Formation behavior of BexZn1-xO alloys grown by plasma-assisted molecular beam epitaxy

被引：38

作者：

Chen, Mingming ^{[1
]}

Zhu, Yuan ^{[1
]}

Su, Longxing ^{[1
]}

Zhang, Quanlin ^{[1
]}

Chen, Anqi ^{[1
]}

Ji, Xu ^{[1
]}

Xiang, Rong ^{[1
]}

Gui, Xuchun ^{[1
]}

Wu, Tianzhun ^{[1
]}

Pan, Bicai ^{[2
,3
]}

Tang, Zikang ^{[1
,4
]}

机构：

[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[4] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 20期

基金：

美国国家科学基金会;

关键词：

OPTICAL-PROPERTIES; BEZNO; FILMS;

D O I：

10.1063/1.4807605

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the phase formation behavior of BexZn1-xO alloys grown by plasma-assisted molecular beam epitaxy. We find the alloy with low-and high-Be contents could be obtained by alloying BeO into ZnO films. X-ray diffraction measurements shows the c lattice constant value shrinks, and room temperature absorption shows the energy band-gap widens after Be incorporated. However, the alloy with intermediate Be composition are unstable and segregated into low-and high-Be contents BeZnO alloys. We demonstrate the phase segregation of BexZn1-xO alloys with intermediate Be composition resulted from large internal strain induced by large lattice mismatch between BeO and ZnO. (C) 2013 AIP Publishing LLC.

引用

页数：5

共 21 条

[1] Stabilization of p-type dopant nitrogen in BeZnO ternary alloy epitaxial thin films [J].