| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Electric-Field Switching of Bright and Dark Excitons in Semiconductor Crossed Nanowires |
| LI Xiao-Jing**, K. S. Chan2 |
1College of Physics and Energy, Fujian Normal University, Fuzhou 350007
2Department of Physics and Materials Science, City University of Hong Kong, Hong Kong
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| Cite this article: |
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LI Xiao-Jing, K. S. Chan 2013 Chin. Phys. Lett. 30 016801 |
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Abstract We investigate theoretically the exciton states in semiconductor crossed nanowires (CNWs) and it is found that the energy spectrum and electro-PL spectrum of the exciton in the CNWs can be tuned by the size of the nanowires using electric fields. An interesting bright-to-dark exciton transition can be found and it significantly affects the photoluminescence spectrum by the electric fields, which can be used to design new types of optoelectronic devices.
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Received: 01 August 2012
Published: 04 March 2013
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| PACS: |
68.65.Hb
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(Quantum dots (patterned in quantum wells))
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71.35.Ji
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(Excitons in magnetic fields; magnetoexcitons)
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78.20.Ls
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(Magneto-optical effects)
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