Light emitting diode (LED)
AssigneeHewlett-Packard Development Company, L.P.
InventorsMichael Renne Ty Tan, Shih-Yuan Wang, Alexandre M. Bratkovski, David A. Fattal
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Abstract
A light-emitting diode (LED) includes a p-type layer, an n-type layer, and an active layer arranged between the p-type layer and the n-type layer. The active layer includes at least one quantum well adjacent to at least one modulation-doped layer. Alternatively, or in addition thereto, at least one surface of the n-type layer or the p-type layer is texturized to form a textured surface facing the active layer.
Claims21
A light-emitting diode (LED) configured to spontaneously emit light without stimulation when electrically biased in a forward direction of an active layer, the LED comprising:
- a p-type layer;
- an n-type layer;
- and
- the active layer arranged between the p-type layer and the n-type layer, wherein the active layer comprises at least one quantum well adjacent to at least one modulation-doped layer, and
- a surface of at least one of the p-type layer and the n-type layer is texturized to form a textured surface having an irregular or random texture facing the active layer.
A light-emitting diode (LED) comprising:
- a p-type layer having a first surface and a second surface, wherein the first surface faces an active layer;
- an n-type layer having a first surface and a second surface, wherein the first surface faces an active layer;
- and
- the active layer is arranged between the p-type layer and the n-type layer, wherein the first surface of at least one of the p-type layer and the n-type layer is texturized to form a textured surface having an irregular or random texture facing the active layer.
Dependencies are inferred from the claim text.