Comparative study on raman and photoluminescence spectra of carbon nanotubes dispersed in different surfactant solutions

被引：0
|
作者：
June Park
Hojung Yang
Maeng-Je Seong
机构：
[1] Chung-Ang University,Department of Physics
来源：
Journal of the Korean Physical Society | 2012年 / 60卷
关键词：
Carbon nanotube; Surfactant; Dispersion; Photoluminescence; Raman;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Raman and photoluminescence (PL) spectra of HiPCO and CoMoCat single-walled carbon nanotubes (SWCNTs) dispersed in 1 wt% aqueous surfactant solutions with five different surfactants were studied. The SWCNT suspensions exhibit almost the same Raman spectra, regardless of the surfactant used, but the PL peak positions of all the observed (7,5), (6,5), (8,3), (9,1), and (6,4) SWCNTs show strong surfactant-dependent shifts as large as ∼19 meV, known as solvatochromic shifts. For SWCNTs dispersed in deoxycholate sodium salts and sodium dodecyl sulfate solutions, the amount of the solvatochromic shift decreases as the excitation laser power is increased.
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页码：1301 / 1304
页数：3
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