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Nanoscale structural investigation of Zn1–x Mg x O alloy films on polar and nonpolar ZnO substrates with different Mg contentsProject supported by the National Natural Science Foundation of China (Grant No. 11804050).
Chinese Physics B ( IF 1.7 ) Pub Date : 2021-09-03 , DOI: 10.1088/1674-1056/ac11e1
Xin Liang 1 , Hua Zhou 2 , Hui-Qiong Wang 1, 3 , Lihua Zhang 4 , Kim Kisslinger 4 , Junyong Kang 1
Affiliation  

Zn1–x Mg x O alloy films are important deep ultraviolet photoelectric materials. In this work, we used plasma-assisted molecular beam epitaxy to prepare Zn1–x Mg x O films with different magnesium contents on polar (0001) and nonpolar ($10\bar{1}0$) ZnO substrates. The nanoscale structural features of the grown alloy films as well as the interfaces were investigated. It was observed that the cubic phases of the alloy films emerged when the Mg content reached 20% and 37% for the alloy films grown on the (0001) and ($10\bar{1}0$) ZnO substrates, respectively. High-resolution transmission electron microscopy images revealed cubic phases without visible hexagonal phases for the alloy films with more than 70% magnesium, and the cubic phases exhibited three-fold and two-fold rotations for the alloy films on the polar (0001) and nonpolar ($10\bar{1}0$) ZnO substrates, respectively. This work aims to provide references for monitoring the Zn1–x Mg x O film structure with respect to different substrate orientations.



中文翻译:

不同Mg含量的极性和非极性ZnO衬底上Zn1-x Mg x O合金薄膜的纳米级结构研究国家自然科学基金项目(批准号:11804050)。

Zn 1– x Mg x O合金薄膜是重要的深紫外光电材料。在这项工作中,我们使用等离子体辅助分子束外延在极性 (0001) 和非极性 ( ) ZnO 衬底上制备了具有不同镁含量的Zn 1- x Mg x O 薄膜。研究了生长的合金膜的纳米级结构特征以及界面。观察到,当镁含量达到 20% 和 37% 时,合金膜的立方相出现在(0001)和(0001)和( $10\bar{1}0$$10\bar{1}0$) ZnO 衬底,分别。高分辨率透射电子显微镜图像显示,镁含量超过 70% 的合金膜为立方相,没有可见的六方相,并且立方相在极性 (0001) 和非极性合金膜上表现出三倍和两倍的旋转。 ( $10\bar{1}0$) ZnO 衬底,分别。本工作旨在为监测不同衬底方向的Zn 1- x Mg x O 薄膜结构提供参考。

更新日期:2021-09-03
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