Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 115, Issue -, Pages 7-10Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2013.03.013
Keywords
Liquid phase; Amorphous silicon; Single sided contacted system; Loss analysis
Ask authors/readers for more resources
In this paper we present silicon heterojunction solar cells based on polycrystalline silicon (poly-Si) prepared by electron-beam induced liquid phase crystallisation. A single sided contact system has been developed to tap the full potential of the heterojunction concept. Open-circuit voltages as high as 582 mV demonstrate the high potential of poly-Si absorber material. This is supported by a high pseudo fill factor of 80.5% as determined by Suns-V-OC c measurements. The still moderate best efficiency of 5.7% can be attributed to ohmic losses due to a broken front contact grid and to short circuit current densities not exceeding 16 mA cm(-2). The latter are largely explained by the missing light-trapping scheme and by recombination losses in the absorber or at the burned SiC/Si interface. The results demonstrate that open-circuit voltages above 600 mV are in reach for poly-Si thin-film solar cells on glass, opening up exciting perspectives towards high efficiencies for a new type of potentially low cost silicon based thin-film solar cells. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available