Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing

M. Wu, Zheng Gong, A.J.C. Keuhne, Alexander Kanibolotsky, Yujie Chen, I.F. Perepichka, Allan Mackintosh, Erdan Gu, Peter Skabara, Richard Pethrick, Martin Dawson

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We report what we believe to be the first use of organic nanostructures for efficient colour conversion of gallium nitride light emitting diodes (LEDs). The particular nanomaterials, based on star-shaped truxene oligofluorenes, offer an attractive alternative to inorganic colloidal quantum dots in the search for novel and functional 'nanophosphors'. The truxenes have been formed into a composite with photoresist and ink-jet printed onto microstructured gallium nitride LEDs, resulting in a demonstrator hybrid microdisplay technology with pixel size ~32μm. The output power density of the hybrid device was measured to be ~8.4mW/cm2 per pixel at driving current density of 870.8A/cm2 and the efficiency of colour conversion at drive current of 7mA was estimated to be approximately 50%.
LanguageEnglish
Pages16436-16443
Number of pages8
JournalOptics Express
Volume17
Issue number19
DOIs
Publication statusPublished - 31 Aug 2009

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gallium nitrides
inks
printing
light emitting diodes
pixels
photoresists
radiant flux density
quantum dots
current density
color
stars
composite materials

Keywords

  • light-emitting devices
  • ink-jet printing
  • organic nanostructures

Cite this

Wu, M., Gong, Z., Keuhne, A. J. C., Kanibolotsky, A., Chen, Y., Perepichka, I. F., ... Dawson, M. (2009). Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing. Optics Express, 17(19), 16436-16443. https://doi.org/10.1364/OE.17.016436
Wu, M. ; Gong, Zheng ; Keuhne, A.J.C. ; Kanibolotsky, Alexander ; Chen, Yujie ; Perepichka, I.F. ; Mackintosh, Allan ; Gu, Erdan ; Skabara, Peter ; Pethrick, Richard ; Dawson, Martin. / Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing. In: Optics Express. 2009 ; Vol. 17, No. 19. pp. 16436-16443.
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Wu, M, Gong, Z, Keuhne, AJC, Kanibolotsky, A, Chen, Y, Perepichka, IF, Mackintosh, A, Gu, E, Skabara, P, Pethrick, R & Dawson, M 2009, 'Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing' Optics Express, vol. 17, no. 19, pp. 16436-16443. https://doi.org/10.1364/OE.17.016436

Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing. / Wu, M.; Gong, Zheng; Keuhne, A.J.C.; Kanibolotsky, Alexander; Chen, Yujie; Perepichka, I.F.; Mackintosh, Allan; Gu, Erdan; Skabara, Peter; Pethrick, Richard; Dawson, Martin.

In: Optics Express, Vol. 17, No. 19, 31.08.2009, p. 16436-16443.

Research output: Contribution to journalArticle

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AU - Gong, Zheng

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Wu M, Gong Z, Keuhne AJC, Kanibolotsky A, Chen Y, Perepichka IF et al. Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing. Optics Express. 2009 Aug 31;17(19):16436-16443. https://doi.org/10.1364/OE.17.016436