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Comparison of Alternative Approaches to High-Power Thin-Film LED Chip Design
K.A. Bulashevich, O.V. Khokhlev, M.V. Bogdanov, M.S. Ramm, I.Yu. Evstratov, S.Yu. Karpov
Proceedings of the Second International Conference on White LEDs and Solid State Lighting, Taipei (2009) (01)
Vertical and planar thin-film flip-chip blue LEDs are compared by simulation to identify strong and weak points of approaches to their design. Current crowding and its effect on internal quantum efficiency and light extraction efficiency are found to be key factors limiting the device performance.
 
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