Journal
THIN SOLID FILMS
Volume 516, Issue 20, Pages 6984-6988Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.12.114
Keywords
polycrystalline silicon; thin-film solar cell; aluminium-induced crystallization; defect characterization; plasma texturing; light trapping
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Thin-film polycrystalline-silicon solar cells might become an alternative to bulk silicon solar cells if sufficiently high efficiencies can be obtained. In this work we made pc-Si layers using aluminium-induced crystallization and thermal CVD, on alumina substrates. By using plasma texturing and optimizing the cell structure, we increased the current density of our cells and achieved a cell efficiency of 8.0%. At present, our cell efficiency seems to be mainly limited by the presence in our layers of a high density of electronically active intragrain defects. Intragrain quality improvement will therefore be very important to further increase our pc-Si cell efficiency. (c) 2007 Elsevier B.V. All rights reserved.
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