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:
May. 02, 2017
Filed:
Jul. 14, 2015
Nano and Advanced Materials Institute Limited, Hong Kong, HK;
Wing Leung Wong, Hong Kong, HK;
Lai To Leung, Hong Kong, HK;
Liang Zhang, Hong Kong, HK;
Chi Mei Chow, Hong Kong, HK;
Haojun Zhu, Hong Kong, HK;
Lai Fan Lai, Hong Kong, HK;
Kwok Keung Paul Ho, Hong Kong, HK;
NANO AND ADVANCED MATERIALS INSTITUTE LIMITED, Hong Kong, HK;
Abstract
The present invention relates to new fullerene derivatives of formulae 1a-d, 2 and 3: method of synthesizing said derivatives, and applications thereof in organic photovoltaics, e.g., organic solar cells. In particular, the fullerene derivatives of the present invention are soluble in non-halogenated solvents such that an environmental-friendly and low-cost fabrication method for industrialization of solar cell based on the new fullerene derivatives is provided. An ink formulation for forming a thin film on a substrate of organic photovoltaics comprising at least one of the fullerene derivatives of the present invention is also provided. Greater than 3% power conversion efficiency of the organic solar cells (area=0.16 cm) formed based on the fullerene derivatives of the present invention with less pollution and lower cost in fabrication can be achieved in the present invention.