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Species-dependent energy transfer of surfactant-dispersed semiconducting single-walled carbon nanotubes.

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Species-dependent energy transfer of surfactant-dispersed semiconducting single-walled carbon nanotubes.

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Title: Species-dependent energy transfer of surfactant-dispersed semiconducting single-walled carbon nanotubes.
Author: Chen, Fuming.; Ye, Jun.; Teo, Ming Yong.; Zhao, Yang.; Tan, Lay Poh.; Chen, Yuan.; Chan-Park, Mary B.; Li, Lain-Jong.
Copyright year: 2009
Abstract: 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.
Subject: DRNTU::Engineering::Materials::Nanostructured materials.
Type: Journal Article
Series/ Journal Title: Journal of physical chemistry C
School: School of Materials Science and Engineering
Rights: © 2009 American Chemical Society

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