Light-emitting device and method for manufacturing light-emitting device
First Claim
1. A light emitting device having formed therein a light emitting layer section based on a double heterostructure in which a p-type cladding layer, an active layer and an n-type cladding layer, individually composed of a MgaZn1-aO (0≦
- a≦
1) type oxide, are stacked in this order, the device using a face on the n-type cladding layer side as a light extraction surface, and having, as being provided on the main surface on the light extraction surface side of the n-type cladding layer, an n-type low resistivity layer composed of a MgaZn1-aO (0≦
a≦
1) type oxide, and having a content of an n-type dopant larger than that in the n-type cladding layer.
2 Assignments
0 Petitions
Accused Products
Abstract
A light emitting device 1 has formed therein a light emitting layer section 24 based on a double heterostructure in which a p-type cladding layer 34, an active layer 33 and an n-type cladding layer 32, individually composed of a MgaZn1-aO (0≦a≦1) type oxide, are stacked in this order, and uses a face on the n-type cladding layer side as a light extraction surface. The device also has, as being provided on the main surface on the light extraction surface side of the n-type cladding layer 32, an n-type low resistivity layer 35 composed of a MgaZn1-aO type oxide, and having a content of an n-type dopant larger than that in the n-type cladding layer 32. There is thus provided a light emitting device of MgaZn1-aO-type oxide base, excellent in the light extraction efficiency, having the light emitting layer section composed of a MgaZn1-aO-type oxide, and a high conductivity MgZnO-base compound semiconductor layer disposed on the light extraction surface side.
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Citations
28 Claims
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1. A light emitting device having formed therein a light emitting layer section based on a double heterostructure in which a p-type cladding layer, an active layer and an n-type cladding layer, individually composed of a MgaZn1-aO (0≦
- a≦
1) type oxide, are stacked in this order, the device using a face on the n-type cladding layer side as a light extraction surface, and having, as being provided on the main surface on the light extraction surface side of the n-type cladding layer, an n-type low resistivity layer composed of a MgaZn1-aO (0≦
a≦
1) type oxide, and having a content of an n-type dopant larger than that in the n-type cladding layer. - 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, 28)
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Specification