Double heterojunction light emitting diode with gallium nitride active layer
First Claim
1. A method of producing an active layer of zinc and silicon compensated n-type gallium nitride for a double heterostructure light emitting diode that emits in the blue portion of the visible spectrum, the method comprising:
- introducing vaporized sources of gallium, nitrogen, silicon and zinc into a chemical vapor deposition system that includes a semiconductor substrate compatible with the growth of gallium nitride thereon; and
whilemaintaining the temperature high enough to promote the epitaxial growth of zinc and silicon compensated gallium nitride, but lower than the temperature at which the gallium nitride would decompose.
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Abstract
A double heterostructure for a light emitting diode comprises a layer of aluminum gallium nitride having a first conductivity type; a layer of aluminum gallium nitride having the opposite conductivity type; and an active layer of gallium nitride between the aluminum gallium nitride layers, in which the gallium nitride layer is co-doped with both a Group II acceptor and a Group IV donor, with one of the dopants being present in an amount sufficient to give the gallium nitride layer a net conductivity type, so that the active layer forms a p-n junction with the adjacent layer of aluminum gallium nitride having the opposite conductivity type.
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7 Claims
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1. A method of producing an active layer of zinc and silicon compensated n-type gallium nitride for a double heterostructure light emitting diode that emits in the blue portion of the visible spectrum, the method comprising:
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introducing vaporized sources of gallium, nitrogen, silicon and zinc into a chemical vapor deposition system that includes a semiconductor substrate compatible with the growth of gallium nitride thereon; and
whilemaintaining the temperature high enough to promote the epitaxial growth of zinc and silicon compensated gallium nitride, but lower than the temperature at which the gallium nitride would decompose. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification