论文信息 - Infrared light-emitting diodes with lateral outcoupling taper for high extraction efficiency

Infrared light-emitting diodes with lateral outcoupling taper for high extraction efficiency

We present a non-resonant light emitting diode with a novel concept of light outcoupling. Light is generated in the center of a radially symmetric structure and propagates between two mirrors of a tapered region where outcoupling occurs. Principles of outcoupling are given using a simple ray tracing model. Different process routes are developed resulting in on-substrate as well as substratless devices. Not yet optimized devices show quantum efficiencies of 12% and 15%, respectively.

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