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Is the Intrinsic Thermoelectric Power of Carbon Nanotubes Positive?
Abstract
The thermoelectric power (TEP) of single-walled carbon nanotubes (SWNTs) is extremely sensitive to gas exposure history. Samples exposed to air or oxygen have an always positive TEP, suggestive of holelike carriers. However, at fixed temperature the TEP crosses zero and becomes progressively more negative as the SWNTs are stripped of oxygen. The time constant for oxygen adsorption/desorption is strongly temperature dependent and ranges from seconds to many days, leading to apparently "variable" TEP for a given sample at a given temperature. The saturated TEP can be accounted for within a model of strong oxygen doping of the semiconducting nanotubes.
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Citations
Cited by
Thermal Transport Measurements of Individual Multiwalled Nanotubes
Kim, P., Shi, L., Majumdar, A., & McEuen, P. L. (2001) · Physical Review Letters · doi:10.1103/physrevlett.87.215502 · Cited by 3,378
Thermal Conductance and Thermopower of an Individual Single-Wall Carbon Nanotube
Yu, C., Shi, L., Yao, Z., Li, D., & Majumdar, A. (2005) · Nano Letters · doi:10.1021/nl051044e · Cited by 871
Shi, L., Li, D., Yu, C., Jang, W., Kim, D., Yao, Z., Kim, P., & Majumdar, A. (2003) · Journal of Heat Transfer · doi:10.1115/1.1597619 · Cited by 733
Controlling doping and carrier injection in carbon nanotube transistors
Derycke, V., Martel, R., Appenzeller, J., & Avouris, P. (2002) · Applied Physics Letters · doi:10.1063/1.1467702 · Cited by 667
Turning Carbon Nanotubes from Exceptional Heat Conductors into Insulators
Prasher, R. S., Hu, X. J., Chalopin, Y., Mingo, N., Lofgreen, K., Volz, S., Cleri, F., & Keblinski, P. (2009) · Physical Review Letters · doi:10.1103/physrevlett.102.105901 · Cited by 332
Metadata
- Authors
- Bradley, K., Jhi, S.-H., Collins, P. G., Hone, J., Cohen, M. L., Louie, S. G., & Zettl, A.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2000-11-13
- Volume
- 85
- Issue
- 20
- Pages
- 4361-4364
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2034138607
- Cited by
- 253
- References
- 0
- FWCI
- 10.76
- Type
- journal article
- Language
- en
- Open access
- closed
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- Bradley, K., Jhi, S.-H., Collins, P. G., Hone, J., Cohen, M. L., Louie, S. G., & Zettl, A. (2000). Is the Intrinsic Thermoelectric Power of Carbon Nanotubes Positive? Physical Review Letters. https://doi.org/10.1103/physrevlett.85.4361
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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