Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface
We report the observation of an ultrafast (∼ 430 fs) charge transfer process at the interface between a single-walled carbon nanotube (SWNT) wrapped by a semi-conducting polymer, poly(3-hexylthiophene) (P3HT), creating free polarons on both materials. The addition of excess P3HT as a surrounding net...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2011
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| _version_ | 1797062013467230208 |
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| author | Stranks, S Weisspfennig, C Parkinson, P Johnston, M Herz, L Nicholas, R |
| author_facet | Stranks, S Weisspfennig, C Parkinson, P Johnston, M Herz, L Nicholas, R |
| author_sort | Stranks, S |
| collection | OXFORD |
| description | We report the observation of an ultrafast (∼ 430 fs) charge transfer process at the interface between a single-walled carbon nanotube (SWNT) wrapped by a semi-conducting polymer, poly(3-hexylthiophene) (P3HT), creating free polarons on both materials. The addition of excess P3HT as a surrounding network allows these free polarons to be long-lived at room temperature. Our results suggest that SWNT-P3HT blends incorporating only 1% fractions of SWNTs can achieve a charge separation efficiency comparable to a conventional 60:40 P3HT-fullerene blend, provided small-diameter tubes are embedded in an excess P3HT matrix. © 2011 Materials Research Society. |
| first_indexed | 2024-03-06T20:39:27Z |
| format | Journal article |
| id | oxford-uuid:33c74b54-9d3c-4055-973a-05ef9f9aacb0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:39:27Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:33c74b54-9d3c-4055-973a-05ef9f9aacb02022-03-26T13:22:10ZUltrafast charge separation at a single-walled carbon nanotube - Polymer interfaceJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:33c74b54-9d3c-4055-973a-05ef9f9aacb0EnglishSymplectic Elements at Oxford2011Stranks, SWeisspfennig, CParkinson, PJohnston, MHerz, LNicholas, RWe report the observation of an ultrafast (∼ 430 fs) charge transfer process at the interface between a single-walled carbon nanotube (SWNT) wrapped by a semi-conducting polymer, poly(3-hexylthiophene) (P3HT), creating free polarons on both materials. The addition of excess P3HT as a surrounding network allows these free polarons to be long-lived at room temperature. Our results suggest that SWNT-P3HT blends incorporating only 1% fractions of SWNTs can achieve a charge separation efficiency comparable to a conventional 60:40 P3HT-fullerene blend, provided small-diameter tubes are embedded in an excess P3HT matrix. © 2011 Materials Research Society. |
| spellingShingle | Stranks, S Weisspfennig, C Parkinson, P Johnston, M Herz, L Nicholas, R Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title | Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title_full | Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title_fullStr | Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title_full_unstemmed | Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title_short | Ultrafast charge separation at a single-walled carbon nanotube - Polymer interface |
| title_sort | ultrafast charge separation at a single walled carbon nanotube polymer interface |
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