Wen, Xiaoming; Davis, Jeffrey A.; Van Dao, Lap; Hannaford, Peter; Coleman, Victoria A; Jagadish, C.; Koike, K.; Sasa, S.; Inoue, M.; Yano, M.; Tan, Hark Hoe
The authors investigate the effect of oxygen implantation and rapid thermal annealing in ZnO∕ZnMgOmultiple quantum wells using photoluminescence. A blueshift in the photoluminescence is observed in the implanted samples. For a low implantation dose, a significant increase of activation energy and a slight increase of the photoluminescence efficiency are observed. This is attributed to the suppression of the point defect complexes and transformation between defect structures by implantation and...[Show more]
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