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:
Jan. 31, 2012
Filed:
Mar. 21, 2007
Henry J. Snaith, Sawston, GB;
Shaik Mohammad Zakeeruddin, Renens, CH;
Michael Graetzel, St-Sulpice, CH;
Henry J. Snaith, Sawston, GB;
Shaik Mohammad Zakeeruddin, Renens, CH;
Michael Graetzel, St-Sulpice, CH;
Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH;
Abstract
The present invention relates to optoelectronic and/or electrochemical devices comprising an organic charge transporting material which is liquid at a temperature of ≦180° C. In particular in dye-sensitised solar cells, quantum efficiency higher than with prior art solid organic hole-transporters is reported. The melting point of a large quantity of organic charge transporting materials may be adjusted to a desired value by selecting suitable substituents. Accordingly, general advantages of the liquid state may be associated with the properties of organic charge transporting materials.