Abstract
Recently it has been shown that aqueous solutions of sodium dodecyl sulfate (SDS) encapsulated and polymer wrapped single-walled carbon nanotubes (SWNTs) fluoresce in the near infrared (NIR)1 in the regime of the E11 van Hove transitions for semiconducting SWNTs. For bundled SWNTs, fluorescence is observed to be quenched along with a shift and broadening of the absorbance spectrum. Here, we study two other commercially available surfactants, BRIJ-97 and Triton-X-100, by analysis of carbon nanotube fluorescence and absorptivity in the NIR. It is found that changing the surfactant alters the corresponding optical properties of the solubilized carbon nanotubes. The NIR absorbance spectra of BRIJ-97 and Triton-X-100 carbon nanotube solutions are also compared with the absorbance spectrum of NaCl destabilized SDS-SWNT solutions. By controlling the amount of NaCl added to an aqueous solution of SDS-SWNTs, the optical absorbance spectrum can be made to match that of BRIJ-97 and Triton-X-100 solutions. Lastly, a correlation is drawn between the amount of shift in the absorbance spectrum and the fluorescence intensity, independent of surfactant used. This shift and decrease in fluorescence intensity may be due to carbon nanotube bundling.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | M. Razeghi, G.J. Brown |
| Pages | 238-248 |
| Number of pages | 11 |
| Volume | 4999 |
| DOIs | |
| Publication status | Published - 2003 |
| Event | Quantum Sensing: Evolution and Revolution from Past to Future - San Jose, CA, United States Duration: Jan 27 2003 → Jan 30 2003 |
Other
| Other | Quantum Sensing: Evolution and Revolution from Past to Future |
|---|---|
| Country | United States |
| City | San Jose, CA |
| Period | 1/27/03 → 1/30/03 |
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Keywords
- BRIJ-97
- Buckytube
- Bundle
- Carbon nanotube
- Fluorescence
- Optical absorption
- Photoluminescence
- SDS
- Sodium dodecyl sulfate
- Surfactant
- Triton-X-100
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Tuning the optical properties of carbon nanotube solutions using amphiphilic self-assembly. / Arnold, Michael S.; Stupp, Samuel I; Hersam, Mark C.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / M. Razeghi; G.J. Brown. Vol. 4999 2003. p. 238-248.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Tuning the optical properties of carbon nanotube solutions using amphiphilic self-assembly
AU - Arnold, Michael S.
AU - Stupp, Samuel I
AU - Hersam, Mark C
PY - 2003
Y1 - 2003
N2 - Recently it has been shown that aqueous solutions of sodium dodecyl sulfate (SDS) encapsulated and polymer wrapped single-walled carbon nanotubes (SWNTs) fluoresce in the near infrared (NIR)1 in the regime of the E11 van Hove transitions for semiconducting SWNTs. For bundled SWNTs, fluorescence is observed to be quenched along with a shift and broadening of the absorbance spectrum. Here, we study two other commercially available surfactants, BRIJ-97 and Triton-X-100, by analysis of carbon nanotube fluorescence and absorptivity in the NIR. It is found that changing the surfactant alters the corresponding optical properties of the solubilized carbon nanotubes. The NIR absorbance spectra of BRIJ-97 and Triton-X-100 carbon nanotube solutions are also compared with the absorbance spectrum of NaCl destabilized SDS-SWNT solutions. By controlling the amount of NaCl added to an aqueous solution of SDS-SWNTs, the optical absorbance spectrum can be made to match that of BRIJ-97 and Triton-X-100 solutions. Lastly, a correlation is drawn between the amount of shift in the absorbance spectrum and the fluorescence intensity, independent of surfactant used. This shift and decrease in fluorescence intensity may be due to carbon nanotube bundling.
AB - Recently it has been shown that aqueous solutions of sodium dodecyl sulfate (SDS) encapsulated and polymer wrapped single-walled carbon nanotubes (SWNTs) fluoresce in the near infrared (NIR)1 in the regime of the E11 van Hove transitions for semiconducting SWNTs. For bundled SWNTs, fluorescence is observed to be quenched along with a shift and broadening of the absorbance spectrum. Here, we study two other commercially available surfactants, BRIJ-97 and Triton-X-100, by analysis of carbon nanotube fluorescence and absorptivity in the NIR. It is found that changing the surfactant alters the corresponding optical properties of the solubilized carbon nanotubes. The NIR absorbance spectra of BRIJ-97 and Triton-X-100 carbon nanotube solutions are also compared with the absorbance spectrum of NaCl destabilized SDS-SWNT solutions. By controlling the amount of NaCl added to an aqueous solution of SDS-SWNTs, the optical absorbance spectrum can be made to match that of BRIJ-97 and Triton-X-100 solutions. Lastly, a correlation is drawn between the amount of shift in the absorbance spectrum and the fluorescence intensity, independent of surfactant used. This shift and decrease in fluorescence intensity may be due to carbon nanotube bundling.
KW - BRIJ-97
KW - Buckytube
KW - Bundle
KW - Carbon nanotube
KW - Fluorescence
KW - Optical absorption
KW - Photoluminescence
KW - SDS
KW - Sodium dodecyl sulfate
KW - Surfactant
KW - Triton-X-100
UR - http://www.scopus.com/inward/record.url?scp=0141790169&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141790169&partnerID=8YFLogxK
U2 - 10.1117/12.475398
DO - 10.1117/12.475398
M3 - Conference contribution
VL - 4999
SP - 238
EP - 248
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Razeghi, M.
A2 - Brown, G.J.
ER -