Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes

Michael S. Arnold, Song Lan, Samantha C. Cruz, Jay E. Sharping, Samuel I Stupp, Prem Kumar, Mark C Hersam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes (SWNTs) are studied. Optical transitions between van Hove singularities are red shifted in solutions of DNA wrapped SWNTs compared with transitions in solutions of sodium dodecyl sulfate (SDS) encapsulated SWNTs. This red shift may be due to changes in the local surrounding dielectric constant and corresponding changes in charge screening. Transient photobleaching at the E11 transition of semiconducting SWNTs is observed in both solutions of SDS encapsulated SWNTs and DNA wrapped SWNTs in response to optical excitation at corresponding E 22 transitions, and the saturation of photobleaching at high excitation intensities greater than 500 W cm-2 is studied. It is found that the photobleaching intensity does not saturate as significantly in solutions of DNA wrapped SWNTs as in solutions of SDS isolated SWNTs. Lastly, using degenerate, delayed pump-probe characterization, the temporal relaxation of excited charge carriers is investigated. Measured decays are characterized by both fast and slow processes. The slow decay time constant across the band gap of semiconducting SWNTs is fit to 120 ps for SDS encapsulated SWNTs and 73 ps for DNA wrapped SWNTs.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsM. Razeghi, G.J. Brown
Pages376-386
Number of pages11
Volume5359
DOIs
Publication statusPublished - 2004
EventQuantum Sensing and Nanophotonic Devices - San Jose, CA, United States
Duration: Jan 25 2004Jan 29 2004

Other

OtherQuantum Sensing and Nanophotonic Devices
CountryUnited States
CitySan Jose, CA
Period1/25/041/29/04

Fingerprint

Photobleaching
Single-walled carbon nanotubes (SWCN)
Light absorption
optical absorption
Surface active agents
DNA
deoxyribonucleic acid
carbon nanotubes
surfactants
Sodium dodecyl sulfate
sodium sulfates
Optical transitions
Photoexcitation
decay
Charge carriers
trucks
optical transition
red shift
time constant
excitation

Keywords

  • Absorption
  • Buckytube
  • Carbon nanotube
  • Deoxyribose nucleic acid
  • DNA
  • Isolated
  • Optical
  • Photobleaching
  • SDS
  • Sodium dodecyl sulfate
  • Surfactant
  • SWNT

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Arnold, M. S., Lan, S., Cruz, S. C., Sharping, J. E., Stupp, S. I., Kumar, P., & Hersam, M. C. (2004). Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes. In M. Razeghi, & G. J. Brown (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5359, pp. 376-386) https://doi.org/10.1117/12.521192

Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes. / Arnold, Michael S.; Lan, Song; Cruz, Samantha C.; Sharping, Jay E.; Stupp, Samuel I; Kumar, Prem; Hersam, Mark C.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / M. Razeghi; G.J. Brown. Vol. 5359 2004. p. 376-386.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Arnold, MS, Lan, S, Cruz, SC, Sharping, JE, Stupp, SI, Kumar, P & Hersam, MC 2004, Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes. in M Razeghi & GJ Brown (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5359, pp. 376-386, Quantum Sensing and Nanophotonic Devices, San Jose, CA, United States, 1/25/04. https://doi.org/10.1117/12.521192
Arnold MS, Lan S, Cruz SC, Sharping JE, Stupp SI, Kumar P et al. Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes. In Razeghi M, Brown GJ, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5359. 2004. p. 376-386 https://doi.org/10.1117/12.521192
Arnold, Michael S. ; Lan, Song ; Cruz, Samantha C. ; Sharping, Jay E. ; Stupp, Samuel I ; Kumar, Prem ; Hersam, Mark C. / Optical absorption and transient photobleaching in solutions of surfactant encapsulated and DNA wrapped single-walled carbon nanotubes. Proceedings of SPIE - The International Society for Optical Engineering. editor / M. Razeghi ; G.J. Brown. Vol. 5359 2004. pp. 376-386
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