Hybrid inorganic/organic microstructured light-emitting diodes produced using photocurable polymer blends

E. Gu, H. X. Zhang, H. D. Sun, M. D. Dawson, A. R. Mackintosh, A. J.C. Kuehne, R. A. Pethrick, C. Belton, D. D.C. Bradley

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Abstract

Light-emitting diodes (LEDs) in the form of a one-dimensional array of microstripes emitting at 370 nm were fabricated from AlInGaN inorganic semiconductor. These microlight sources were then used to "directly write" microstructures in photocurable blends of organic light-emitting polymers (LEPs) spin coated onto the LED surface. In this way, thin microstripes of LEP as narrow as 50 μm have been fabricated and integrated with the micro-LEDs. These "self-aligned" polymer microstripes serve as wavelength downconverters under further excitation by the UV micro-LEDs, producing hybrid inorganic/organic microstructured LEDs. © 2007 American Institute of Physics.
Original languageEnglish (US)
JournalApplied Physics Letters
Volume90
Issue number3
DOIs
StatePublished - Jan 29 2007
Externally publishedYes

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