纳米MEH-PPV阵列的光致发光

被引:1
作者
孔凡 [1 ]
黄高山 [1 ]
杨益民 [1 ]
杨昌正 [2 ]
吴兴龙 [1 ]
鲍希茂 [1 ]
袁仁宽 [1 ]
机构
[1] 南京大学物理系
[2] 南京大学化学化工学院
关键词
PPV及其衍生物; 光致发光; 纳米材料;
D O I
暂无
中图分类号
O482.31 [发光学];
学科分类号
070205 ; 0805 ; 080502 ; 0809 ;
摘要
以多孔氧化铝为模板,将可溶性发光聚合物聚(2-甲氧基-5-(2′-乙基己氧基)-1,4-对苯乙炔)(MEH-PPV)镶嵌在纳米孔中,制备出高发光效率的纳米发光聚合物阵列,其光学特性与MEH-PPV薄膜显著不同。纳米孔内的MEH-PPV分子链形成链束,链束中的分子链数目依赖于制备纳米MEH-PPV阵列所用溶液的浓度。相对于稀溶液,在由浓溶液制备的纳米MEH-PPV阵列中,MEH-PPV链束的分子链数目较多,链间作用使MEH-PPV的能带展宽,能隙减小,因而浓溶液获得的纳米MEH-PPV阵列的光致发光峰红移。热处理纳米MEH-PPV阵列的PL谱表明,纳米孔内的聚合物分子链的弛豫运动受到限制。
引用
收藏
页码:785 / 788
页数:4
相关论文
共 8 条
[1]  
L ight-em itting d iodes based on con jugated polym ers. Burroughs J H,B rad ley D D C,B rown A R,et al. Nature . 1990
[2]   Advanced materials [J].
Anon .
2000, Institution of Engineers (Australia) (72)
[3]  
Host-guest chem istry using an oriented m esoporous host:alignm ent and isolation of a sem i-conducting polym er in the nanopores of an ordered silica m atrix. W u J,G ross A F,Tolbert S H. Journal of Physical Chemistry B . 1999
[4]  
Optical em ission of con jugated polym ers adsorbed to nanoporous alum ina. Q i D,Kwong K,Radem acher K,et al. Nano Letters . 2003
[5]  
Study of fluorescence spectra of C102∶RH6G in anod ic porous alum ina. W ang Fe ife i,L i Q ingshan,W ang Gu izhen,et al. Chin.J.Lum in.(发光学报) . 2003
[6]  
Strong b lue em ission from anod ic alum ina m embranes w ith ordered nanopore array. Huang G S,W u X L,M e i Y F,et al. Journal of Applied Physiology . 2003
[7]  
Preparation of PPV nanotubes and nanorods and carbon ized products derived therefrom. K im K,Jin J. Nano Letters . 2001
[8]  
Control of energy transfer in oriented con jugated polym er-m esoporous silica composites. Nguyen T Q,W u J,Doan V,et al. Science . 2000