| 摘要 |
A p-type electrode structure having low resistance and a high yield light emitting element operable at low operating voltage is disclosed. On a substrate is formed an n-type clad layer, an active layer, a p-type semiconductor layer, a current structure layer, an n-type semiconductor layer and a metal layer. The energy level of a conduction band edge of the n-type semiconductor layer is deeper than that of a valence band edge of the p-type semiconductor layer, and the Fermi level of the metal layer is shallower than the energy level of a conduction band edge of the n-type semiconductor layer.
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