WHITE LIGHT DEVICES USING NON-POLAR OR SEMIPOLAR GALLIUM CONTAINING MATERIALS AND PHOSPHORS

摘要

A packaged light emitting device that includes a substrate member comppsing a surface region and one or more light emitting diode devices overlying the surface region In a specific embodiment, at least one of the light emitting diode device is fabricated on a semipolar or nonpolar GaN containing substrate. The one or more light emitting diode devices are fabricated on the semipolar or nonpolar GaN containing substrate emits substantially polarized emission of one or more first wavelengths. At least at least one of the light emitting diode devices compnse a quantum well region, which is characterized by an electron wave function and a hole wave function In a specific embodiment, the electron wave function and the hole wave function are substantially overlapped within a predetermined spatial region of the quantum well region.