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Long wavelength light emitting device with photoluminescence emission and high quantum efficiency
Long wavelength light emitting device with photoluminescence emission and high quantum efficiency
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机译:具有光致发光发射和高量子效率的长波长发光器件
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摘要
Various embodiments of light emitting devices with high quantum efficiencies are described herein. In one embodiment, a light emitting device includes a first contact, a second contact spaced apart from the first contact, and a first active region between the first and second contacts. The first active region is configured to produce a first emission via electroluminescence when a voltage is applied between the first and second contacts, and the first emission having a first center wavelength. The light emitting device also includes a second active region spaced apart from the first active region. The second active region is configured to absorb at least a portion of the first emission and produce a second emission via photoluminescence, and the second emission having a second center wavelength longer than the first center wavelength.
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