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:
Nov. 16, 2021
Filed:
Aug. 02, 2017
Aalto University Foundation, Helsinki, FI;
Ecole Polytechnique Federale DE Lausanne (Epfl), Lausanne, CH;
Solaronix S.a., Aubonne, CH;
Syed Ghufran Hashmi, Espoo, FI;
Merve Ozkan, Helsinki, FI;
David Martineau, St-Prex, CH;
Xiong Li, Lausanne, CH;
Shaik Mohammed Zakeeruddin, Bussigny, CH;
Michael Graetzel, Sulpice, CH;
AALTO UNIVERSITY FOUNDATION, Helsinki, FI;
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), Ecublens, CH;
SOLARONIX S.A, Aubonne, CH;
Abstract
The present invention provides a method for depositing an organic-inorganic perovskite, the method comprising the step of depositing a perovskite precursor solution comprising one or more organic cation, wherein said precursor solution preferably deposited by inkjet printing. The method is particularly useful in the manufacture of perovskite solar cells. For depositing the perovskite, a perovskite precursor solution or ink is preferably used, which comprises an organic cation carrying an anchoring group, such as 5-ammonium valeric acid. Surprisingly, the presence of the latter compound renders the precursor solutions stable and suitable for inkjet printing.