DOI: 10.1063/1.2757100. Scanning photovoltage microscopy of potential modulations in carbon nanotubes

Scanning photovoltage microscopy of potential modulations in carbon nanotubes

10.1063/1.2757100

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We use the locally generated photovoltage in carbon nanotubes to image potential modulations produced by defects. The correlation with spatially resolved spectroscopy of the disorder-enhanced Raman band allows us to locate the defects and to determine their effect on band bending. The defects produce local potential maxima, which are consistent with trapped electrons near the tube. An offset photovoltage is generated when the laser populates metastable traps in the oxide. Previously uncharged defects can thus be imaged. To demonstrate the versatility of the technique, we show that tube-tube junction at the base of nanotube loops can be electronically characterized.

Bibliography

Freitag, M., Tsang, J. C., Bol, A., Avouris, P., Yuan, D., & Liu, J. (2007). Scanning photovoltage microscopy of potential modulations in carbon nanotubes. Applied Physics Letters, 91(3).

Authors 6

Marcus Freitag (first)
James C. Tsang (additional)
Ageeth Bol (additional)
Phaedon Avouris (additional)
Dongning Yuan (additional)
Jie Liu (additional)

References 20 Referenced 36

{'key': '2023062117491518000_c1', 'first-page': '40', 'volume': '20', 'year': '2007', 'journal-title': 'Phys. World'} / Phys. World (2007)
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Dates

Type	When
Created	18 years, 1 month ago (July 16, 2007, 8:42 p.m.)
Deposited	2 years, 2 months ago (June 23, 2023, 8:09 p.m.)
Indexed	1 month ago (July 30, 2025, 6:49 a.m.)
Issued	18 years, 1 month ago (July 16, 2007)
Published	18 years, 1 month ago (July 16, 2007)
Published Online	18 years, 1 month ago (July 16, 2007)
Published Print	18 years, 1 month ago (July 16, 2007)

Funders 0

None

BibTeX

@article{Freitag_2007, title={Scanning photovoltage microscopy of potential modulations in carbon nanotubes}, volume={91}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.2757100}, DOI={10.1063/1.2757100}, number={3}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Freitag, Marcus and Tsang, James C. and Bol, Ageeth and Avouris, Phaedon and Yuan, Dongning and Liu, Jie}, year={2007}, month=jul }

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