By Jochen Rentsch, Fraunhofer Institute for Solar Energy Systems ISE, Freiburg, Germany; Bishal Kafle; Marc Hofmann; Katrin Krieg; Martin Zimmer
Optical confinement is essential in order to increase the amount of photogeneration in a crystalline silicon (c-Si) solar cell. Fraunhofer examines the compatible options for wafers created using diamond wire sawing.