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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 10047284 B1

PDFFull Text
Date of Patent:
Aug. 14, 2018

Filed:

Nov. 06, 2015

Perovskite nanocrystal particle light-emitter whose content is changed, method of producing the same, and light emitting element using the same

Applicant:

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

Inventors:

Taewoo Lee, Pohang-si, KR;

Sanghyuk Im, Hwaseong-si, KR;

Younghoon Kim, Daejeon, KR;

Himchan Cho, Daegu, KR;

Assignee:

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

Attorney:

LEX IP Meister, PLLC

Primary Examiner:

David S Blum

Int. Cl.
CPC ...
H01L 35/24 (2006.01); H01L 51/00 (2006.01); H01L 21/00 (2006.01); C09K 11/06 (2006.01); C09K 11/02 (2006.01); H01G 9/20 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H01L 51/42 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); C09K 11/025 (2013.01); H01G 9/2059 (2013.01); H01L 51/0077 (2013.01); C09K 2211/188 (2013.01); H01L 51/0003 (2013.01); H01L 51/0026 (2013.01); H01L 51/422 (2013.01); H01L 51/5032 (2013.01); H01L 51/56 (2013.01); H01L 2251/5346 (2013.01);
Abstract

Provided are an organic/inorganic/hybrid perovskite nanocrystal particle light-emitter having a gradient structure, a method of producing the same, and a light emitting element using the same. The organic/inorganic/hybrid perovskite nanocrystal particle light-emitter having a gradient structure includes an organic/inorganic/hybrid perovskite nanocrystal which is dispersible in an organic solvent, wherein the nanocrystal has a gradient composition in which a composition is changed from the center thereof to the outside. Therefore, the gradual change in the content in the nanocrystal may be used to uniformly adjust a fraction in the nanocrystal, to reduce surface oxidation, and to improve exciton confinement in the perovskite present in large quantities inside the nanocrystal, and thus light luminescence efficiency may be improved and durability and stability may be increased.

Find Patent Forward Citations

Lee, Taewoo. (2018). Perovskite nanocrystal particle light-emitter whose content is changed, method of producing the same, and light emitting element using the same (U.S. Patent No. 10047284). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10047284

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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