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所属单位：航天学院

发表刊物：MATERIALS LETTERS

关键字：ZnO Defects PL Nanocrystalline materials

摘要：ZnO defect luminescence is a fascinating but still highly controversial issue. Herein, the role of interstitial oxygen played on the photoluminescence (PL) property of ZnO nanostructures is investigated through oxygen plasma exposure and low temperature O-2 annealing. In contrast to previous reports, no interstitial oxygen related deep level emission was observed in PL spectra from room temperature (RT) to 7 K after oxygen-rich treatments, except apparent suppression of the exciton emission due to the upward band bending effect. This work illustrates that the isolated interstitial oxygen seems not to cause the widely reported yellow/orange emission regardless of the ZnO growth method. (C) 2018 Elsevier B.V. All rights reserved.

ISSN号：0167-577X

是否译文：否

发表时间：2018-05-01

合写作者：方美华

通讯作者：吕金鹏