Light Emission from Nanoscale Si/Si Oxide Materials
Abstract:Most porous Si materials studied have been oxidized in various degrees. The oxidized porous Si comprises of a great quantity of nanoscale Si particles (NSPs) and each of them is covered by a Si oxide layer. The structure and luminescence properties of the NSPs embedded Si oxide and the nanoscale Si/nanoscale SiO2 multilayers are similar to those of the oxidized porous Si. All the three kinds of materials mentioned are called nanoscale Si/Si oxide materials and their photoluminescence and electroluminescence properties especially light emission mechanisms are reviewed in this article. Nanoscale Si/Si oxide materials have been well studied and are believed to be very promising Si based light emitting materials. The very distinct roles of the NSPs and the luminescence centers in Si oxide in the photoluminescence and electroluminescence from the nanoscale Si/Si oxide materials are highlighted.
Document Type: Review Article
Publication date: 2010-03-01
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- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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