Emission characteristics of photonic crystal light-emitting diodes

Ali Z. Khokhar, Keith Parsons, Graham Hubbard, Ian M. Watson, Faiz Rahman, Douglas S MacIntyre, Chang Xiong, David Massoubre, Zheng Gong, Erdan Gu, Nigel P. Johnson, Richard M. De La Rue, Martin D. Dawson, Steve J. Abbott, Martin D.B. Charlton, Martin Tillin

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10 Citations (Scopus)

Abstract

Experimentally measured optical properties of photonic crystal LEDs are reported here. Photonic crystal and photonic quasi-crystal structures were fabricated on GaN epilayer LED wafer material using both direct-write electron beam lithography and nanoimprint lithography. Some of these structures were processed to make finished LEDs. Both electroluminescence and photoluminescence measurements were performed on these structures. Devices were characterized for their current-voltage characteristics, emission spectra, far-field emission pattern, and angular emission pattern. These results are useful for fabricating photonic crystal LEDs and assessing their operational properties.
Original languageEnglish
Pages (from-to)3233-3239
Number of pages7
JournalApplied Optics
Volume50
Issue number19
DOIs
Publication statusPublished - 24 Jun 2011

Keywords

  • optical devices
  • photonic crystals
  • nanostructure fabrication
  • nanophotonics

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    Khokhar, A. Z., Parsons, K., Hubbard, G., Watson, I. M., Rahman, F., MacIntyre, D. S., Xiong, C., Massoubre, D., Gong, Z., Gu, E., Johnson, N. P., De La Rue, R. M., Dawson, M. D., Abbott, S. J., Charlton, M. D. B., & Tillin, M. (2011). Emission characteristics of photonic crystal light-emitting diodes. Applied Optics, 50(19), 3233-3239. https://doi.org/10.1364/AO.50.003233