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Multi-crystalline silicon ingots produced by directional solidification systems (DSS)represent the best way to obtain crystalline silicon at low prices and with high throughputs.The DSS technology is widespread among PV silicon ingot producers and hundreds of furnaces are manufactured worldwide every year.Nowadays the major challenge for multi-crystalline silicon is to increase the quality of ingot and to reduce operation cost of DSS process.This goal to improve quality can be achieved by changing the present standard DS process to high performance multi crystalline ingot growth process or mono-like-casting process.Both approaches will ask for additional improvement or adjustment of hot zone and casting process.This reason has pushed some companies to develop new DSS furnaces able to realize such kind of goal.The main features and the characteristic design of the hot-zone in the iDSS (induction DSS) furnace are taken into account,especially in comparison with the standard DSSs ones.In the innovative iDSS furnace,three independent hot zones are provided.The lateral induction coil system is equipped with independent turns connections and it can be used to heat selectively-at different vertical positions-the most suitable thermal condition,so you can get a better control of solid-liquid interface shape,High top and side heating power enable a faster melting process and wider temperature gradient range for melted silicon.Tunable bottom cooling rate suitable for proper undercooling needed for high-performance mc-Si & next generation of mono-like.Side induction coil can also be used to do electro-magnetic stirring to remove impurities of interface more effectively.In this paper,the authors will present some results obtained with the iDSS furnace in cooperation with some partners.