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German research institution is offering ultrashort pulse laser ablation for the functionalisation of surfaces

Country of Origin: Germany
Reference Number: TODE20190423001
Publication Date: 21 April 2021

Summary

A German research institution with a focus on energy related technologies is working on surface modification using ultrashort pulse lasers. Partners interested in functionalised surfaces for any application and materials are welcome to test the technology.

Description

Founded over 200 years ago, the university operates one of the most prestigious technological institutes in Germany. The university has a special focus on engineering. 
The research group is working in the field of energy related technologies, with a special focus on functionalization of materials.
The research group modifies surfaces already in a technical scale.
Future field of interest include efficient heat transfer, optimization of light absorption, highly active catalysts and hydrophobic surfaces. Other possible applications include, but are not limited to the surface structuring for several functionalised products, such as self-cleaning shell finish.

Advantages and Innovations

Technology: 

An ultrashort pulse laser process modifies the structure of different surfaces. New material properties can be implemented, depending on the laser parameters. Properties such as:

- structure depth, roughness
- the chemical composition
- wettability
- heat and fluid transfer

can be controled.

Any material including

- metals (steel, aluminium, copper, nickel)
- semiconductor
- polymers (e.g. acrylic glass)

are processed.

In a current application metal surfaces are modified in the nano and micro structure using femtosecond laser ablation. Those mechanical stable and larger surfaces are especially interesting for the usage as electrocatalyst. During the laser process, elements from the process environment can be incorporated. For example, Nickel and Copper electrodes can be alloyed on the surface with further catalytic active elements from the process ambient.

In this manner, iron alloyed nickel electrodes features an increased electrochemival activity in the alkali water electrolysis. An alloyed copper electrode features an increased activity during the electrochemical reduction of carbon dioxide. This innovative method can also be transfered to other catalytic surface reactions on various substrate matrices. With this technique, a very low amount of precious catalyst elements is used.

Stage Of Development

Under development/lab tested

Requested partner

They are looking for a partner to implement the surface modification technology using ultra short pulse lasers under license agreement, research cooperation agreement or technical cooperation agreement.

Cooperation offer ist closed for requests