The recently published BINE-Projektinfo brochure "Development of high-efficiency solar cells and modules" (10/2013) describes processes that make photovoltaic modules more durable and efficient. Scientists in the SONNE research consortium are working on increasing current module outputs of around 250 watts to more than 300 watts.
As part of the joint research project SONNE a new glas-glas module has been developed. Here the rear-side glas is put on.
One method is to halve the cells using lasers. The solar cells are transported along a conveyor belt beneath a laser. This creates a rupture point on the rear side of the cells along which a mechanical cell divider separates the cells. The scientists developed their own special connection concept for the new cell size. This can be deployed with standard technology or a wire electrode. The resulting modules are more powerful than comparable modules with entire cells. The researchers calculated a gain in output of 6 Wp for a module with 245 Wp.
Metal contact lines on the solar cells close the electric circuit but do not shade the cell surface. One goal of the research project was to print contact lines that were as thin as possible. For this purpose a demonstration plant was developed and put into operation. With high-efficiency cells that were printed with 40-µm-wide lines, the efficiency increased by 0.2%.
In the SONNE project, ten companies and four research institutes are working on increasing the efficiency of modules made of crystalline silicon cells. The intention is to automate the developed production processes on an industrial scale and thus make them cheaper. SolarWorld Innovations GmbH is the project coordinator. Scientific project partners include the Fraunhofer Institute for Solar Energy Systems (ISE), the Institute for Solar Energy Research Hameln (ISFH), Chemnitz University of Technology and Mittweida University of Applied Sciences.
The BINE Projektinfo brochure, 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.Press contact
About FIZ KarlsruheFIZ 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.
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
Rüdiger Mack | idw
'Super yeast' has the power to improve economics of biofuels
18.10.2016 | University of Wisconsin-Madison
Engineers reveal fabrication process for revolutionary transparent sensors
14.10.2016 | University of Wisconsin-Madison
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences