Evidences of VO, VZn, and Oi defects as the green luminescence origins in ZnO
J Lv, C Li - Applied Physics Letters, 2013 - pubs.aip.org
In this Letter, by employing a combination of typical treatments and sensitive defect
characterization, we discriminate between the roles of different kinds of intrinsic defects in
ZnO. Thereby, we offer convincing experimental evidence that the green luminescence can
originate from VO, V Zn, and O i-related defects, corresponding to the 2.48 eV, 2.35 eV, and
2.26 eV emissions, respectively. The green emission peaks are found to be dependent on
the relative concentration of these defect centers.
characterization, we discriminate between the roles of different kinds of intrinsic defects in
ZnO. Thereby, we offer convincing experimental evidence that the green luminescence can
originate from VO, V Zn, and O i-related defects, corresponding to the 2.48 eV, 2.35 eV, and
2.26 eV emissions, respectively. The green emission peaks are found to be dependent on
the relative concentration of these defect centers.
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