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Ceracomb Co., Ltd., Asan 336-120, Korea*Department of Advanced Science and Engineering, Hanseo, University, Seosan 356-820, Korea(Received January 30, 2015)(Revised February 6, 2015)(Accepted February 11, 2015)Abstract For the special usage, the effort of developing AlN single crystals has been very hot in the world. The AlN-base UV LEDs are used on the field of sterilization, purification, curing and analyzing, which can advance human’s livingand medical processes etc.. AlN single crystals were grown by the PVT (Physical vapor transport) method. On the growingprocess, carbon crucibles with three different types such as normal size, taller than normal and wider than normal wereused for comparison. The processing temperature was in the range of 1900~2100

A study on the dependance of crucible dimension on AlN single crystal growth