The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 24, 2016

Filed:

Apr. 16, 2014
Applicant:

Research Triangle Institute, Research Triangle Park, NC (US);

Inventors:

Ethan Klem, Durham, NC (US);

John Lewis, Durham, NC (US);

Assignee:

Research Triangle Institute, Research Triangle Park, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/06 (2006.01); H01L 51/42 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/4213 (2013.01); H01L 51/0002 (2013.01); H01L 51/0046 (2013.01); Y02E 10/549 (2013.01);
Abstract

A photodetector includes one or more photodiodes and a signal processing circuit. Each photodiode includes a transparent first electrode, a second electrode, and a heterojunction interposed between the first electrode and the second electrode. Each heterojunction includes a quantum dot layer and a fullerene layer disposed directly on the quantum dot layer. The signal processing circuit is in signal communication each the second electrode. The photodetector may be responsive to wavelengths in the infrared, visible, and/or ultraviolet ranges. The quantum dot layer may be treated with a chemistry that increases the charge carrier mobility of the quantum dot layer.


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