Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals

K. Bergenek; Ch. Wiesmann; R. Wirth; Liam O'Faolain; N. Linder; K. Streubel; T. F. Krauss

doi:10.1063/1.2963030

Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals

K. Bergenek, Ch. Wiesmann, R. Wirth, Liam O'Faolain, N. Linder, K. Streubel, T. F. Krauss

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate the use of photonic crystals for light extraction from high-brightness thin-film AlGaInP light-emitting diodes with different etch depths, lattice constants, and two types of lattices (hexagonal and Archimedean). Both simulations and experimental results show that the extraction of high order modes with a low effective index n(eff) is most efficient. The highest external quantum efficiency without encapsulation is 19% with an Archimedean A7 lattice with reciprocal lattice constant G=1.5 k(0), which is 47% better than an unstructured reference device. (C) 2008 American Institute of Physics.

Original language	English
Number of pages	3
Journal	Applied Physics Letters
Volume	93
DOIs	https://doi.org/10.1063/1.2963030
Publication status	Published - 28 Jul 2008

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SPONTANEOUS EMISSION

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10.1063/1.2963030

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title = "Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals",

abstract = "We investigate the use of photonic crystals for light extraction from high-brightness thin-film AlGaInP light-emitting diodes with different etch depths, lattice constants, and two types of lattices (hexagonal and Archimedean). Both simulations and experimental results show that the extraction of high order modes with a low effective index n(eff) is most efficient. The highest external quantum efficiency without encapsulation is 19\% with an Archimedean A7 lattice with reciprocal lattice constant G=1.5 k(0), which is 47\% better than an unstructured reference device. (C) 2008 American Institute of Physics.",

keywords = "SPONTANEOUS EMISSION",

author = "K. Bergenek and Ch. Wiesmann and R. Wirth and Liam O'Faolain and N. Linder and K. Streubel and Krauss, \{T. F.\}",

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month = jul,

day = "28",

doi = "10.1063/1.2963030",

language = "English",

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journal = "Applied Physics Letters",

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TY - JOUR

T1 - Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals

AU - Bergenek, K.

AU - Wiesmann, Ch.

AU - Wirth, R.

AU - O'Faolain, Liam

AU - Linder, N.

AU - Streubel, K.

AU - Krauss, T. F.

PY - 2008/7/28

Y1 - 2008/7/28

N2 - We investigate the use of photonic crystals for light extraction from high-brightness thin-film AlGaInP light-emitting diodes with different etch depths, lattice constants, and two types of lattices (hexagonal and Archimedean). Both simulations and experimental results show that the extraction of high order modes with a low effective index n(eff) is most efficient. The highest external quantum efficiency without encapsulation is 19% with an Archimedean A7 lattice with reciprocal lattice constant G=1.5 k(0), which is 47% better than an unstructured reference device. (C) 2008 American Institute of Physics.

AB - We investigate the use of photonic crystals for light extraction from high-brightness thin-film AlGaInP light-emitting diodes with different etch depths, lattice constants, and two types of lattices (hexagonal and Archimedean). Both simulations and experimental results show that the extraction of high order modes with a low effective index n(eff) is most efficient. The highest external quantum efficiency without encapsulation is 19% with an Archimedean A7 lattice with reciprocal lattice constant G=1.5 k(0), which is 47% better than an unstructured reference device. (C) 2008 American Institute of Physics.

KW - SPONTANEOUS EMISSION

UR - https://www.scopus.com/pages/publications/49149093093

U2 - 10.1063/1.2963030

DO - 10.1063/1.2963030

M3 - Article

SN - 0003-6951

VL - 93

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals

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