Abstract
A transient global model was used to investigate the effect of bottom grooved furnace upon the directional solidification (DS) process of multicrystalline silicon (mc-Si). The computations were carried out on a 2D axisymmetric model using the finite volume method. The temperature distribution, crystal-melt (c-m) interface and dislocation density were simulated. The modified heat exchanger block system was used for controlling the temperature gradient at the bottom of the crucible. The obtained results shows convex shape of the c-m interface. The dislocation density was reduced while using the bottom grooved furnace. This work was carried out for the different groove of radius 30 and 60 mm of the heat exchanger block.
Published Version
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