Optoelectronic Sensitization of Carbon Nanotubes by CdTe Nanocrystals
| Autor: | Itai Carmeli, Jörg P. Kotthaus, Alexander W. Holleitner, Bernd Zebli, H. A. Vieyra, Achim Hartschuh |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Condensed Matter - Materials Science
Photon Materials science Condensed Matter - Mesoscale and Nanoscale Physics business.industry Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences chemistry.chemical_element Carbon nanotube Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Optical properties of carbon nanotubes Molecular recognition Nanocrystal chemistry law Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Optoelectronics business Absorption (electromagnetic radiation) Carbon Excitation |
| Popis: | We investigate the photoconductance of single-walled carbon nanotube-nanocrystal hybrids. The nanocrystals are bound to the nanotubes via molecular recognition. We find that the photoconductance of the hybrids can be adjusted by the absorption characteristics of the nanocrystals. In addition, the photoconductance of the hybrids surprisingly exhibits a slow time constant of about 1 ms after excitation of the nanocrystals. The data are consistent with a bolometrically induced current increase in the nanotubes caused by photon absorption in the nanocrystals. |
| Databáze: | OpenAIRE |
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