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High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices.

Publication ,  Journal Article
Liu, K; Hong, X; Zhou, Q; Jin, C; Li, J; Zhou, W; Liu, J; Wang, E; Zettl, A; Wang, F
Published in: Nature nanotechnology
December 2013

Single-walled carbon nanotubes are uniquely identified by a pair of chirality indices (n,m), which dictate the physical structures and electronic properties of each species. Carbon nanotube research is currently facing two outstanding challenges: achieving chirality-controlled growth and understanding chirality-dependent device physics. Addressing these challenges requires, respectively, high-throughput determination of the nanotube chirality distribution on growth substrates and in situ characterization of the nanotube electronic structure in operating devices. Direct optical imaging and spectroscopy techniques are well suited for both goals, but their implementation at the single nanotube level has remained a challenge due to the small nanotube signal and unavoidable environment background. Here, we report high-throughput real-time optical imaging and broadband in situ spectroscopy of individual carbon nanotubes on various substrates and in field-effect transistor devices using polarization-based microscopy combined with supercontinuum laser illumination. Our technique enables the complete chirality profiling of hundreds of individual carbon nanotubes, both semiconducting and metallic, on a growth substrate. In devices, we observe that high-order nanotube optical resonances are dramatically broadened by electrostatic doping, an unexpected behaviour that points to strong interband electron-electron scattering processes that could dominate ultrafast dynamics of excited states in carbon nanotubes.

Duke Scholars

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Published In

Nature nanotechnology

DOI

EISSN

1748-3395

ISSN

1748-3387

Publication Date

December 2013

Volume

8

Issue

12

Start / End Page

917 / 922

Related Subject Headings

  • Surface Properties
  • Spectrum Analysis
  • Optical Imaging
  • Nanotubes, Carbon
  • Nanotechnology
  • Nanoscience & Nanotechnology
  • Electrons
 

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Liu, K., Hong, X., Zhou, Q., Jin, C., Li, J., Zhou, W., … Wang, F. (2013). High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices. Nature Nanotechnology, 8(12), 917–922. https://doi.org/10.1038/nnano.2013.227
Liu, Kaihui, Xiaoping Hong, Qin Zhou, Chenhao Jin, Jinghua Li, Weiwei Zhou, Jie Liu, Enge Wang, Alex Zettl, and Feng Wang. “High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices.Nature Nanotechnology 8, no. 12 (December 2013): 917–22. https://doi.org/10.1038/nnano.2013.227.
Liu K, Hong X, Zhou Q, Jin C, Li J, Zhou W, et al. High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices. Nature nanotechnology. 2013 Dec;8(12):917–22.
Liu, Kaihui, et al. “High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices.Nature Nanotechnology, vol. 8, no. 12, Dec. 2013, pp. 917–22. Epmc, doi:10.1038/nnano.2013.227.
Liu K, Hong X, Zhou Q, Jin C, Li J, Zhou W, Liu J, Wang E, Zettl A, Wang F. High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices. Nature nanotechnology. 2013 Dec;8(12):917–922.

Published In

Nature nanotechnology

DOI

EISSN

1748-3395

ISSN

1748-3387

Publication Date

December 2013

Volume

8

Issue

12

Start / End Page

917 / 922

Related Subject Headings

  • Surface Properties
  • Spectrum Analysis
  • Optical Imaging
  • Nanotubes, Carbon
  • Nanotechnology
  • Nanoscience & Nanotechnology
  • Electrons