Photoelectric apparatus and imaging apparatus including the same
A photoelectric apparatus includes a substrate and an array of a plurality of pixels each having at least one photoelectric device including a lower electrode over the substrate, a photoelectric layer over the lower electrode, and an upper electrode over the photoelectric layer, the photoelectric apparatus further includes an electrically conductive partition between adjacent two of the pixels, the conductive partition being electrically connected with the upper electrode and a transparent insulating layer on the upper electrode, and the pixels is individually sealed in by the partition and the transparent insulating layer.
1. A photoelectric apparatus comprising a substrate and an array of a plurality of pixels each having at least one photoelectric device comprising a lower electrode over the substrate, a photoelectric layer over the lower electrode, and an upper electrode over the photoelectric layer,
the photoelectric apparatus further comprising an electrically conductive partition between adjacent two of the pixels, the conductive partition being electrically connected with the upper electrode of each of the adjacent two of the pixels, and a transparent insulating layer on the upper electrode, the pixels being individually sealed in by the partition and the transparent insulating layer
wherein the plurality of pixels comprise a red pixel having a photoelectric device that converts red light to electricity, a green pixel having a photoelectric device that coverts green light to electricity, and a blue pixel having a photoelectric device that converts blue light to electricity.
2. The photoelectric apparatus according to claim 1 , wherein the upper electrode has an upper surface positioned lower than a top surface of the partition.
3. The photoelectric apparatus according to claim 2 , wherein the upper electrode is transparent.
4. The photoelectric apparatus according to claim 3 , wherein the partition has a shape of a grid as seen from a light incident side, and each of the pixels is isolated from every other pixels by the partition.
5. The photoelectric apparatus according to claim 3 , wherein the partition comprises a lower part and an upper part continuous with the lower part, the upper part having a smaller size than the lower part such that the upper part is set back from the lower part with respect to the individual pixels, and the upper electrode is in contact with both the lower part and the upper part.
6. The photoelectric apparatus according to claim 3 , wherein the partition comprises a lower part and an upper part continuous with the lower part, the upper part having a larger size than the lower part such that the upper part hangs over the lower part toward the individual pixels, and the upper electrode is in contact with both the lower part and the upper part.
7. The photoelectric apparatus according to claim 3 , further comprising an insulating layer separating the lower electrodes of adjacent two of the pixels from each other, and the partition is provided on the insulating layer.
8. The photoelectric apparatus according to claim 7 , wherein the upper electrode, the photoelectric layer, and the lower electrode of each of the pixels are equal in area as seen from a light incident side and are stacked in aligned relation.
9. The photoelectric apparatus according to claim 3 , wherein the photoelectric device is configured to collect electrons generated in the photoelectric layer in the lower electrode, the photoelectric layer is in contact with the partition, and the partition has a larger work function than the upper electrode.
10. The photoelectric apparatus according to claim 3 , wherein the photoelectric device is configured to collect holes generated in the photoelectric layer in the lower electrode, the photoelectric layer is in contact with the partition, and the partition has a smaller work function than the upper electrode.
11. The photoelectric apparatus according to claim 3 , wherein the plurality of pixels comprise a first pixel having a photoelectric device that converts electromagnetic radiation of a first wavelength range to electricity and a second pixel having a photoelectric device that converts electromagnetic radiation of a second wavelength range to electricity.
12. An imaging apparatus comprising the photoelectric apparatus according to claim 3 and having a drive circuit embedded in the substrate, the drive circuit being connected to the lower electrode and configured to output a signal in response to charge.
13. The imaging apparatus according to claim 12 , wherein the drive circuit is a CCD drive circuit or a CMOS drive circuit.