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2006 | 110 | 2 | 103-110
Article title

Microscopic Luminescence Properties of ZnO and ZnO Based Heterostructures

Content
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EN
Abstracts
EN
The optical properties of excitonic recombinations in ZnO are investigated by spatially and spectrally resolved cathodoluminescence measurements. The relevance of cathodoluminescence microscopy as a spatially resolved luminescence technique as a simple but very powerful characterization method is stressed out in discussions of a wide variety of appropriate examples. A thorough discussion of the various features of the cathodoluminescence of an undoped ZnO bulk crystal, epitaxially grown ZnO and MgZnO/ZnO/MgZnO quantum well structure is given. Particular attention is devoted to the impact of the internal electrical fields, e.g. the Franz-Keldysh effect in ZnO. Furthermore, this study focuses on the spectral variations as a function of depth to the interface in ZnO homo- and heterostructures. Our aim is to establish the nature of the optical transitions influenced by internal fields, defects and impurity doping in ZnO/GaN and ZnO/ZnO interfaces. This review covers also the vertical transport, diffusion and capture of carriers in a MgZnO/ZnO/MgZnO quantum well structure.
Keywords
Year
Volume
110
Issue
2
Pages
103-110
Physical description
Dates
published
2006-08
received
2006-06-17
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv110n201kz
Identifiers
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