New manufacturing concept lowers costs
The development of photovoltaics is far from over. The prices are dropping and their external appearance today ranges from textiles furnished with thin-film cells to large-scale free-standing plants based on silicon. Progress is also being made with the technology.
New multi-junction solar cell with focusing optics
(© AZUR Space)
The BINE-Projektinfo brochure “Energy from a thousand suns” (02/2014) presents modules made of multi-junction solar cells, which are combined with optical concentrator systems and track the sun. This concept focuses the sunlight by up to a thousand times and a solar cell has reached a record efficiency of 44.7% in the laboratory.
With multi-junction solar cells, layers of different semiconductor materials are stacked on top of one another. The current standard is the triple-junction cell that consists of three sub-cells. Each of them can convert a different spectral range of the incident sunlight into electricity. The entire cell reaches its high performance through the interaction of the sub-cells.
Because it is complex and expensive to manufacture multi-junction solar cells, the cells are still combined with focussing optical systems. For this purpose, comparatively cheap mirror systems or Fresnel lenses are deployed. This results in highly efficient modules at competitive prices, which are particularly suitable for regions with a high proportion of direct solar irradiance.
The research project is being conducted by the Fraunhofer Institute for Solar Energy Systems (ISE) together with partners from industry. An industrial production plant for these cells has now commenced operation.
The BINE-projectinfobrochure, which can be obtained free of charge from the BINE Information Service at FIZ Karlsruhe, is available online at www.bine.info or by calling +49 (0)228 92379-0.
About BINE Information Service
Energy research for practical applications
The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
http://www.bine.info/en/press/press-releases/press/pressemitteilung/photovoltaik... - Download cover, press release and info-pdf
http://www.bine.info/en - BINE Informationsdienst english
Rüdiger Mack | idw - Informationsdienst Wissenschaft
Did you know that UV light helps to ensure safe bathing during the summer months?
25.07.2016 | Heraeus Noblelight GmbH
Making magnets flip like cats at room temperature
21.07.2016 | Johannes Gutenberg-Universität Mainz
Researchers at the U.S. Department of Energy's (DOE) Ames Laboratory have discovered an unusual property of purple bronze that may point to new ways to achieve high temperature superconductivity.
While studying purple bronze, a molybdenum oxide, researchers discovered an unconventional charge density wave on its surface.
Munich Physicists have developed a novel electron microscope that can visualize electromagnetic fields oscillating at frequencies of billions of cycles per second.
Temporally varying electromagnetic fields are the driving force behind the whole of electronics. Their polarities can change at mind-bogglingly fast rates, and...
Breakup of continents with two speed: Continents initially stretch very slowly along the future splitting zone, but then move apart very quickly before the onset of rupture. The final speed can be up to 20 times faster than in the first, slow extension phase.phases
Present-day continents were shaped hundreds of millions of years ago as the supercontinent Pangaea broke apart. Derived from Pangaea’s main fragments Gondwana...
Scaffolding and specialised workers help with the delivery – Heidelberg biochemists gain new insights into biogenesis
A type of scaffolding on which specialised workers ply their trade helps in the manufacturing process of the two subunits from which the ribosome – the protein...
Scientists at the Helmholtz Zentrum München have developed a new mass spectrometry imaging method which, for the first time, makes it possible to analyze hundreds of metabolites in fixed tissue samples. Their findings, published in the journal Nature Protocols, explain the new access to metabolic information, which will offer previously unexploited potential for tissue-based research and molecular diagnostics.
In biomedical research, working with tissue samples is indispensable because it permits insights into the biological reality of patients, for example, in...
15.07.2016 | Event News
15.07.2016 | Event News
11.07.2016 | Event News
25.07.2016 | Physics and Astronomy
25.07.2016 | Materials Sciences
25.07.2016 | Materials Sciences