Effect of Dielectric Distributed Bragg Reflector on Electrical and Optical Properties of GaN-Based Flip-Chip Light-Emitting Diodes
文献类型：期刊论文
| 作者 | Zhou, S. J.; Xu, H. H.; Liu, M. L.; Liu, X. T.; Zhao, J. ; Li, N.; Liu, S.
|
| 刊名 | Micromachines
 |
| 出版日期 | 2018 |
| 卷号 | 9期号:12页码:9 |
| 关键词 | flip-chip light-emitting diodes distributed Bragg reflector light output power external quantum efficiency quantum-well p-type leds performance wavelength contacts ito/dbr laser power fabrication Science & Technology - Other Topics Instruments & Instrumentation |
| ISSN号 | 2072-666X |
| DOI | 10.3390/mi9120650 |
| 英文摘要 | We demonstrated two types of GaN-based flip-chip light-emitting diodes (FCLEDs) with distributed Bragg reflector (DBR) and without DBR to investigate the effect of dielectric TiO2/SiO2 DBR on optical and electrical characteristics of FCLEDs. The reflector consisting of two single TiO2/SiO2 DBR stacks optimized for different central wavelengths demonstrates a broader reflectance bandwidth and a less dependence of reflectance on the incident angle of light. As a result, the light output power (LOP) of FCLED with DBR shows 25.3% higher than that of FCLED without DBR at 150 mA. However, due to the better heat dissipation of FCLED without DBR, it was found that the light output saturation current shifted from 268 A/cm(2) for FCLED with DBR to 296 A/cm(2) for FCLED without DBR. We found that the use of via-hole-based n-type contacts can spread injection current uniformly over the entire active emitting region. Our study paves the way for application of DBR and via-hole-based n-type contact in high-efficiency FCLEDs. |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/60963]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | Zhou, S. J.,Xu, H. H.,Liu, M. L.,et al. Effect of Dielectric Distributed Bragg Reflector on Electrical and Optical Properties of GaN-Based Flip-Chip Light-Emitting Diodes[J]. Micromachines,2018,9(12):9. |
| APA | Zhou, S. J..,Xu, H. H..,Liu, M. L..,Liu, X. T..,Zhao, J..,...&Liu, S..(2018).Effect of Dielectric Distributed Bragg Reflector on Electrical and Optical Properties of GaN-Based Flip-Chip Light-Emitting Diodes.Micromachines,9(12),9. |
| MLA | Zhou, S. J.,et al."Effect of Dielectric Distributed Bragg Reflector on Electrical and Optical Properties of GaN-Based Flip-Chip Light-Emitting Diodes".Micromachines 9.12(2018):9. |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。