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Imec and Solvay Introduce New Organic Photovoltaic Module

Imec and the chemicals company Solvay have announced an organic photovoltaic module with a world-record certified efficiency of 5.5 percent*.

An optimum performance at module-level is a crucial step towards upscaling the production process and successful commercialization of organic photovoltaic cells. This result was achieved using a novel inverted bulk heterojunction architecture developed by imec in close collaboration with Solvay and a proprietary ActivInkTMsemiconductor from Polyera.

Organic solar cells hold the potential for integration into building facades and windows, due to their optical translucency and ability to be manufactured on large areas at high-throughput. The efficiency of organic solar cells is less dependent on the intensity and the angle of the incoming light; however, to become a relevant industrial solution, upscaling towards an industrial process is necessary, as is a further increase in performance and longer lifetime.

Organic photovoltaic modules.

Imec’s research program on organic solar cells tackles all the challenges to make the organic photovoltaic technology ready for market introduction. Imec developed a dedicated inverted bulk heterojunction architecture for polymer-based solar cells. This architecture simultaneously optimizes cell light management and increases device stability. After demonstrating excellent efficiency results at the cell level in 2011, imec and Solvay developed a process to integrate inverted bulk heterojunction solar cells in an efficient module that uses 95 percent of the aperture area to generate electricity. A module efficiency as high as 5.5 percent on a 16cm² aperture area was achieved, a world-record for organic photovoltaic modules.

Tom Aernouts, R&D group leader of organic photovoltaics at imec, noted: “We are excited to have achieved these excellent results at module level. They are an important step towards upscaling organic solar cell technology to high-volume production. With further device and module structure optimizations and optimization of the photo-active material of the cell, we will continue increasing efficiency and lifetime, which are essential advancements for developing an industry-relevant technology for organic solar cells.”

Imec’s organic photovoltaics activities are currently part of Solliance, a cross-border R&D cluster that leverages the know-how of key players in thin film solar energy technology in the Eindhoven-Leuven-Aachen triangle (ELAT region) to strengthen the position of the region as a world player in thin film photovoltaics.

*Certified by Newport

About imec

Imec performs world-leading research in nanoelectronics. Imec leverages its scientific knowledge with the innovative power of its global partnerships in ICT, healthcare and energy. Imec delivers industry-relevant technology solutions. In a unique high-tech environment, its international top talent is committed to providing the building blocks for a better life in a sustainable society. Imec is headquartered in Leuven, Belgium, and has offices in Belgium, the Netherlands, Taiwan, US, China, India and Japan. Its staff of close to 2,000 people includes more than 600 industrial residents and guest researchers. In 2011, imec's revenue (P&L) was about 300 million euro. Further information on imec can be found at www.imec.be.

Imec is a registered trademark for the activities of IMEC International (a legal entity set up under Belgian law as a "stichting van openbaar nut”), imec Belgium (IMEC vzw supported by the Flemish Government), imec the Netherlands (Stichting IMEC Nederland, part of Holst Centre which is supported by the Dutch Government), imec Taiwan (IMEC Taiwan Co.) and imec China (IMEC Microelectronics (Shangai) Co. Ltd.) and imec India (Imec India Private Limited).

About Solvay

SOLVAY is an international chemical Group committed to sustainable development with a clear focus on innovation and operational excellence. It is realizing over 90% of its sales in markets where it is among the top 3 global leaders. Solvay offers a broad range of products that contribute to improving the quality of life and the performance of its customers in markets such as consumer goods, construction, automotive, energy, water and environment, and electronics. The Group is headquartered in Brussels, employs about 31,000 people in 55 countries and generated EUR 12.7 billion in net sales in 2011 (pro forma). Solvay SA (SOLB.BE) is listed on NYSE Euronext in Brussels and Paris.

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