A facile method for flexible GaN‐based light‐emitting diodes |
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| Authors: | Younghun Jung Xiaotie Wang Sung Hyun Kim Fan Ren Jihyun Kim Stephen J Pearton |
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| Institution: | 1. Department of Chemical and Biological Engineering, Korea University, Anam‐dong 5‐1, Sungbuk‐gu, Seoul 136‐701, Korea;2. Department of Chemical Engineering, University of Florida, Gainesville, FL 32611, USA;3. Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611, USA |
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| Abstract: | Flexible GaN‐based light‐emitting diodes (LEDs) on polyethylene terephthalate (PET) substrates are demonstrated. The process uses commercial LEDs on patterned sapphire substrates, laser lift‐off (LLO), wet etching for additional surface roughening, and mounting of the freestanding LED on a PET substrate. Electrical and optical properties from the free‐standing LLO‐LEDs mounted on the flexible PET substrates were characterized. The process is scalable to large wafer diameters. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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| Keywords: | light‐emitting diodes laser lift‐off flexible electronics |
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