Cylindrical GaAs quantum wires incorporated within chrysotile asbestos nanotubes: fabrication and polarized optical absorption spectra |
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| Institution: | 1. Chemical Engineering Department, University of Florida, Gainesville, FL 32603, United States;2. College of Engineering, University of California, Davis, Davis, CA 95616, United States;1. Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China;2. Department of Orthopaedics, Peking Union Medical College Hospital, Beijing 100730, China;1. Laboratoire de Nanotechnologies Pharmaceutiques, faculté de pharmacie, Université de Montréal, CP6128, succursale Centre-ville, Montréal, QC, H3C 3J7, Canada;2. Université de Lyon (UCBL), Biologie Tissulaire et Ingénierie Thérapeutique UMR 5305 et Vecteurs Colloïdaux et Transport Tissulaire, Institut des Sciences Pharmaceutiques et Biologiques, 8 avenue Rockefeller, 69373 Lyon, Cedex 08, France |
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| Abstract: | GaAs has been injected into chrysotile asbestos channels. GaAs quantum wires (nanocylinders) with diameters ∼ 6 nm have been observed in the channels by means of transmittance electron microscopy. Polarized optical absorption spectra of asb-GaAs (chrysotile asbestos containing GaAs wires) have been studied. A high anisotropy of the absorption has been observed, and intersubband transitions in the visible light region due to a strong quantum size effect have been found. |
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