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Proceedings Paper

Surface photonic crystal structures for LED emission modification
Author(s): Frantisek Uherek; Jaroslava Škriniarová; Anton Kuzma; Ľuboš Šušlik; Ivana Lettrichova; Dong Wang; Peter Schaaf
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Paper Abstract

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.

Paper Details

Date Published:
Proc. SPIE PPR100, Photonics Prague 2017, ; doi: 10.1117/12.2293527
Show Author Affiliations
Frantisek Uherek, Slovak Univ. of Technology (Slovakia)
Jaroslava Škriniarová, Slovak Univ. of Technology (Slovakia)
Anton Kuzma, Slovak Univ. of Technology (Slovakia)
Ľuboš Šušlik, Univ. of Žilina (Slovakia)
Ivana Lettrichova, Univ. of Žilina (Slovakia)
Dong Wang, Technische Univ. Ilmenau (Germany)
Peter Schaaf, Technische Univ. Ilmenau (Germany)

Published in SPIE Proceedings Vol. PPR100:
Photonics Prague 2017
Petr Páta; Dagmar Senderáková; Miroslav Miller; Karel Fliegel, Editor(s)

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