1 December 2017 Surface photonic crystal structures for LED emission modification
Author Affiliations +
Proceedings Volume 10603, Photonics, Devices, and Systems VII; 1060319 (2017) https://doi.org/10.1117/12.2293527
Event: Photonics Prague 2017, 2017, Prague, Czech Republic
Application of photonic crystal structures (PhC) can be attractive for overall and local enhancement of light from patterned areas of the light emitting diode (LED) surface. We used interference and near-field scanning optical microscope lithography for patterning of the surface of GaAs/AlGaAs based LEDs emitted at 840 nm. Also new approach with patterned polydimethylsiloxane (PDMS) membrane applied directly on the surface of red emitting LED was investigated. The overall emission properties of prepared LED with patterned structure show enhanced light extraction efficiency, what was documented from near- and far-field measurements.
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Frantisek Uherek, Frantisek Uherek, Jaroslava Škriniarová, Jaroslava Škriniarová, Anton Kuzma, Anton Kuzma, Ľuboš Šušlik, Ľuboš Šušlik, Ivana Lettrichova, Ivana Lettrichova, Dong Wang, Dong Wang, Peter Schaaf, Peter Schaaf, } "Surface photonic crystal structures for LED emission modification", Proc. SPIE 10603, Photonics, Devices, and Systems VII, 1060319 (1 December 2017); doi: 10.1117/12.2293527; https://doi.org/10.1117/12.2293527

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