Merck Patent Gmbh

Hiromi Shinohara

Kentaro Kawata

Hiroki Yoshizaki

Peer Kirsch

Nikolai (Mykola) Ignatyev

Michael Schulte

Walter Frank

Maik Finze

Elvira Montenegro

Heinrich Becker

Tomohisa Goto

Emil Ferdinand Aust

William-Robert Pitner

Jan Sprenger

Atsushi Sawada

Peter Kirsch

William Robert Pitner

Jan Sprener

The invention relates to 2,2',7,7&#x2032;-tetrakis-(N,N&#x2032;-di-4-methoxy-3-methylphenylamine)-9,9&#x2032;-spirofluorene, to a process for its preparation, and to its use as hole transport material for electronic or optoelectronic devices, especially for solid-state dye-sensitized solar cells.

Hole transport material

The present invention relates to the use of at least one tertiary amine-N-oxide of formula I as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I.

Additives for dye-sensitized solar cells

The present invention relates to compounds containing perfluoroalkyl-cyano-alkoxy-borate anions or perfluoroalkyl-cyano-alkoxy-fluoro-borate anions, ((per)fluoro)phenyl-cyano-alkoxy-borate anions or ((per)fluoro)phenyl-cyano-alkoxy-fluoro-borate anions or phenyl-cyano-alkoxy-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms or phenyl-cyano-alkoxy-fluoro-borate anions which are monosubstituted or disubstituted with perfluoroalkyl groups having 1 to 4 C atoms, the preparation thereof and the use thereof, in particular as part of electrolyte formulations for dye sensitized solar cells.

Compounds containing perfluoroalkyl-cyano-alkoxy-borate anions or perfluoroalkyl-cyano-alkoxy-fluoro-borate anions

The present invention relates to electrolyte formulations comprising at least one compound of formula (I) M[B(R)(CN)(F)]&#x2014; (I) in which Ma+ is an inorganic or organic cation, Rdenotes straight-chain or branched perfluoroalkyl groups having 1 to 4 C atoms, CF, CH, partially fluorinated phenyl or phenyl which is monosubstituted or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms, a is 1 or 2, x is 1, 2 or 3, y is 0, 1 or 2 and x+y is 3 and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a capacitor, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.

Electrolyte formulations

The present invention relates to electrolyte formulations comprising at least one imidazolium difluorodicyanoborate or pyrrolidinium difluorodicyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot-sensitized solar cell.

Electrolyte Formulations

Growing community of inventors

Kanagawa Pref., Japan

Hiromi Shinohara