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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 11746293 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

Nov. 11, 2021

Quantum dot composite material, preparation method, and semiconductor device

Applicant:

Tcl Technology Group Corporation, Huizhou, CN;

Inventors:

Lei Qian, Huizhou, CN;

Yixing Yang, Huizhou, CN;

Zheng Liu, Huizhou, CN;

Assignee:

TCL TECHNOLOGY GROUP CORPORATION, Huizhou, CN;

Attorney:

Anova Law Group, PLLC

Primary Examiner:

C Melissa Koslow

Int. Cl.
CPC ...
C09K 11/88 (2006.01); H10K 50/115 (2023.01); C09K 11/56 (2006.01); B82Y 30/00 (2011.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 85/10 (2023.01); H10K 85/60 (2023.01); H10K 102/00 (2023.01); H10K 102/10 (2023.01); B82Y 20/00 (2011.01); B82Y 40/00 (2011.01); H01L 31/0352 (2006.01);
U.S. Cl.
CPC ...
C09K 11/883 (2013.01); C09K 11/565 (2013.01); H10K 50/115 (2023.02); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); H01L 31/035218 (2013.01); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 85/111 (2023.02); H10K 85/1135 (2023.02); H10K 85/146 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/6572 (2023.02); H10K 2102/00 (2023.02); H10K 2102/103 (2023.02); H10K 2102/321 (2023.02);
Abstract

A quantum dot (QD) composite material includes at least two structural units arranged sequentially along a radial direction. The QD composite material includes a type A3 QD structural unit and a type A4 QD structural unit. The type A3 QD structural units has a gradient alloy composition structure with an energy level width increasing along the radial direction toward a surface, and the type A4 QD structural unit has a homogeneous alloy composition structure. An inner part of the QD composite material includes one or more QD structural units having a gradient alloy composition structure, and energy levels in adjacent QD structural units having gradient alloy composition structures are continuous. The QD composite material includes one or more QD structural units having a homogeneous alloy composition structure in a region close to the surface.

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