Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Kaneka and imec develop high-efficiency heterojunction silicon solar cells with copper electroplating

28.11.2011
At the 21st International Photovoltaic Science and Engineering Conference, held on November 28th – December 2nd in Fukuoka, Japan, Kaneka and imec present silver-free heterojunction silicon solar cells.

The results were obtained by applying copper electroplating technology, which was developed by Kaneka based on imec’s existing copper electroplating technology, A conversion efficiency of more than 21% was achieved (*) in 6-inch silicon substrates with an electroplated copper contact grid on top of the transparent conductive oxide layer.

Today, silver screen printing is the technology of choice for the realization of the top grid electrode in heterojunction silicon solar cells. The difficulty of lowering resistivity and thinning the metal line in silver screen printing prevents from achieving high efficiency and low cost. In the presented silver-free approach, the screen-printed silver is replaced by electroplated copper. Formation of top grid electrode with copper-electroplating in hetero-junction silicon solar cells is the world first result. Copper-electroplating is an economical and industry-proven process. This solution not only overcomes the disadvantages of the silver screen printing, but provides advantages such as enabling higher efficiencies and reducing fabrication costs.

These results showing beyond 21% conversion efficiency in heterojunction silicon solar cells based on imec’s copper electroplating know how were obtained in a bilateral collaboration between Kaneka Corporation and imec in Leuven (Belgium). Kaneka’s Photovoltaics European Laboratory is located at the imec campus in Leuven (Belgium), giving access to imec’s state-of-the-art PV infrastructure and enabling close interaction between imec and Kaneka researchers. The collaboration between Kaneka and imec comprises the improvement of Kaneka’s thin-film solar cells and the development of next-generation heterojunction cells.

(*) Measured in imec

http://www2.imec.be/be_en/press/imec-news/imeckanekaelectroplatingpv.html

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 about 1,900 people includes more than 500 industrial residents and guest researchers. In 2010, imec's revenue (P&L) was 285 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 Kaneka
Kaneka Corporation was established in 1949 as a spin-off from the Kanegafuchi Spinning Co., Ltd. It is headquartered in Osaka, Japan and employs about 7,300 people worldwide (including consolidated subsidiaries). Kaneka’s activities span a broad spectrum of markets ranging from photovoltaics, plastics, EPS resins, chemicals and foodstuffs to pharmaceuticals, medical devices, electrical and electronic materials and synthetic fibers. Kaneka has subsidiaries in Belgium, the United States, Singapore, Malaysia, China, Australia and Vietnam.
Further information on Kaneka can be found at
http://www.kaneka.co.jp/kaneka-e/
Contact:
Hanne Degans, External Communications Officer, T: +32 16 28 17 69, Mobile: +32 486 065 175, Hanne.Degans@imec.be
Public Relations Office
Manger Yoshito Miyakawa
+81 66226 5019

Katrien Marent | alfa
Further information:
http://www.imec.be
http://www.kaneka.co.jp/en

Further reports about: Photovoltaic building block electronic material solar cells

More articles from Power and Electrical Engineering:

nachricht Waste from paper and pulp industry supplies raw material for development of new redox flow batteries
12.10.2017 | Johannes Gutenberg-Universität Mainz

nachricht Low-cost battery from waste graphite
11.10.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>