Patent ID: 8546853

Claim:
A photodetector comprising: a plurality of optically sensitive layers including a first optically sensitive layer and a second optically sensitive layer, the first optically sensitive layer overlying at least a portion of a first side of an integrated circuit and the second optically sensitive layer overlying at least a portion of a second side of the first optically sensitive layer, wherein the first optically sensitive layer comprises a first composition and the second optically sensitive layer comprises a second composition; a plurality of electrodes, wherein the plurality of optically sensitive layers is interposed between a respective first electrode and a respective second electrode of the plurality of electrodes, each respective first electrode being positioned laterally relative to at least a portion of the respective second electrode, each respective second electrode being disposed around the respective first electrode; and a coupling between the integrated circuit and the plurality of electrodes by which the integrated circuit is to selectively apply a bias and read signals from the optically sensitive layers including pixel information corresponding to light absorbed by the optically sensitive layers.