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Two-dimensional electron gas related emissions in ZnMgO/ZnO heterostructures

Chen, Hui; Gu, Shulin; Liu, Jiagao; Ye, Jiandong; Tang, Kun; Zhu, Shunming; Zheng, Youdou


Radiative recombination of two-dimensional electron gas(2DEG), induced by polarization and validated by Hall effect measurements, is investigated in ZnMgO/ZnO heterostructures grown by metal-organic chemical vapor deposition. The Mg composition, the depth profile distribution of Mg, the residual strain in ZnMgO caplayer, and the thickness of caplayer all significantly influence the 2DEG-related transitions in ZnMgO/ZnO heterostructures. Below or above ZnO donor bound exciton, three additional...[Show more]

CollectionsANU Research Publications
Date published: 2011-11-22
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.3662964


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