Light modulation of electronic transitions in semiconducting single wall carbon nanotubes

被引：29
|
作者：
Khairutdinov, RF [1 ]
Itkis, ME
Haddon, RC
机构：
[1] Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK 99775 USA
[2] Univ Alaska Fairbanks, Ctr Nanosensor Technol, Fairbanks, AK 99775 USA
[3] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
来源：
NANO LETTERS | 2004年 / 4卷 / 08期
关键词：
D O I：
10.1021/nl049538j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
UV illumination of semiconducting single wall carbon nanotubes (SWNTs) results in a substantial increase of the intensity of the first interband transition (S-11) followed by dark or IR light induced restoration of the initial intensity. The intensity of the S11 transition could also be modulated by light-induced reversible conversion of spiropyran molecules attached to SWNTs from the spiro conformation to its merocyanine form. Both surface-located monomeric and end-located aggregated merocyanines were found in UV illuminated spiropyran-SWNT supramolecular conjugates.
引用
收藏
页码：1529 / 1533
页数：5
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