Invention Grant
- Patent Title: Method for inkjet printing an organic-inorganic perovskite
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Application No.: US16322708Application Date: 2017-08-02
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Publication No.: US11177440B2Publication Date: 2021-11-16
- Inventor: Syed Ghufran Hashmi , Merve Ozkan , David Martineau , Xiong Li , Shaik Mohammed Zakeeruddin , Michael Graetzel
- Applicant: AALTO UNIVERSITY FOUNDATION , ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) , SOLARONIX S.A.
- Applicant Address: FI Helsinki; CH Lausanne; CH Aubonne
- Assignee: AALTO UNIVERSITY FOUNDATION,ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL),SOLARONIX S.A.
- Current Assignee: AALTO UNIVERSITY FOUNDATION,ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL),SOLARONIX S.A.
- Current Assignee Address: FI Helsinki; CH Lausanne; CH Aubonne
- Agency: Dann, Dorfman, Herrell & Skillman
- Agent Robert C. Netter, Jr.
- Priority: EP16182460 20160802
- International Application: PCT/EP2017/069543 WO 20170802
- International Announcement: WO2018/024777 WO 20180208
- Main IPC: H01L51/42
- IPC: H01L51/42 ; H01L51/00

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.
Public/Granted literature
- US20200028081A1 Method for Inkjet Printing an Organic-Inorganic Perovskite Public/Granted day:2020-01-23
Information query
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