Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes
We report large electroabsorption susceptibilities in the ultraviolet region for single-walled carbon nanotubes (SWNT) supported on quartz that are approximately 10[superscript 3] larger than the highest values reported to date for any system. The oscillatory behavior is described using a convolutio...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51998 https://orcid.org/0000-0003-2944-808X |
| _version_ | 1826209195680071680 |
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| author | Ham, Moon-Ho Kong, Byung-Seon Kim, Woo-Jae Jung, Hee-Tae Strano, Michael S. |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Ham, Moon-Ho Kong, Byung-Seon Kim, Woo-Jae Jung, Hee-Tae Strano, Michael S. |
| author_sort | Ham, Moon-Ho |
| collection | MIT |
| description | We report large electroabsorption susceptibilities in the ultraviolet region for single-walled carbon nanotubes (SWNT) supported on quartz that are approximately 10[superscript 3] larger than the highest values reported to date for any system. The oscillatory behavior is described using a convolution of Airy functions in photon energy ascribing the effect to Franz-Keldysh oscillations. The metallic and semiconducting SWNT composition is varied, and it is shown that the confinement energy correlates with the average band gap for semiconducting SWNT in the film. The large susceptibilities arise from a subpercolated network of metallic SWNT that enhances the local electric field. |
| first_indexed | 2024-09-23T14:19:01Z |
| format | Article |
| id | mit-1721.1/51998 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:19:01Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/519982022-09-29T08:37:44Z Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes Ham, Moon-Ho Kong, Byung-Seon Kim, Woo-Jae Jung, Hee-Tae Strano, Michael S. Massachusetts Institute of Technology. Department of Chemical Engineering Strano, Michael S. Ham, Moon-Ho Kong, Byung-Seon Kim, Woo-Jae Strano, Michael S. We report large electroabsorption susceptibilities in the ultraviolet region for single-walled carbon nanotubes (SWNT) supported on quartz that are approximately 10[superscript 3] larger than the highest values reported to date for any system. The oscillatory behavior is described using a convolution of Airy functions in photon energy ascribing the effect to Franz-Keldysh oscillations. The metallic and semiconducting SWNT composition is varied, and it is shown that the confinement energy correlates with the average band gap for semiconducting SWNT in the film. The large susceptibilities arise from a subpercolated network of metallic SWNT that enhances the local electric field. 2010-03-03T14:51:56Z 2010-03-03T14:51:56Z 2009-01 2008-05 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51998 Ham, Moon-Ho et al. “Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes.” Physical Review Letters 102.4 (2009): 047402. © 2009 The American Physical Society https://orcid.org/0000-0003-2944-808X en_US http://dx.doi.org/10.1103/PhysRevLett.102.047402 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Ham, Moon-Ho Kong, Byung-Seon Kim, Woo-Jae Jung, Hee-Tae Strano, Michael S. Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title | Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title_full | Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title_fullStr | Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title_full_unstemmed | Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title_short | Unusually Large Franz-Keldysh Oscillations at Ultraviolet Wavelengths in Single-Walled Carbon Nanotubes |
| title_sort | unusually large franz keldysh oscillations at ultraviolet wavelengths in single walled carbon nanotubes |
| url | http://hdl.handle.net/1721.1/51998 https://orcid.org/0000-0003-2944-808X |
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