Recently NexWafe GmbH was spun out of the Fraunhofer Institute for Solar Energy Systems ISE, in order to bring the Institute’s kerfless EpiWafer technology to the market and rapid commercialization.
In the EpiWafer technology, a thick crystalline silicon layer is epitaxially deposited and subsequently detached after growth to produce a freestanding wafer of standard thickness.
Due to the radical changes in the manufacturing value chain, EpiWafers can be produced at an appreciably lower cost compared to the traditional wafer manufacturing process. The EpiWafer is a direct substitute for conventional n- or p-doped silicon mono-crystalline wafers.
Now, Fraunhofer ISE reports on substantial progress in the development of its EpiWafers, which are seen as a drop-in replacement for conventional Cz wafers. Fraunhofer ISE’s research team in co-operation with NexWafe has optimized all production steps for the EpiWafer.
Analysis of the new n-doped EpiWafers shows that mean minority carrier lifetimes are above 1000 µs, indicating the same quality as n-type Cz wafers. Solar cells processed on these EpiWafers yield 20% efficiency, independently confirmed at the Fraunhofer ISE CalLab. “I am elated about this fantastic result,” says Dr. Stefan Janz, Head of the Department of Silicon Materials.
“This success attests to our fast progress made in only a few months since focusing on EpiWafers.” The solar cells achieve a short-circuit current of 39.6 mA/cm2, a world-record value for epitaxially grown silicon solar cells. The new results will be presented during the coming European PVSEC in Hamburg.
Dr. Stefan Reber, CEO of NexWafe, is also very excited about the new results: “These values demonstrate that our EpiWafer technology is a game-changing technology. It accelerates the shift of the market towards high efficiency modules by providing high quality drop-in mono-crystalline EpiWafers at a very competitive price.”
More information on NexWafe : http://www.nexwafe.com
Contact Person for further information:
Dr. Stefan Janz
Phone +49 761 4588-5261
Dr. Stefan Reber
Phone +49 761 7661 18600
Karin Schneider | Fraunhofer-Institut für Solare Energiesysteme ISE
Stanford researchers develop a new type of soft, growing robot
21.07.2017 | Stanford University
Team develops fast, cheap method to make supercapacitor electrodes
18.07.2017 | University of Washington
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy