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

• Main Authors: Sun, Handong, Dawson, M. D., Mackintosh, A. R., Gu, E., Zhang, H. X., Kuhne, A. J. C., Pethrick, R. A., Belton, C., Bradley, D. D. C.
• Format: Article
• Language: English
• Published: 2009
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/91712; http://hdl.handle.net/10220/5999
• Institution: Nanyang Technological University

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 m 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.