Display device and manufacturing method for light emitting element
A display device includes a first electrode and a second electrode, spaced apart from each other, and a light emitting element disposed between the first electrode and the second electrode. The light emitting element includes a core area and a doping area surrounding the core area.
1 . A display device comprising:
a first electrode and a second electrode spaced apart from each other; and
a light emitting element disposed between the first electrode and the second electrode, the light emitting element comprising a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer,
wherein the light emitting element includes a core area and a doping area surrounding the core area,
wherein a doping concentration of the doping area is higher than a doping concentration of the core area, and
wherein the doping area includes an outer portion of at least one of the first semiconductor layer, the second semiconductor layer, or the active layer.
2 . The display device of claim 1 , wherein the doping area overlaps the first semiconductor layer, the second semiconductor layer, and the active layer in a plan view.
3 . The display device of claim 1 , wherein the doping area partially overlaps the active layer in a plan view.
4 . The display device of claim 3 , wherein the active layer includes barrier layers and well layers that are alternately stacked.
5 . The display device of claim 4 , wherein the doping area overlaps the barrier layers and the well layers in a plan view.
6 . The display device of claim 4 , wherein the doping area partially overlaps the well layers in a plan view.
7 . The display device of claim 1 , wherein a thickness of the doping area is smaller than a diameter of the core area.
8 . The display device of claim 7 , wherein the thickness of the doping area is about 100 nm or less.
9 . The display device of claim 1 , further comprising:
an insulative film surrounding the doping area.
10 . The display device of claim 1 , further comprising:
a first connection electrode electrically connected to the first semiconductor layer;
and a second connection electrode electrically connected to the second semiconductor layer.