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中文摘要：
本文采用水热法，以3mol／L KOH为矿化剂，填充度35％，温度430℃，通过添加适量比例的MgCl2·7H2O和CaO，合成了非极性生长的ZnO晶体。当Mg^2＋：Zn^2＋=2％和Ca^2＋：Zn^2＋=2～3％时，晶体c轴方向生长速度明显减弱，{0001}方向的极性生长得到控制，所合成的晶体大面积显露正极面＋c{0001}，同时显露负极面-c{1001}、正锥面＋p{1011}、负锥面-p{1011}和柱面m{1010}。X光能谱（EDS）没有检测到晶体中含有碱土金属离子。
英文摘要：
In this paper, nonpolar ZnO crystals were synthesized by hydrothermal method with mineralizer of 3mol/L KOH and proper MgCl2·7H2O/ CaO, the fill factor of 35%, and reaction temperature of 430℃. When Mg^2＋ ：Zn^2＋ =2% and Ca^2＋ ：Zn^2＋ =2-3% ,the rate of growth along c-axic was weakened obviously. The obtained ZnO crystals can expose more area on the positive polar face c {0001} t. And it also exposed negative polar -c{ 1000 } t , positive pyramidal face ＋ p {1011} t , negative pyramidal face -p{1011} and hexagonal faces m {1010}. The content of Mg^2＋ 、Ca^2＋ ions in the crystals is surveyed with X-ray energy spectrum, there are no Mg^2＋ and Ca^2＋ ions in ZnO crystals.
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