Karlsruher Institut Fur Technologie

Osram Oled Gmbh

Uli Lemmer

Martina Gerken

Alexander Colsmann

Sebastian Valouch

Julian Hauss

Md Mofasser Mallick

Soenke Klinkhammer

Johannes Bach

Stefan Höfle

Boris Riedel

Andres Rösch

Leonard Franke

Manuel Reinhard

Thomas Woggon

The present invention relates to an ink composition comprising a precursor material for a thermoelectric material, a precursor material for an inorganic binder comprising a mixture of Cu, Se and optionally S powder, an organic solvent and an organic binder. The present invention also relates to a Cu—Se—S-based ink composition for printable thermoelectric materials, comprising a mixture of Cu, Se and S powders. Furthermore, the present invention relates to a flexible printed thermoelectric material obtainable by printing the ink of the present invention. The present invention further relates as well as to a flexible printed high power density thermoelectric generator, heat flux sensor and thermoelectric cooler comprising the flexible printed thermoelectric material and its use, particularly for large scale applications. Further, the present invention also relates to a method for producing the flexible printed thermoelectric material.

Ink composition for printable thermoelectric materials

A method of producing an optoelectronic device includes A) providing a substrate, B) applying a first electrode to the substrate, C) applying a first organic layer stack to the first electrode, D) producing a charge-generating layer stack on the first organic layer stack, E) applying a second organic layer stack to the charge-generating layer stack, and F) applying a second electrode to the second organic layer stack, wherein step D) includes D1) applying a solution of a first metal oxide precursor to the first organic layer stack, D2) generating a first charge-generating layer comprising a first metal oxide, D3) applying a solution of a second metal oxide precursor to the first charge-generating layer, and D4) generating a second charge-generating layer comprising a second metal oxide.

Method of producing an optoelectronic device and optoelectronic device

A charge-carrier transport layer for an electro-optical component includes an organic charge-carrier transport material. A plurality of first particles having a diameter ranging from 1 nm to 100 nm is incorporated in the organic charge-carrier transport material and contains a first transparent oxide. A plurality of second particles having a diameter between 100 nm and 1000 nm is also incorporated into the organic charge-carrier transport material and contains a second transparent oxide. The index of refraction of the plurality of second particles differs from the index of refraction of the organic charge-transport material.

Charge-carrier transport layer for an electro-optical component, method for its production and electro-optical component

A tunable laser light source having emission wavelengths in a visible or an adjoining spectral region includes a rotationally disposed laser substrate having more than one emission wavelength, a drive unit coupled to the laser substrate, a pulsed light source having a pulse transmitter, a trigger device, and a signal-delay unit. The trigger device, the signal-delay unit and the pulse transmitter are sequentially connected downstream of the drive unit.

Tunable laser light source based on variable optical pulse excitation and method for operating same

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Karlsruhe, Germany

Uli Lemmer