Organic photovoltaics: Merck, Nano-C present enhanced OPV materials

Organic semiconductors are important materials for the development of cost-efficient and flexible OPV cells. Merck´s portfolio of proprietary charge transport materials is especially designed to improve bulk hetero-junction solar cells applications and other novel organic photovoltaic cells concepts.
Organic semiconductors are important materials for the development of cost-efficient and flexible OPV cells. Merck´s portfolio of proprietary charge transport materials is especially designed to improve bulk hetero-junction solar cells applications and other novel organic photovoltaic cells concepts.

Merck KGaA (Darmstadt, Germany) on August 3rd, 2015 announced, together with the US-based company Nano-C Westwood, Mass.), their development and launch of promising new fullerene derivatives for the emerging field of organic photovoltaics (OPV).

Merck is pursuing many projects to participate in the growing OPV sector, the company notes.

 

Highly stable, easy to process and cost effective derivatives

The new chemistries show a significant improvement in lifetime and thermal stability of OPV cells while increasing open circuit voltage using environmentally friendly non-halogenated solvent systems.

These new C60 based fullerene derivatives solve critical thermal degradation issues, the partners emphasize.

Using these derivatives the Merck team developed active layer formulations ready for deposition deploying a range of industrial coating techniques.

 

High-performance to shape the future of the OPV industry

"Merck KGaA is pleased to have had the opportunity to work with an exceptional development team at Nano-C. By combining Merck KGaA, Darmstadt, Germany,'s leading-edge polymer and formulation development capabilities with Nano-C's expertise and intellectual property in fullerene derivative development, the achieved results solidify our leading position,” said Richard Harding, Merck KGaA’s Global Head of Business Development – Photovoltaics.

“This will provide our customers with secure supply of high-performance materials that will shape the future of the OPV industry.”

"The OPV installation in the German Pavilion at the EXPO 2015 in Milan using materials from Merck KGaA, Darmstadt, Germany, is an example of things to come in emerging building-integrated photovoltaic (BIPV) and other areas where the unique features of OPV will stand out."

"The results of our collaborative development program point the way to a cost effective C60 based acceptor for use with low band-gap systems, offering comparable stability to C70 based fullerene derivatives in OPV," added Viktor Vejins, President and CEO of Nano-C.

"Nano-C looks forward to working with Merck KGaA, Darmstadt, Germany, to scale up these chemistries and move into the commercialization phase."

The joint development is based on intellectual property (IP) that both companies hold together.

 

2015-08-04 | Courtesy: Merck KGaA | solarserver.com © Heindl Server GmbH

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