Patterning and integration of polyfluorene polymers on micro-pixellated uV alInGaN light-emitting diodes

B.J.E. Guilhabert, Z. Gong, C. Belton, A.R. Mackintosh, E. Gu, P.N. Stavrinou, D.D.C. Bradley, R.A. Pethrick, M.D. Dawson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the integration of micro-patterned polyfluorene conjugated polymers onto GaN-based ultraviolet (UV) micro-pixellated light-emitting diode arrays (micro-LEDs). The 64 × 64 element matrix-addressable AlInGaN devices have a pixel size of 20 µm diameter on a 50 µm pitch, emitting at 368 nm. Each array is covered with a 2.5 µm thick photo-curable deep-UV-transparent polymer and a 30 nm thick polyfluorene film. This polymer bi-layer is subsequently patterned into an array of 28 µm diameter discs aligned with the pixels of the micro-LED array. Polymer down-converted visible emission from these pattern-programmable organic/inorganic electroluminescent micro-arrays is achieved.
LanguageEnglish
JournalJournal of Physics D: Applied Physics
Volume41
Issue number094008
DOIs
Publication statusPublished - 2008

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Light emitting diodes
Polymers
light emitting diodes
polymers
Pixels
Conjugated polymers
Thick films
pixels
thick films
matrices

Keywords

  • patterning
  • polyfluorene polymers
  • micro-pixellation
  • light-emitting diodes
  • photonics
  • optics

Cite this

Guilhabert, B.J.E. ; Gong, Z. ; Belton, C. ; Mackintosh, A.R. ; Gu, E. ; Stavrinou, P.N. ; Bradley, D.D.C. ; Pethrick, R.A. ; Dawson, M.D. / Patterning and integration of polyfluorene polymers on micro-pixellated uV alInGaN light-emitting diodes. In: Journal of Physics D: Applied Physics. 2008 ; Vol. 41, No. 094008.
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abstract = "We report the integration of micro-patterned polyfluorene conjugated polymers onto GaN-based ultraviolet (UV) micro-pixellated light-emitting diode arrays (micro-LEDs). The 64 × 64 element matrix-addressable AlInGaN devices have a pixel size of 20 µm diameter on a 50 µm pitch, emitting at 368 nm. Each array is covered with a 2.5 µm thick photo-curable deep-UV-transparent polymer and a 30 nm thick polyfluorene film. This polymer bi-layer is subsequently patterned into an array of 28 µm diameter discs aligned with the pixels of the micro-LED array. Polymer down-converted visible emission from these pattern-programmable organic/inorganic electroluminescent micro-arrays is achieved.",
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Patterning and integration of polyfluorene polymers on micro-pixellated uV alInGaN light-emitting diodes. / Guilhabert, B.J.E.; Gong, Z.; Belton, C.; Mackintosh, A.R.; Gu, E.; Stavrinou, P.N.; Bradley, D.D.C.; Pethrick, R.A.; Dawson, M.D.

In: Journal of Physics D: Applied Physics, Vol. 41, No. 094008, 2008.

Research output: Contribution to journalArticle

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T1 - Patterning and integration of polyfluorene polymers on micro-pixellated uV alInGaN light-emitting diodes

AU - Guilhabert, B.J.E.

AU - Gong, Z.

AU - Belton, C.

AU - Mackintosh, A.R.

AU - Gu, E.

AU - Stavrinou, P.N.

AU - Bradley, D.D.C.

AU - Pethrick, R.A.

AU - Dawson, M.D.

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AB - We report the integration of micro-patterned polyfluorene conjugated polymers onto GaN-based ultraviolet (UV) micro-pixellated light-emitting diode arrays (micro-LEDs). The 64 × 64 element matrix-addressable AlInGaN devices have a pixel size of 20 µm diameter on a 50 µm pitch, emitting at 368 nm. Each array is covered with a 2.5 µm thick photo-curable deep-UV-transparent polymer and a 30 nm thick polyfluorene film. This polymer bi-layer is subsequently patterned into an array of 28 µm diameter discs aligned with the pixels of the micro-LED array. Polymer down-converted visible emission from these pattern-programmable organic/inorganic electroluminescent micro-arrays is achieved.

KW - patterning

KW - polyfluorene polymers

KW - micro-pixellation

KW - light-emitting diodes

KW - photonics

KW - optics

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