Abstract
The use of photonic crystals (PCs) for realistic light emitting diodes (LEDs) is discussed, given the constraints of planar semiconductor technology. A viable route for the fabrication of high-efficiency high-brightness electrically injected LEDs is presented. The starting point is a top-emitting microcavity using a single Alox Bragg mirror. The active area is surrounded by two-dimensional PCs, namely arrays of air rods etched through the top layers; injection of the electrons is achieved through the crystals. Design rules for PCs as efficient out-couplers are detailed. The building blocks are assessed experimentally, and we show that promising results are at hand.
Original language | English |
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Pages (from-to) | 79-89 |
Number of pages | 11 |
Journal | Optical and Quantum Electronics |
Volume | 34 |
DOIs | |
Publication status | Published - Jan 2002 |
Externally published | Yes |
Keywords
- High-efficiency light-emitting diodes
- Photonic crystals
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering