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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 10276807 B1

PDFFull Text
Date of Patent:
Apr. 30, 2019

Filed:

Nov. 06, 2015

Light-emitting layer for perovskite light-emitting device, method for manufacturing same, and perovskite light-emitting device using same

Applicant:

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

Inventors:

Tae-Woo Lee, Pohang-si, KR;

Sanghyuk Im, Hwaseong-si, KR;

Himchan Cho, Daegu, KR;

Young-Hoon Kim, Daejeon, KR;

Assignee:

POSTECH ACADEMY-INDUSTRY FOUNDATION, Pohang-si, Gyeongsangbuk-Do, KR;

Attorney:

Knobbe Martens Olson & Bear LLP

Primary Examiner:

Nikolay K Yushin

Int. Cl.
CPC ...
H01L 31/00 (2006.01); H01L 51/00 (2006.01); C07F 7/24 (2006.01); C09K 11/66 (2006.01); B82Y 40/00 (2011.01); C01G 21/16 (2006.01); C09K 11/06 (2006.01); H01L 51/50 (2006.01); C09K 11/02 (2006.01); B82Y 20/00 (2011.01); B82Y 30/00 (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 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

Disclosed 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 manufacturing the light-emitting layer comprises a step of forming a first nanoparticle thin film by coating, on a substrate for coating a light-emitting layer, a solution comprising organic and inorganic perovskite nanoparticles. Thereby, a nanoparticle light emitter has therein an organic and inorganic hybrid perovskite having a crystalline structure in which FCC and BCC are combined, and has a lamella structure in which an organic plane and an inorganic plane are alternatively stacked. Also, high color purity is realized because excitons are confined to the inorganic plane.

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