Emission Pattern Control of GaN-Based Light-Emitting Diodes with ZnO Nanostructures

Title
Emission Pattern Control of GaN-Based Light-Emitting Diodes with ZnO Nanostructures
Author(s)
이영석정용일[정용일]노범영[노범영]박일규
Keywords
ENHANCEMENT; EXTRACTION; SURFACE; OUTPUT; LAYER
Issue Date
201111
Publisher
JAPAN SOC APPLIED PHYSICS
Citation
APPLIED PHYSICS EXPRESS, v.4, no.11
Abstract
We report a controllable way of changing the emission patterns of GaN-based blue light-emitting diodes (LEDs) using ZnO nanorods (NRs) grown hydrothermally. The shape of the ZnO NRs was controlled using seed layers for flower, askance, and vertical structures. The electrical properties of the LEDs with the ZnO NRs did not degrade, while the integrated electroluminescence intensity increased compared with that of the bare LEDs. The emission patterns of the LEDs were broadened as the inclination angle of the ZnO NRs increased. These are attributed to the ZnO NRs acting a role in scattering and guiding the light wave efficiently. (C) 2011 The Japan Society of Applied Physics
URI
http://hdl.handle.net/YU.REPOSITORY/24256http://dx.doi.org/10.1143/APEX.4.112101
ISSN
1882-0778
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공과대학 > 전자공학과 > Articles
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