抄録
Rotation of a horizontal cylinder is proposed as a new method to realize effectively-reduced gravitational environment, which suppresses the convective mass transport during crystal growth from vapor. Numerical calculations were carried out in order to evaluate the effect of this method. The reduction of Sherwood number (Sh) was confirmed and a characteristic feature of this method, the transient increases of flow velocity accompanied by the transition from the boundary-layer driven regime (BLDR) to the core-driven regime (CDR), was found . Crystal growth of ZnSe by chemical vapor transport method (CVT) using iodine as a transport agent was carried out in order to demonstrate the effect. The experimental results agree with the numerical prediction, and stable growth of ZnSe singe crystal with a diameter of 1 inch was achieved.
