Service offers

 

Printed thermoelectrics

Am Fraunhofer IWS Dresden werden thermoelektrische Materialien für Druckprozesse entwickelt und hinsichtlich ihrer thermoelektrischen Eigenschaften optimiert. Elektrisch leitfähige Polymere stellen aufgrund ihrer Eigenschaften eine interessante Materialklasse für die flexible Thermoelektrik dar.

 

3D dispenser printing and laser sintering

3D dispenser printing is a computer- controlled method with which a paste is applied to a substrate through a needle according to specified sizes and shapes (CAD). The applied material is dried and sintered on demand.
 

Aerosoljet printing

Our expertise is the development of functional inks and pastes along with printing and sintering technologies for best results in high-resolution Aerosol Jet®-printing. On this basis we are able to apply a variety of materials such as metals, semiconductors, polymers or dispersions containing nanoparticles on two- or three-dimensional objects.
 

Material development and rheological characterization

The fabrication of stable and rheologically optimized dispersions is necessary for the synthesis of printable pastes and inks for various applications. Therefore we combine metallic, semimetallic or ceramic micro- and nanomaterials with different polymer binder systems and additives to optimize the degree of dispersion and rheological characteristics.
 

Large area deposition of conducting and insulating layers at atmospheric pressure

Thin layers are applied on planar substrates using spray-pyrolysis processes. By this means homogeneous layers with excellent properties, e.g. consisting of doped aluminum or zinc oxide, can be deposited.
 

Characterization of thermoelectric materials

The Printing Team at Fraunhofer IWS uses high precision metrology to determine electrical properties of different materials. Electric conductivity and the Seebeck coefficient of layer and bulk materials can be measured between room temperature and 900 K.