| Autor: |
Jong Hyub Baek, Hyun Ho Park, Gye Mo Yang, Jun Seok Ha, Seong Ran Jeon, Hyung Jo Park, Young Ho Song, Seung Hwan Kim, Sang Hern Lee |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Journal of Nanoscience and Nanotechnology. 13:4325-4329 |
| ISSN: |
1533-4880 |
| DOI: |
10.1166/jnn.2013.7475 |
| Popis: |
The periodic beveled micro-rods (BMRs) were constructed on the emission surface of GaN-based vertical light-emitting diodes (VLEDs) in order to improve the light-extraction efficiency. It was experimentally demonstrated that the light output power of the VLEDs with a periodic BMR (BMR-VLED) were enhanced about 15.6%, compared with that of the VLEDs with randomly textured surface (RT-VLED) at an injection current of 350 mA. This finding indicates that the photons emitted from the active layer were well out-coupled at an n-GaN surface having a periodic BMR structure, resulting in an increase in the probability of escaping from the VLED structure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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