Nanoimprinted diffraction gratings for crystalline silicon solar cells: Implementation, characterization and simulation
Mellor A, Hauser H, Wellens C, Benick J, Eisenlohr J, Peters M, Guttowski A, Tobias I, Marti A, Luque A, Blaesi B (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 21
Pages Range: A295-A304
Journal Issue: 102
DOI: 10.1364/OE.21.00A295
Abstract
Light trapping is becoming of increasing importance in crystalline silicon solar cells as thinner wafers are used to reduce costs. In this work, we report on light trapping by rear-side diffraction gratings produced by nano-imprint lithography using interference lithography as the mastering technology. Gratings fabricated on crystalline silicon wafers are shown to provide significant absorption enhancements. Through a combination of optical measurement and simulation, it is shown that the crossed grating provides better absorption enhancement than the linear grating, and that the parasitic reflector absorption is reduced by planarizing the rear reflector, leading to an increase in the useful absorption in the silicon. Finally, electrooptical simulations are performed of solar cells employing the fabricated grating structures to estimate efficiency enhancement potential. © 2013 Optical Society of America.
Involved external institutions
Fraunhofer-Institut für Solare Energiesysteme (ISE) / Fraunhofer Institute for Solar Energy Systems
Germany (DE)
Universidad Politécnica de Madrid (UPM)
Spain (ES)
Germany (DE)
Universidad Politécnica de Madrid (UPM)
Spain (ES)
How to cite
APA:
Mellor, A., Hauser, H., Wellens, C., Benick, J., Eisenlohr, J., Peters, M.,... Blaesi, B. (2013). Nanoimprinted diffraction gratings for crystalline silicon solar cells: Implementation, characterization and simulation. Optics Express, 21(102), A295-A304. https://doi.org/10.1364/OE.21.00A295
MLA:
Mellor, Alexander, et al. "Nanoimprinted diffraction gratings for crystalline silicon solar cells: Implementation, characterization and simulation." Optics Express 21.102 (2013): A295-A304.
BibTeX: Download