Heteroepitaxial growth of Cu2O thin film on ZnO by metal organic chemical vapor deposition

被引:98
作者
Jeong, SeongHo [1 ]
Aydil, Eray S. [1 ]
机构
[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
基金
美国国家科学基金会;
关键词
X-ray diffraction; Metal organic chemical vapor deposition; Solid phase epitaxy; Oxides; Semiconducting materials; Heterojunction semiconductor devices; HETEROJUNCTION SOLAR-CELLS; CUPROUS-OXIDE; PHOTOVOLTAIC PROPERTIES; NANOWIRES;
D O I
10.1016/j.jcrysgro.2009.07.020
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Cuprous oxide (Cu2O) thin films were grown epitaxially on c-axis-oriented polycrystalline zinc oxide (ZnO) thin films by low-pressure metal organic chemical vapor deposition (MOCVD) from Copper(II) hexafluoroacetylacetonate [Cu(C5HF6O2)(2)] at various substrate temperatures, between 250 and 400 degrees C, and pressures, between 0.6 and 2.1 Torr. Polycrystalline thin films of Cu2O grow as single phase with [110] axis aligned perpendicular to the ZnO surface and with in-plane rotational alignment due to (220)(Cu2O)parallel to(0002)(ZnO); [001](Cu2O)parallel to[1 (2) over bar 10](ZnO) epitaxy. The resulting interface is rectifying and may be suitable for oxide-based p-n junction solar cells or diodes. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:4188 / 4192
页数:5
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