[1]韩亚芬,陆天虹,李邨,等.不同分子量PDMS与铕形成配合物的光谱特性研究[J].南京师大学报(自然科学版),2007,30(02):58-62.
　Han Yafen,Lu Tianhong,Li Cun,et al.Study on Spectrum Properties of Eu3+ Complex With Different Molecular Weights of Polydimethylsiloxane[J].Journal of Nanjing Normal University(Natural Science Edition),2007,30(02):58-62.
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不同分子量PDMS与铕形成配合物的光谱特性研究()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第30卷
期数:
2007年02期
页码:
58-62
栏目:
化学
出版日期:
2007-06-30

文章信息/Info

Title:
Study on Spectrum Properties of Eu3+ Complex With Different Molecular Weights of Polydimethylsiloxane
作者:
韩亚芬;陆天虹;李邨;黄晓华;
南京师范大学化学与环境科学学院, 江苏南京210097
Author(s):
Han Yafen; Lu Tianhong; Li Cun; Huang Xiaohua
School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China
关键词:
聚二甲基硅氧烷;  铕离子;  荧光光谱
Keywords:
po lydim ethylsiloxane;  Eu 3+ ;  photo lum inescence
分类号:
O641.4
摘要:
Eu3+与不同分子量的聚二甲基硅氧烷(PDMS)形成的配合物PDMS-Eu(Ⅲ)受紫外光激发后,激发的PDMS将吸收的能量传递给Eu(Ⅲ),使Eu(Ⅲ)受到激发,因而使其在可见光区的发射荧光峰增强.由于PDMS-Eu(Ⅲ)中不同分子量的PDMS的构象不同,受光激发后的能量也不同,因此,含不同分子量PDMS配体的PDMS-Eu(Ⅲ)从PDMS到Eu(Ⅲ)的能量传递效率也不同,使Eu(Ⅲ)在可见光区的发射荧光峰峰强也不同.当PDMS的分子量为30 000时,PDMS-Eu(Ⅲ)的能量传递效率最高,可达48.22%, 因而Eu( Ⅲ)在可见光区的发射荧光峰峰强最强.
Abstract:
After PDM S- Eu( III) com plex es form ed from Eu3+ and PDM S is exc ited w ith ultrav io let light, the exc ited PDM S w ould transfer the absorption ene rgy to Eu( Ⅲ ), lead ing to the increase in the em ission fluorescence peaks o f Eu( Ⅲ ) in the v isible area. Because the conform ations o f PDM S- Eu( Ⅲ ) com plexes w ith PDM S of d ifferent m o lecularw e ights a re different, the ir energ ies are different after the exc itation o f the light. Thus, the ir energy transfer effic iency from PDM S to Eu( Ⅲ ) are d ifferent, leading to the d if ferent intensity o f the em ission fluorescence peaks o f Eu( Ⅲ ) in the v isib le area. When the m o lecular w e ight o f PDM S is 30 000, the energy transfer efficiency o f PDM S- Eu( Ⅲ) is the h ighest. It reaches 48.2%. Therefore, the intensity of the em iss ion fluorescence peaks of Eu( Ⅲ ) in the v isible area is the h ighest.

相似文献/References:

[1]徐娟,黄晓华,张俊松,等.铕与聚二甲基硅氧烷高分子配合物的荧光光谱研究[J].南京师大学报(自然科学版),2003,26(02):115.

备注/Memo

备注/Memo:
基金项目: 国家自然科学基金( 20471030)、国家发改委稀土专项基金(GFZ040628 )、江苏省高新技术基金( BG2005040)资助项目.
作者简介: 韩亚芬( 1981- ) , 女, 硕士研究生, 主要从事稀土材料的学习与研究. E-m ail: hanfeifeinjnu@ 163.com
通讯联系人: 黄晓华( 1958- ) , 女, 教授, 博士生导师, 主要从事稀土材料的教学与研究. E-m ail: wxxhhuang@yahoo. com
更新日期/Last Update: 2013-05-05