Materials, fabrication equipment, and methods for stable, sensitive photodetectors and image sensors made therefrom

摘要

Optically sensitive devices include a device comprising a first contact and a second contact, each having a work function, and an optically sensitive material between the first contact and the second contact. The optically sensitive material comprises a p-type semiconductor, and the optically sensitive material has a work function. Circuitry applies a bias voltage between the first contact and the second contact. The optically sensitive material has an electron lifetime that is greater than the electron transit time from the first contact to the second contact when the bias is applied between the first contact and the second contact. The first contact provides injection of electrons and blocking the extraction of holes. The interface between the first contact and the optically sensitive material provides a surface recombination velocity less than 1 cm/s.

主权项

1. An optically sensitive device comprising:
a first contact; a second contact; and an optically sensitive material comprising a cross-linking agent, at least one functional group of the cross-linking agent binding the first contact, the combination of the first contact, the cross-linking agent binding the first contact, and the optically sensitive layer comprise a Schottky contact, wherein electrons are withdrawn with high efficiency, and holes are injected with low efficiency.