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. 15, 2016
Filed:
Jan. 04, 2012
Zongcheng Jiang, Oceanside, CA (US);
Bogumila Rachwal, Oceanside, CA (US);
Hongxi Zhang, Tucson, AZ (US);
Peng Wang, San Diego, CA (US);
Michiharu Yamamoto, Carlsbad, CA (US);
Shuangxi Wang, Corona, CA (US);
Zongcheng Jiang, Oceanside, CA (US);
Bogumila Rachwal, Oceanside, CA (US);
Hongxi Zhang, Tucson, AZ (US);
Peng Wang, San Diego, CA (US);
Michiharu Yamamoto, Carlsbad, CA (US);
Shuangxi Wang, Corona, CA (US);
Nitto Denko Corporation, Osaka, JP;
Abstract
This invention is related to novel perylene diester derivatives represented by the general formula (I) or general formula (II) as described herein. The derivatives are useful in various applications, such as luminescent dyes for optical light collection systems, fluorescence-based solar collectors, fluorescence-activated displays, and/or single-molecule spectroscopy. The invention also relates to a luminescent medium, such as a luminescent film, that can significantly enhance the solar harvesting efficiency of thin film CdS/CdTe or CIGS solar cells. The luminescent medium comprises an optically transparent polymer matrix and at least one luminescent dye that comprises a perylene diester derivative. Over 16% of an efficiency enhancement to a CdS/CdTe solar cell and over 12% of an efficiency enhancement to a CIGS solar cell can be achieved.