquid spray precursors, the size was controlled by spray droplet size and concentration.

采用气相火焰合成的方法，以蒸汽或液体喷雾为前驱体，制备了稀土掺杂纳米荧光粉。采用透射电镜（TEM）、扫描电镜（SEM）、x射线衍射（XRD）和荧光光谱对制备的纳米荧光粉进行了表征。蒸汽前驱体制备的纳米荧光粉的尺寸取决于蒸汽前驱体的分压、火焰温度和可燃气体压力。另一方面，这些荧光粉的光致发光特性只依赖于火焰温度，而火焰温度对晶体结构有影响。对于液体喷雾前驱体火焰合成，粒径由喷雾液滴大小和浓度控制。

项目成果

Flame Synthesis of Y2O3:Yb, Er Nanophosphors with Vapor Precursors

气相前驱体火焰合成 Y2O3:Yb、Er 纳米磷光体

• 发表时间: 2009
• 期刊: Proceedings of 7th Asia-Pacific Conference on Combustion
• 作者: Takeshi Yokomori;Junichi Tajima;Yasuo Iwako;Masahiko Mizomoto;Toshihisa Ueda
• 通讯作者: Toshihisa Ueda

Introduction of combustion, reactive-thermal fluid science Laboratory

燃烧、反应热流体科学实验室简介

• 发表时间: 2009
• 作者: Osamu Moriue;et al.;Takeshi Yokomori
• 通讯作者: Takeshi Yokomori

希土類系酸化物蛍光ナノ粒子の気相燃焼合成法

稀土氧化物荧光纳米粒子的气相燃烧合成方法

• 发表时间: 2008
• 作者: 横森剛;他
• 通讯作者: 他

Flame Synthesis of Y_2O_3 : Yb, Er Nanophosphors with Vapor Precursors

气相前驱体火焰合成 Y_2O_3：Yb、Er 纳米磷光体

• 发表时间: 2009
• 期刊: Proceedings of 7th Asia-Pacific Conference on Combustion
• 作者: Takeshi Yokomori;et al.
• 通讯作者: et al.

Flame Synthesis of Y203 : Yb, Er Nanophosphors with Vapor Precursors

Y2O3：Yb、Er 纳米磷与蒸气前驱体的火焰合成

• 发表时间: 2009
• 期刊: Proc. of 9th Asia-Pacific Conference on Combustion (掲載決定)
• 作者: Takeshi Yokomori;et.al.
• 通讯作者: et.al.