Sivananthan Laboratories, Inc.

Anthony Joseph Ciani

Christoph H Grein

Richard Edward Pimpinella

Christopher Frank Buurma

Jered Feldman

A process for the post-deposition treatment of colloidal quantum dot films to improve photodetector performance. A colloidal quantum dot film is first deposited on a suitable substrate or device structure, given a ligand exchange, and then allowed to dry into a completed film. Next, a solution is prepared consisting of dilute HOmixed with a polar solvent such as isopropyl alcohol solution. The prepared film and substrate are then immersed into the prepared solution over a set interval of time. After which, the film is removed and rinsed with solvent, then dried with clean Ngas. After this treatment, the colloidal quantum dot film is ready for use as a photodetector.

Process for the post-deposition treament of colloidal quantum dot photodetector films to improve performance by using hydrogen peroxide

A photodetector device is provided that includes a ROIC having a top surface with a plurality of electrically conductive first electrodes within a pattern of surface areas on the top surface each surface area having a border, and an electrically conductive electrode grid having a portion on the border of each of the surface areas; and a photodetector film overlying the surface area. The electrode grid can be configured to surround each surface area to define the borders of the surface areas as pixels. The photodetector film can be a colloidal quantum dot film. The ROIC has circuit elements signal-connected to the plurality of first electrodes. Methods for forming the photodetector device include photolithography and deposition methods.

Adjacent electrode which provides pixel delineation for monolithic integration of a colloidal quantum dot photodetector film with a readout integrated circuit

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Palatine, IL, United States of America

Anthony Joseph Ciani