| InGaN light-emitting diodes with oblique sidewall facets formed by selective growth on SiO₂ patterned GaN film. | |
| | |
MedLine Citation:
|
PMID: 21165089 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
In this study, GaN-based light-emitting diodes (LEDs) with naturally formed oblique sidewall facets (OSFs) were fabricated through a selective regrowth process. The SiO₂ mask layer was patterned on a heavily doped n-GaN template layer rather than on a sapphire substrate. As a result, the periphery of the LED included several OSFs around the regrown GaN mesa. While processing the device, dry etching was unnecessary for exposing the n-GaN underlying layer in order to form the n-type Ohmic contacts. This could be attributed to the fact that the n-GaN template layer with an electron concentration of around 8 × 10¹⁸/cm³ was exposed after the removal of the SiO₂ mask layer. With an injection current of 20 mA, GaN-based LEDs with OSFs exhibited a 21% enhancement in light output compared with those that have vertical sidewall facets. The enhancement is attributed to the fact that photons extracted from OSFs can reduce internal absorption loss. |
| | |
Authors:
|
Jinn-Kong Sheu; Kuo-Hua Chang; Shang-Ju Tu; Ming-Lun Lee; Chih-Ciao Yang; Che-Kang Hsu; Wei-Chih Lai |
Related Documents
:
|
20125939 - Instrument for measuring angular intensity distributions of light sources within a few ... 8479709 - The effect of simulated cataract on the glaucomatous visual field. 19373319 - Method for broadband spectroscopy of light transport through opaque scattering media. 7302239 - Ultrasonic characterization of abdominal tissues via digital analysis of backscattered ... 19187649 - Effects of prior freezing or drying on the swelling behaviour of the bovine cornea. 3839759 - What do glaucomatous visual fields really look like in fine-grid computerized profile p... 10462799 - The role of spectral and periodicity cues in auditory stream segregation, measured usin... 22105399 - Response of the worldwide side impact dummy (worldsid) to localized constant-speed impa... 16664539 - The senescence of detached leaves of tropaeolum. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Optics express Volume: 18 Suppl 4 ISSN: 1094-4087 ISO Abbreviation: Opt Express Publication Date: 2010 Nov |
Date Detail:
|
Created Date: 2010-12-17 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101137103 Medline TA: Opt Express Country: United States |
Other Details:
|
Languages: eng Pagination: A562-7 Citation Subset: IM |
Affiliation:
|
Institute of Electro-Optical Science and Engineering, Advanced Optoelectronic Technology Center & Center for Micro/Nano Science and Technology, National Cheng Kung University, Tainan City 70101, Taiwan. jksheu@mail.ncku.edu.tw |
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: Enhancing the conversion efficiency of red emission by spin-coating CdSe quantum dots on the green n...
Next Document: Wire textured, multi-crystalline Si solar cells created using self-assembled masks.