Publications [#314127] of Henry Everitt

Papers Published
  1. Glinka, YD; Shahbazyan, TV; Everitt, HO; Roberts, J; Rajagopal, P; Cook, J; Piner, E; Linthicum, K, Effect of the surface states on photoluminescence from surface GaN/Al0.2Ga0.8N quantum wells, Epl (Europhysics Letters), vol. 87 no. 4 (August, 2009), pp. -- [Gateway.cgi], [doi] .

    We report on photoluminescence (PL) measurements at 85K for GaN/Al0.2Ga0.8N surface quantum wells (SQWs) with a width in the range of 1.51-2.9 nm. The PL spectra show a redshift with decreasing SQW width, in contrast to the blueshift normally observed for conventional GaN QWs of the same width. The effect is attributed to a strong coupling of SQW confined exciton states with surface acceptors. The PL hence originates from the recombination of surface-acceptor-bound (A(s)(0)X(A)) excitons. Two types of acceptors were identified. Copyright (C) EPLA, 2009