Light emitting diodes with high light extraction and high reflectivity

摘要: The invention is a light emitting diode that exhibits high reflectivity to externally incident and extraction efficiency for internally generated light. includes first reflecting electrode reflects both can be metal layer; or transparent layer with plurality of contacts extending from the through layer. A multi-layer semiconductor structure in contact has an active region emits wavelength range. absorption coefficient less than 50 cm −1 . second underlies layer, An array extracting elements extends at least part way improves