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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.

Patent No.:

US 11626489 B1

PDFFull Text
Date of Patent:
Apr. 11, 2023

Filed:

Dec. 03, 2021

Optical sensor and image sensor including graphene quantum dots

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Jaeho Lee, Seoul, KR;

Hyeonjin Shin, Suwon-si, KR;

Dongwook Lee, Suwon-si, KR;

Seongjun Park, Seoul, KR;

Kiyoung Lee, Seoul, KR;

Eunkyu Lee, Yongin-si, KR;

Sanghyun Jo, Seoul, KR;

Jinseong Heo, Seoul, KR;

Assignee:

Samsung Electronics Co., Ltd., Gyeonggi-do, KR;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Douglas M Menz

Int. Cl.
CPC ...
H01L 31/0352 (2006.01); H01L 29/16 (2006.01); H01L 31/09 (2006.01); H01L 31/028 (2006.01); H01L 31/101 (2006.01); H01L 51/05 (2006.01); H01L 51/00 (2006.01); H01L 27/144 (2006.01); H01L 27/146 (2006.01); H01L 27/15 (2006.01); H01L 29/12 (2006.01); H01L 27/30 (2006.01);
U.S. Cl.
CPC ...
H01L 29/1606 (2013.01); H01L 27/1443 (2013.01); H01L 27/14609 (2013.01); H01L 27/156 (2013.01); H01L 29/122 (2013.01); H01L 31/028 (2013.01); H01L 31/035218 (2013.01); H01L 31/035236 (2013.01); H01L 31/09 (2013.01); H01L 31/101 (2013.01); H01L 51/0045 (2013.01); H01L 51/0579 (2013.01); H01L 27/307 (2013.01); Y02E 10/547 (2013.01);
Abstract

Provided are an optical sensor including graphene quantum dots and an image sensor including an optical sensing layer. The optical sensor may include a graphene quantum dot layer that includes a plurality of first graphene quantum dots bonded to a first functional group and a plurality of second graphene quantum dots bonded to a second functional group that is different from the first functional group. An absorption wavelength band of the optical sensor may be adjusted based on types of functional groups bonded to the respective graphene quantum dots and/or sizes of the graphene quantum dots.

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