An energy harvesting imaging sensor includes an array of pixel structures each formed from a semiconductor having a photodiode overlying a photovoltaic diode. The photodiode and photovoltaic diode are implemented as a vertically stacked P+/N.sub.WELL/P.sub.SUB junction. This structure enables simultaneous imaging and energy harvesting by generating charge in the photodiode that is indicative of light impinging on the photodiode and simultaneously generating charge from the light in the photovoltaic diode located underneath the photodiode.

An energy harvesting imaging sensor includes an array of pixel structures each formed from a semiconductor having a photodiode overlying a photovoltaic diode. The photodiode and photovoltaic diode are implemented as a vertically stacked P+/N.sub.WELL/P.sub.SUB junction. This structure enables simultaneous imaging and energy harvesting by generating charge in the photodiode that is indicative of light impinging on the photodiode and simultaneously generating charge from the light in the photovoltaic diode located underneath the photodiode.

Methods of fabricating solar cells having junctions retracted from cleaved edges, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface, a back surface, and sidewalls. An emitter region is in the substrate at the light-receiving surface of the substrate. The emitter region has sidewalls laterally retracted from the sidewalls of the substrate. A passivation layer is on the sidewalls of the emitter region.

Methods of fabricating solar cells having junctions retracted from cleaved edges, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface, a back surface, and sidewalls. An emitter region is in the substrate at the light-receiving surface of the substrate. The emitter region has sidewalls laterally retracted from the sidewalls of the substrate. A passivation layer is on the sidewalls of the emitter region.

Methods of fabricating solar cells having junctions retracted from cleaved edges, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface, a back surface, and sidewalls. An emitter region is in the substrate at the light-receiving surface of the substrate. The emitter region has sidewalls laterally retracted from the sidewalls of the substrate. A passivation layer is on the sidewalls of the emitter region.

Methods of fabricating solar cells having junctions retracted from cleaved edges, and the resulting solar cells, are described. In an example, a solar cell includes a substrate having a light-receiving surface, a back surface, and sidewalls. An emitter region is in the substrate at the light-receiving surface of the substrate. The emitter region has sidewalls laterally retracted from the sidewalls of the substrate. A passivation layer is on the sidewalls of the emitter region.

There is provided a two-terminal device, including a substrate comprising a first cell having a first characteristic resistance, and a second cell, spaced apart from the first cell along the web direction of the substrate, having a second characteristic resistance; a first terminal and a second terminal, each terminal being formed towards or at opposing edges of the substrate across the transverse direction, and each terminal being in electrical communication with the first cell and the second cell; and a connecting portion, between the first cell and the second cell, the connecting portion having a third characteristic resistance; wherein the third characteristic resistance is greater than or equal to at least one of the first characteristic resistance and the second characteristic resistance. There is also provided a method of forming such a two-terminal device).

There is provided a two-terminal device, including a substrate comprising a first cell having a first characteristic resistance, and a second cell, spaced apart from the first cell along the web direction of the substrate, having a second characteristic resistance; a first terminal and a second terminal, each terminal being formed towards or at opposing edges of the substrate across the transverse direction, and each terminal being in electrical communication with the first cell and the second cell; and a connecting portion, between the first cell and the second cell, the connecting portion having a third characteristic resistance; wherein the third characteristic resistance is greater than or equal to at least one of the first characteristic resistance and the second characteristic resistance. There is also provided a method of forming such a two-terminal device).

One or more solar cells arranged on a mounting surface along a first direction and extending out from the mounting surface in a second direction that is substantially perpendicular to the first direction. One or more angled reflectors may be arranged on the mounting surface along the first direction. The one or more angled reflectors may include a lens in a wedge shape having: an entrance surface extending along the first direction including one or more curved surfaces a bottom surface extending along the second direction and adjacent to the corresponding solar cell of the one or more solar cells, and a reflector surface extending along the second direction at an angle. The reflector surface may include a gradient texture comprising one or more flat surfaces, each of which is substantially parallel to the first direction, and one or more angled elevation surfaces.

The present disclosure provides methods of fabricating a multijunction solar cell panel in which one or more of the steps are performed using an automated process. In some embodiments, the automated process uses machine vision.