Light-emitting devices including a nonperiodic pattern
First Claim
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1. A light-emitting device, comprising:
- a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region, wherein;
a surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer; and
the surface has a dielectric function that varies spatially according to a nonperiodic pattern that is configured to increase light extraction from the device via the surface, the nonperiodic pattern is created by the configuration of a plurality of holes, wherein the holes are not encircled by other holes, wherein when viewed in a direction in which the holes extend from the surface into the first layer, the non-periodic pattern has no translational symmetry along the surface over a unit cell that has a length that is at least 50 times the peak wavelength of light generated by the light-generating region.
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Abstract
Light-emitting devices, and related components, systems and methods are disclosed. In some embodiments, the light-emitting devices include a multi-layer stack of materials. The stack of materials includes a light-generating region and a first layer supported by the light-generating region. The surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer. The surface has a dielectric function that varies spatially according to a nonperiodic pattern.
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Citations
27 Claims
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1. A light-emitting device, comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region, wherein; a surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer; and the surface has a dielectric function that varies spatially according to a nonperiodic pattern that is configured to increase light extraction from the device via the surface, the nonperiodic pattern is created by the configuration of a plurality of holes, wherein the holes are not encircled by other holes, wherein when viewed in a direction in which the holes extend from the surface into the first layer, the non-periodic pattern has no translational symmetry along the surface over a unit cell that has a length that is at least 50 times the peak wavelength of light generated by the light-generating region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification