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
New Material to Push the Boundaries of Silicon-Based Electronics
21.01.2019 | Fraunhofer-Institut für Angewandte Festkörperphysik IAF
Saving energy by taking a close look inside transistors
10.01.2019 | Friedrich-Alexander-Universität Erlangen-Nürnberg
Immune cells called macrophages are supposed to serve and protect, but cancer has found ways to put them to sleep. Now researchers at the Abramson Cancer...
The scientific and political community alike stress the importance of German Antarctic research
Joint Press Release from the BMBF and AWI
The Antarctic is a frigid continent south of the Antarctic Circle, where researchers are the only inhabitants. Despite the hostile conditions, here the Alfred...
World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.
In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...
Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.
It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:
16.01.2019 | Event News
14.01.2019 | Event News
12.12.2018 | Event News
22.01.2019 | Materials Sciences
22.01.2019 | Health and Medicine
22.01.2019 | Health and Medicine