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1. (WO2018203279) INORGANIC HOLE CONDUCTOR BASED PEROVSKITE PHOTOELECTRIC CONVERSION DEVICE WITH HIGH OPERATIONAL STABILITY AT LONG TERM

Pub. No.:    WO/2018/203279    International Application No.:    PCT/IB2018/053090
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri May 04 01:59:59 CEST 2018
IPC: H01L 51/42
Applicants: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
Inventors: ARORA, Neha
DAR, Mohammad Ibrahim
ZAKEERUDDIN, Shaik Mohammed
GRAETZEL, Michael
Title: INORGANIC HOLE CONDUCTOR BASED PEROVSKITE PHOTOELECTRIC CONVERSION DEVICE WITH HIGH OPERATIONAL STABILITY AT LONG TERM
Abstract:
The invention relates to an optoelectronic and/or photoelectrochemical device comprising a conductive support layer, n-type semiconductor, a sensitizer or light-absorber layer, a hole transporting layer, a spacer layer and a back contact, wherein the n-type semiconductor is in contact with the sensitizer or light-absorber layer, the sensitizer or light-absorber layer comprises a perovskite or metal halide perovskite material, the hole transporting layer is in direct contact with the sensitizer or light-absorber layer and comprises an inorganic hole transporting material or inorganic p-type semiconductor, the spacer layer is between the hole transporting layer and the back contact and comprises a material being different from the inorganic hole transporting material and the material of the back contact.