Direct spectroscopic evidence of energy transfer from photo-excited semiconducting polymers to single-walled carbon nanotubes

被引：53

作者：

Nish, Adrian ^{[1
]}

Hwang, Jeong-Yuan ^{[2
,3
]}

Doig, James ^{[1
]}

Nicholas, Robin J. ^{[1
]}

机构：

[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

[2] Natl Taiwan Univ, Dept Mat Sci Engn, Taipei, Taiwan

[3] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei, Taiwan

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1088/0957-4484/19/9/095603

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Single-walled carbon nanotubes have been efficiently dispersed in an organic solvent using the semiconducting polymers MEHPPV and PFO. It has been found that energy is transferred to the carbon nanotubes when the polymer is photo-excited across its minimum energy gap. This is shown using photoluminescence excitation mapping in the range of both the polymer's and the nanotube's optical absorbance. Possible mechanisms for the energy transfer are discussed.

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页数：6

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