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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 10964896 B1

PDFFull Text
Date of Patent:
Mar. 30, 2021

Filed:

Apr. 29, 2019

Perovskite light-emitting device

Applicant:

Postech Academy-industry Foundation, Pohang-si, KR;

Inventors:

Tae-Woo Lee, Pohang-si, KR;

Sanghyuk Im, Hwaseong-si, KR;

Himchan Cho, Daegu, KR;

Young-Hoon Kim, Daejeon, KR;

Assignees:

POSTECH ACADEMY-INDUSTRY FOUNDATION;

SN DISPLAY CO., LTD.;

Attorney:

Renaissance IP Law Group LLP

Primary Examiner:

Nikolay K Yushin

Int. Cl.
CPC ...
H01L 51/00 (2006.01); C09K 11/06 (2006.01); C01G 21/16 (2006.01); H01L 31/00 (2006.01); C09K 11/02 (2006.01); H01L 31/032 (2006.01); H01L 31/0352 (2006.01); C07F 7/24 (2006.01); C09K 11/66 (2006.01); H01L 51/50 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); H01L 51/42 (2006.01); H01L 51/44 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0077 (2013.01); C01G 21/16 (2013.01); C07F 7/24 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); C09K 11/665 (2013.01); H01L 31/00 (2013.01); H01L 31/032 (2013.01); H01L 31/0352 (2013.01); H01L 51/004 (2013.01); H01L 51/0034 (2013.01); H01L 51/0037 (2013.01); H01L 51/0072 (2013.01); H01L 51/502 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/34 (2013.01); C01P 2002/60 (2013.01); C01P 2004/64 (2013.01); C01P 2006/40 (2013.01); C09K 2211/10 (2013.01); C09K 2211/188 (2013.01); H01L 51/0003 (2013.01); H01L 51/0059 (2013.01); H01L 51/426 (2013.01); H01L 51/4273 (2013.01); H01L 51/442 (2013.01); H01L 51/5096 (2013.01); H01L 51/5206 (2013.01); H01L 2251/308 (2013.01); Y10S 977/774 (2013.01); Y10S 977/788 (2013.01); Y10S 977/813 (2013.01); Y10S 977/892 (2013.01); Y10S 977/896 (2013.01); Y10S 977/948 (2013.01); Y10S 977/95 (2013.01);
Abstract

Provided are: a light-emitting layer for a perovskite light-emitting device; a method for manufacturing the same; and a perovskite light-emitting device using the same. The method of the present invention for manufacturing a light-emitting layer for a halide perovskite light-emitting device comprises a step of forming a first nanoparticle thin film by coating, on a member for coating a light-emitting layer, a solution comprising halide perovskite nanoparticles including a perovskite nanocrystal structure. Thereby, a nanoparticle light emitter has therein a halide perovskite having a crystal structure in which FCC and BCC are combined; and can show high color purity. In addition, it is possible to improve the luminescence efficiency and luminance of a device by making perovskite as nanoparticles and then introducing the same into a light-emitting layer.

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