We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A resonant-cavity blue-violet light-emitting diode with conductive nanoporous distributed Bragg reflector.
- Authors
Zhang, Cheng; Xiong, Kanglin; Yuan, Ge; Han, Jung
- Abstract
While III-Nitride micro-cavity light emitters are of great interest, electrically conductive and optically highly reflective distributed Bragg mirrors remain a major challenge. In this paper, we demonstrate a blue-violet resonant-cavity light-emitting diode (RC-LED) with a novel conductive nanoporous (NP)-GaN/GaN DBR as the bottom mirror. The NP-DBR is converted from an all-GaN epitaxial structure with modulated doping profile, and formed by using a conductivity-selective anodic electro-chemical etching process. The NP-GaN material has a tunable index of refraction and maintains its electrical conductivity. The benefits of such NP-DBR RC-LED include a more efficient quasi-vertical current injection scheme benefited from the conductive NP-DBR, and a manufacturable fabrication process, which makes NP-DBR a unique opportunity for the commercialization of GaN-based vertical-cavity surface emitters.
- Subjects
LIGHT emitting diodes; BRAGG gratings; LIGHTING reflectors; PHOTOELECTROCHEMICAL etching; REFRACTION (Optics); ELECTRIC conductivity
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2017, Vol 214, Issue 8, pn/a
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.201600866