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US 9,041,032 B2Granted
Light emitting diode having strain-enhanced well layer
AssigneeSeoul Viosys Co., Ltd.
InventorsJoo Won Choi, Yoo Dae Han, Jeong Hun Heo
Life of this patent
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Abstract
An exemplary embodiment of the present invention includes a light emitting diode including a strain-enhanced well layer. The light emitting diode includes an n-contact layer, an active layer having a barrier layer and a well layer, a p-contact layer, and a strain-enhancing layer configured to enhance a strain applied to the well layer.
Claims19
A light emitting diode, comprising:
- an n-contact layer;
- a p-contact layer;
- an active layer comprising a barrier layer and a well layer, the active layer being arranged between the n-contact layer and the p-contact layer;
- and
- a strain-enhancing layer comprising the barrier layer and InAlGaN-based quantum dots disposed in the barrier layer, the strain-enhancing layer configured to increase a strain applied to the well layer.
2 more elements
A light emitting diode, comprising:
- a first-type contact layer;
- a second-type contact layer;
- an active layer comprising a barrier layer and a well layer, the active layer being arranged between the first-type contact layer and the second-type contact layer;
- and
- a strain-enhancing layer disposed between the barrier layer and the well layer, and configured to increase a compressive strain applied to the well layer, the strain-enhancing layer comprising a lattice constant lower than a lattice constant of the barrier layer.
2 more elements
A light emitting diode, comprising:
- a first-type contact layer;
- a second-type contact layer;
- an active layer comprising a barrier layer and a well layer, the active layer being disposed between the first-type contact layer and the second-type contact layer;
- and
- a strain-enhancing layer disposed in the barrier layer and comprising quantum dots, the strain-enhancing layer configured to increase a compressive strain applied to the well layer and comprising a lattice constant lower than a lattice constant of the barrier layer.
2 more elements
Dependencies are inferred from the claim text.