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.:
Date of Patent:
Mar. 28, 2023
Filed:
Mar. 20, 2020
Applicant:
Daegu Gyeongbuk Institute of Science and Technology (Dgist), Daegu, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/89 (2006.01); B82Y 40/00 (2011.01); B82Y 20/00 (2011.01);
U.S. Cl.
CPC ...
C09K 11/892 (2013.01); B82Y 20/00 (2013.01); B82Y 40/00 (2013.01);
Abstract
The present invention provides shortwave infrared ray emitting nanoparticles including a core having band gap energy of E; an intermediate layer that is formed on the core and has band gap energy of E; and an outer layer that is formed on the intermediate layer and has band gap energy of E, in which the size of the Eis smaller than the size of the E1 and the size of the E. According to the present invention, it is possible to provide a solar cell which is improved in efficiency and life span and can be produced by a solution process.