Choi, H.W. and Dawson, M.D. (2005) Improved current spreading in 370nm AlGaN microring light emitting diodes. Applied Physics Letters, 86 (053504). ISSN 0003-6951Full text not available in this repository. (Request a copy from the Strathclyde author)
The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode based on a microring geometry is presented. By structuring the light emission area into an interconnected array of microscale rings, current spreading in the n-type cladding layers is improved. A reduction of differential series resistance is observed, and the device saturates at a higher current as the carriers are injected efficiently and uniformly across the junction areas. As a result, optical output power from the microring light-emitting diode is improved compared to a conventional device of broad area geometry.
|Keywords:||photonics, optics, diodes, geometry, applied physics, Optics. Light, Physics and Astronomy (miscellaneous)|
|Subjects:||Science > Physics > Optics. Light|
|Department:||Faculty of Science > Institute of Photonics|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||31 Jan 2008|
|Last modified:||26 Aug 2016 02:07|