Publications [#314098] of Henry Everitt

Papers Published
  1. Özgür, Ü; Ni, X; Fu, Y; Morkoç, H; Everitt, HO, Near-field scanning optical microscopy and time-resolved optical characterization of epitaxial lateral overgrown c-plane and a-plane GaN, Applied Physics Letters, vol. 89 no. 26 (December, 2006), pp. 262117-262117 [GetabsServlet], [doi] .

    Epitaxial lateral overgrowth (ELO) was employed for both c-plane and a-plane GaN layers on sapphire, and a more pronounced optical improvement was observed for the a-plane GaN as evidenced by the significantly increased band edge photoluminescence (PL). Room temperature near-field scanning optical microscopy studies explicitly showed enhanced optical quality in the wing regions of the overgrown GaN due to reduced density of dislocations, and for the a-plane ELO GaN sample the wings and the windows were clearly discernible from PL mapping. Time-resolved PL measurements revealed biexponential decays with time constants that were significantly enhanced for the a-plane ELO GaN (tau(1)=0.08 ns, tau(2)=0.25 ns) when compared to the non-ELO control sample but were still much shorter than those for the c-plane ELO GaN (tau(1)=0.26 ns, tau(2)=0.90 ns). (c) 2006 American Institute of Physics.