Spatially Resolved Cathodoluminescence in the Vicinity of Defects in the High-Efficiency InGaN/GaN Blue Light Emitting Diodes

In addition to the standard 447 nm blue emission from the InGaN/GaN multiple quantum wells, a high-energy shoulder is clearly observed in cathodoluminescence spectra of the high-efficiency InGaN/GaN blue light emitting diodes grown on sapphire substrates by metalorganic chemical vapor deposition. Mo...

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Bibliographic Details
Main Authors: Manh-Ha Doan, Jaejin Lee
Format: Article
Language:English
Published: Hindawi Limited 2014-01-01
Series:Advances in Condensed Matter Physics
Online Access:http://dx.doi.org/10.1155/2014/671210