Photoexcitations in composites of poly(paraphenylene vinylene) and single-walled carbon nanotubes -: art. no. 115202

被引：44

作者：

Wéry, J

Aarab, H

Lefrant, S

Faulques, E

Mulazzi, E

Perego, R

机构：

[1] Inst Mat Jean Rouxel, Lab Phys Cristalline, F-44322 Nantes, France

[2] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[3] Ist Nazl Fis Mat, I-20133 Milan, Italy

[4] Fac Sci Dher Elmahraz, Lab Phys Solide, Fes, Morocco

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.67.115202

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Absorption and photoluminescence (PL) studies have been carried out on pristine standard poly(paraphenylene vinylene) PPV and a series of PPV-single-walled carbon nanotubes (SWNT) composite films. Drastic changes in the PL and absorption spectra are observed with the increase of the SWNT fraction. A model is presented which is able to explain quantitatively the modification of absorption spectra, and particularly the new features in PL spectra as a function of SWNT percentages in the films. We provide evidence for strong electronic interaction between SWNT and the PPV polymer precursor precluding the complete thermal conversion of the polymer matrix.

引用

页数：6

共 26 条

[1] Electronic interaction between photoexcited poly(p-phenylene vinylene) and carbon nanotubes [J].