부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.solmat.2005.09.025 Byline: P.J. Verlinden (a), A.W. Blakers (b), K.J. Weber (b), J. Babaei (b), V. Everett (b), M.J. Kerr (a), M.F. Stuckings (a), D. Gordeev (a), M.J. Stocks (a) Keywords: Silicon; Monocrystalline; Thin; Lambertian reflector; Micromachining Abstract: A new technique for producing thin single-crystal silicon solar cells has been developed. The new technology allows for large decreases in silicon usage by a factor of 12 (including kerf losses) compared to conventional crystalline silicon wafer technologies. The new Sliver.sup.[R] cell process uses a micromachining technique to form 60[mu]m-thick solar cells, fully processed while they are still supported by the silicon substrate at the edge of the wafer. The Sliver.sup.[R] solar cells are capable of excellent performance due to their thickness and unique cell design with demonstrated efficiencies over 19.3% and open-circuit voltages of 683mV. In addition, the cells are bifacial (accepts light from either sides) and very flexible. Several prototype modules have been fabricated using a new design approach that introduces a diffuse reflector to the rear of a bi-glass module. To save expensive silicon material, a significant gap is kept between cells. The light striking between cells is scattered from the rear reflector and is directed onto the rear surface of the bifacial Sliver.sup.[R] cells. Module efficiency of 13% (AM1.5, 25C) has been demonstrated with a module presenting a 50% solar-cell coverage fraction, and 18.3% with a 100% Sliver.sup.[R] cell coverage fraction. Author Affiliation: (a) Origin Energy Solar, G.P.O Box 1097, Adelaide, SA 5001, Australia (b) Centre for Sustainable Energy Systems, ANU, Canberra, ACT 0200, Australia Article History: Received 24 May 2005; Accepted 22 September 2005