Vertically integrated solid state color imager
First Claim
Patent Images
1. A solid state color imaging device comprising:
- a first plurality of spaced apart linear conductors supported on an insulating substrate,a first photovoltaic semiconductor layer deposited on said substrate and first conductors, said first semiconductor layer comprising a p-i-n amorphous silicon structure having i-layer thickness and/or bandgap selected to cause said layer to primarily absorb and provide electrical response to a first color band,a second plurality of spaced apart conductors deposited on said first semiconductor layer, said second conductors being transparent and aligned orthogonal to said first conductors,a second photovoltaic semiconductor layer deposited on said first layer and said second conductors, said second semiconductor layer comprising a p-i-n amorphous silicon structure having i-layer thickness and/or bandgap selected to cause said layer to primarily provide electrical response to a second color band, anda third plurality of spaced apart linear conductors deposited on said second semiconductor layer, said third conductors positioned above and in alignment with said first conductors.
3 Assignments
0 Petitions
Accused Products
Abstract
A solid state color imaging device comprising a two dimensional array of stacked thin film photovoltaic devices with devices in each stack responsive to selected color bands. Color discrimination may be enhanced by design of intermediate transparent conductive layers to act as optical filters.
37 Citations
3 Claims
-
1. A solid state color imaging device comprising:
-
a first plurality of spaced apart linear conductors supported on an insulating substrate, a first photovoltaic semiconductor layer deposited on said substrate and first conductors, said first semiconductor layer comprising a p-i-n amorphous silicon structure having i-layer thickness and/or bandgap selected to cause said layer to primarily absorb and provide electrical response to a first color band, a second plurality of spaced apart conductors deposited on said first semiconductor layer, said second conductors being transparent and aligned orthogonal to said first conductors, a second photovoltaic semiconductor layer deposited on said first layer and said second conductors, said second semiconductor layer comprising a p-i-n amorphous silicon structure having i-layer thickness and/or bandgap selected to cause said layer to primarily provide electrical response to a second color band, and a third plurality of spaced apart linear conductors deposited on said second semiconductor layer, said third conductors positioned above and in alignment with said first conductors. - View Dependent Claims (2, 3)
-
Specification