Species-Dependent Energy Transfer of Surfactant-Dispersed Semiconducting Single-Walled Carbon Nanotubes

被引：12

作者：

Chen, Fuming ^{[1
]}

Ye, Jun ^{[1
]}

Teo, Ming Yong ^{[1
]}

Zhao, Yang ^{[1
]}

Tan, Lay Poh ^{[1
]}

Chen, Yuan ^{[2
]}

Chan-Park, Mary B. ^{[2
]}

Li, Lain-Jong ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 637459, Singapore

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 46期

基金：

新加坡国家研究基金会;

关键词：

SELECTIVE DISPERSION; OPTICAL-PROPERTIES; ORGANIC-SOLVENTS; PHOTOLUMINESCENCE; POLYMERS; BUNDLES; FLUORESCENCE; COMPOSITES;

D O I：

10.1021/jp9076883

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single-walled carbon nanotubes (SWNTs) are stabilized with sodium dodecyl sulfate (SDS) micelles in aqueous solution. Aggregation among semiconducting SWNTs can be identified by exciton energy transfer (EET) features in photoluminescence excitation (PLE) mapping. Addition of o-dichlorobenzene (ODCB) not only changes the micelle structure but also induces the aggregation among SWNT species, leading to drastic changes in the EET features of the ensemble. Force-field and molecular dynamic simulation confirm that SWNT bundles are energetically favorable at room temperature. Observed EET features in PLE mappings are found to be SWNT species-dependent. Moreover, the rapid bundling process induced by ODCB allows us to obtain SWNT bundles which are potentially useful for optical and optoelectronic applications.

引用

页码：20061 / 20065

页数：5

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