| The fabrication of a patterned ZnO nanorod array for high brightness LEDs. | |
| | |
MedLine Citation:
|
PMID: 20689168 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
In this study, a patterned ZnO nanorod array was formed on the ITO layer of GaN-based light-emitting diodes (LEDs), to increase the light extraction efficiency of the LED. The bi-layer imprinted resin pattern was used for selective growth of the ZnO nanorod array on the ITO layer. Compared to conventional LEDs grown on patterned sapphire substrate (PSS), the deposition of the blanket ZnO layer on the ITO layer increased the light extraction efficiency of the LED by about 10%. Further growth of the ZnO nanorod layer on the blanket ZnO layer increased the light extraction efficiency of the LED by about 23%. In the case that a patterned ZnO nanorod layer was formed on a blanket ZnO layer, the light extraction efficiency increased by about 34%. These enhancements of the device were caused by modulation of the refractive-index in ZnO layers and the surface roughening effects because of the unique design of the pattern, which was nanostructure-in-nanopattern, resulting in the formation of many escape cones on the LED surface. |
| | |
Authors:
|
Hyoungwon Park; Kyeong-Jae Byeon; Ki-Yeon Yang; Joong-Yeon Cho; Heon Lee |
Related Documents
:
|
3796038 - Displaced amacrine cells in the retina of a rabbit: analysis of a bivariate spatial poi... 20183118 - Local vs regional effects of substratum on early colonization stages of sessile assembl... 20563218 - High-speed pattern projection for three-dimensional shape measurement using laser speck... 3940058 - Selective internal operations in the recognition of locally and globally point-inverted... 11607178 - Self-similarity of the "1/f noise" called music. 17072608 - Visual motion combined with base of support width reveals variable field dependency in ... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-08-06 |
Journal Detail:
|
Title: Nanotechnology Volume: 21 ISSN: 1361-6528 ISO Abbreviation: Nanotechnology Publication Date: 2010 Sep |
Date Detail:
|
Created Date: 2010-08-09 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101241272 Medline TA: Nanotechnology Country: England |
Other Details:
|
Languages: eng Pagination: 355304 Citation Subset: IM |
Affiliation:
|
Department of Materials Science and Engineering, Korea University, Seongbuk-Ku, Seoul, Korea. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A self-assembled multimodal complex for combined pre- and intraoperative imaging of the sentinel lym...
Next Document: In situ real-time monitoring of changes in the surface roughness during nonadiabatic optical near-fi...