Pb-salt Mid-infrared Detectors and Method for Making Same

摘要

The disclosure describes methods for preparing lead salt materials which are sensitive to the mid-infrared spectrum which can be used to manufacture high-uniformity, high-detectivity, polycrystalline lead salt photoconductive and photovoltaic photodetectors.

主权项

1. A method of sensitizing a lead salt film, comprising:
exposing a lead salt-coated substrate to at least one of oxygen and nitrogen for a duration of time in a range of about 1 minute to about 60 minutes at a temperature in a range of about 300° C. to about 450° C., followed by a step of exposing the lead salt-coated substrate to an iodine atmosphere for a duration of time in a range of about 1 minute to about 60 minutes at a temperature in a range of about 300° C. to about 450° C., forming a sensitized lead salt-coated substrate.