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Square-like Silicon Crystal Rod Growth by FZ Method with ...

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Fig. 10. Vertical position of crystallization interface for I 0 = 700 A, V crcr = 1 mm/min,<br />

crystal height 50 mm.<br />

Conclusions<br />

The growth of square-shaped single silicon rods in <strong>FZ</strong> process <strong>with</strong>out crystal rotation<br />

is realized in Institute for <strong>Crystal</strong> <strong>Growth</strong> (Berlin, Germany). This opens new prospects of<br />

material development for cost-effective, high-efficiency solar cells. The supporting system of<br />

mathematical models and specialised program Shape3D are developed and have successfully<br />

contributed to the experiments.<br />

References<br />

[1] Annual Report 2004/05, Institute for <strong>Crystal</strong> <strong>Growth</strong>, Berlin, Germany. www.ikz-berlin.de<br />

[2] G. Ratnieks, A. Muiznieks, A. Mühlbauer. Modelling of phase boundaries for large industrial <strong>FZ</strong> silicon<br />

crystal growth <strong>with</strong> the needle-eye technique. J. <strong>Crystal</strong> <strong>Growth</strong>, Vol. 255 (2003), pp. 227-240.<br />

Authors<br />

Dr.-Phys. Muiznieks, Andris<br />

Ms.-comp. Rudevics, Andis<br />

Ms.-Phys. Lacis, Kaspars<br />

Faculty of Physics and Mathematics<br />

University of Latvia<br />

Zellu str. 8<br />

LV-1002 Riga, Latvia<br />

E-mail: andris.muiznieks@lu.lv<br />

Dr.-Phys. Riemann, Helge<br />

Dr.-Phys. Lüdge, Anke<br />

Institute for <strong>Crystal</strong> <strong>Growth</strong><br />

Max-Born-Str. 2<br />

D-12489 Berlin, Germany<br />

E-mail: riemann@ikz-berlin.de<br />

Prof., Dr.-Ing. Nacke, Bernard<br />

Institute for Eletctrothermal Processes<br />

University of Hanover<br />

Wilhelm-Busch Str. 4<br />

D-30167 Hanover, Germany<br />

E-mail: nacke@ewh.uni-hannover.de<br />

Schulze, Friedrich-Wilhelm<br />

PV <strong>Silicon</strong> AG<br />

Wilhelm-Wolff-Str. 25<br />

D-99099 Erfurt, Germany,<br />

E-mail:<br />

schulze@pvsilicon.com<br />

94

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