H. Fonseka, P. Caroff, Y. Guo, F. Wang, J. Wong-Leung, H. Tan, C. Jagadish
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InP-based radial heterostructures grown on [100] nanowires
InP-InxGa(1-x)As-InP quantum well tube (QWT) structures are grown on InP nanowires that are [100] oriented. The In mole fraction, x is varied between 0 and 1. The QWTs grown on the facets of the [100] nanowires that have {100} and {011} side facets forming an octagonal cross-section, are found to be highly non-uniform. Bright emission is observed at room temperature from these QWTs. Band-gap tunability in the near to mid-infrared region is achieved by controlling the thickness and composition of the quantum well.
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