An objective of the present invention is to provide a zinc oxide (ZnO) single crystal whose electroconductivity is excellent and which has a high quality. The invention relates to a zinc oxide single crystal whose concentration of metals other than zinc in the crystal fulfills the following equation: [ - cM ] / [ + cM ] ‰¥ 3 wherein M is a metal other than zinc, [-cM] is a concentration of M in a -c region in the zinc oxide crystal, and [+cM] is a concentration of M in a +c region in the zinc oxide crystal.
申请公布号
EP1616981(A4)
申请公布日期
2009.06.03
申请号
EP20040725528
申请日期
2004.04.02
申请人
TOKYO DENPA CO., LTD.;MITSUBISHI CHEMICAL CORPORATION