초록 ▼

A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensiti

A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.

대표청구항 ▼

What is claimed is: 1. An image sensor comprising:a semiconductor substrate;a plurality of pixel regions, each pixel region comprising a first electrode, a second electrode, and an optically sensitive layer over the substrate, the optically sensitive layer positioned to receive light;a pixel circuit

What is claimed is: 1. An image sensor comprising:a semiconductor substrate;a plurality of pixel regions, each pixel region comprising a first electrode, a second electrode, and an optically sensitive layer over the substrate, the optically sensitive layer positioned to receive light;a pixel circuit for each pixel region, each pixel circuit comprising a charge store and a read out circuit, the charge store and the read out circuit in electrical communication with the optically sensitive layer of the respective pixel region; anda plurality of conductive layers positioned between the charge store of the respective pixel region and the optically sensitive layer of the corresponding pixel region, the conductive layers providing an opaque shield such that the respective charge store is shielded from the light incident on the optically sensitive layer when the light is in a wavelength band, wherein a set of conductive layers of the plurality of conductive layers is in electrical communication with the optically sensitive layer, the second electrode being a common second electrode that is common to all pixel regions of the plurality of pixel regions, the common second electrode being connected through an interconnect metal layer, the plurality of conductive layers including the interconnect metal layer.