Strain-induced Self-rolling III-V Tubular nanostructures: Formation Process and Photonic Applications
نویسندگان
چکیده
We demonstrate the rolling process of strained III-V compound semiconductor films upon epitaxial liftoff from the substrate. The formed tubular structures with diameters in the micron range, embedded with quantum confined GaAs light emitters in the ultra-thin tube walls (< 100 nm) show dramatic enhancement in intensity and reduction of bandgap as a function of tube curvature. Emission characteristics and implications are analyzed.
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تاریخ انتشار 2009