Ecole Polytechnique Federale De Lausanne

Solvay Sa

Osram Gmbh

Universitat Basel

Universitat De Valéncia

Etienne Baranoff

Frank Vollkommer

Michael Graetzel

Mohammad Khaja Nazeeruddin

Shaik Mohammad Zakeeruddin

David Hartmann

Florian Kessler

Shaik Mohammed Zakeeruddin

Jürgen Bauer

Julian Burschka

Fabrizio Giordano

Anders Hagfeldt

Wiebke Sarfert-Gast

Marina Freitag

Jun-Ho Yum

Aswani Yella

Hoi Nok Tsao

Hendrik Jan Bolink

David Vonlanthen

Sebastian Meier

Nail Malikovich Shavaleev

Edwin Constable

Daniel Tordera Salvador

Antonio Pertegas Ojeda

Enrique Orti

Manuel Delgado

The invention relates to electrochemical devices comprising complexes of cobalt comprising at least one ligand with a 5- or six membered, N-containing heteroring. The complex are useful as p- and n-dopants, as over of electrochemical devices, in particular in organic semiconductors. The complexes are further useful as over-discharge prevention and overvoltage protection agents.

Metal complexes for use as dopants and other uses

The present invention provides an improved redox couple for electrochemical and optoelectronic devices. The redox couple is based on a complex of a first row transition metal, said complex containing at least one mono-, bi-, or tridentate ligand comprising a substituted or unsubstituted ring or ring system comprising a five-membered N-containing heteroring and/or a six-membered ring comprising at least two heteroatoms, at least one of which being a nitrogen atom, said five- or six-membered heteroring, respectively, comprising at least one double bond. The invention also relates to electrolytes and to the devices containing the complex, and to the use of the complex as a redox couple. The invention further provides electrochemical and/or optoelectronic devices comprising a first and a second electrode and, between said first and second electrode, a charge transport layer, said a charge transport layer comprising tetracyanoborate ([B(CN)]) and a cationic metal complex functioning as redox-couple.

Redox couple for electrochemical and optoelectronic devices

Disclosed is a metal complex having a partial structure represented by the following Formula (I-0) or a tautomer thereof: formula (I-0) Cy is a 5 to 7 membered heterocyclic ring, preferably a 6-membered ring, which may be aromatic, non aromatic or partially aromatic and which coordinates to the metal atom through a carbon atom; A is a nitrogen atom a is an integer equal or superior to 1; D is an electron donor group; and b is an integer equal or superior to 1. 

Metal complex comprising a ligand having a combination of donor-acceptor substituents

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Etienne Baranoff