Progress in bulk GaN growth
*
Xu Ke
a),
b)†
, Wang Jian-Feng
a),
b)
, Ren Guo-Qiang
a),
b)
(a) 2-inch and (b) 4-inch GaN crystals grown on HVPE-GaN seed crystals by Na-flux method (from Ref. [ 80 ]), (c) morphology of 2-inch coalesced GaN crystal (from Ref. [ 85 ]).