B Guilhabert et al 2008 J. Phys. D: Appl. Phys. 41 094008 doi:10.1088/0022-3727/41/9/094008
B Guilhabert1, Z Gong1, H Zhang1, C Belton2, A MackIntosh3, E Gu1, M Campoy-Quiles2, P N Stavrinou2, D D C Bradley2, R A Pethrick3 and M D Dawson1
Show affiliationsWe 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.
61.41.+e Polymers, elastomers, and plastics
Soft matter, liquids and polymers
Condensed matter: electrical, magnetic and optical
Issue 9 (7 May 2008)
Received 20 September 2007
Published 4 April 2008
B Guilhabert et al 2008 J. Phys. D: Appl. Phys. 41 094008
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