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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 11746292 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 three QD structural units arranged sequentially along a radial direction. Among the at least three QD structural units, each QD structural unit at a center of the QD composite material and each QD structural unit at a surface of the QD composite material have a gradient alloy composition structure with an energy level width increasing along the radial direction from the center to the surface, along the radial direction, energy levels of adjacent gradient alloy composition structures of the QD structure units are continuous. A QD structural unit located between the QD structural units at the center and the QD structural units at the surface have a homogeneous alloy composition structure.

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