Low-temperature growth of p-type ZnO thin films via plasma-assisted MOCVD

被引:6
作者
Lu, Yang-Fan [1 ]
Ye, Zhi-Zhen [1 ]
Zeng, Yu-Jia [1 ]
He, Hai-Ping [1 ]
Zhu, Li-Ping [1 ]
Zhao, Bing-Hui [1 ]
机构
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
关键词
MOLECULAR-BEAM EPITAXY; SAPPHIRE; DOPANT;
D O I
10.1002/cvde.200604246
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The p-type ZnO thin films were grown at the low temperature of 250°C using plasma assisted metal-organic chemical vapor deposition (MOCVD), using NO or N2O plasma. It is found that N-doping produces tensile stress and degradation of the crystalline quality to some extent in ZnO thin films. Both ZnO:NO and ZnO:N2O films are p-type and that ZnO:NO film gives a resistivity two orders magnitude lower than that of ZnO:N2O. The study also indicates that an increase in the RF power would not help to improve the properties of the ZnO films. The photoluminescence (PL) measurement of ZnO:NO films at room temperature shows strong UV emission and weak visible emission that is related to defects. The ZnO films show highly (0002) oriented and homogeneous p-type conduction, and also good optical properties with intense UV emission.
引用
收藏
页码:295 / +
页数:4
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