Local p-type conduction of Na-doped ZnO thin films grown by MOCVD

被引：16
|
作者：
Lu, Y. F. [1 ]
Wu, K. W. [1 ]
Zeng, Y. J. [2 ]
Ye, Z. Z. [1 ]
Huang, J. Y. [1 ]
Zhu, L. P. [1 ]
Zhao, B. H. [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Katholieke Univ Leuven, Lab Solid State Phys & Magnetism, BE-3001 Louvain, Belgium
来源：
CHEMICAL PHYSICS LETTERS | 2013年 / 582卷
基金：
中国国家自然科学基金; 国家教育部博士点专项基金资助;
关键词：
OPTICAL-PROPERTIES;
D O I：
10.1016/j.cplett.2013.04.026
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Growth of Na-doped ZnO thin films by low-pressure metal organic chemical vapor deposition method was realized using cyclopentadienylsodium as the sodium source. Secondary ion mass spectrometry measurements revealed the existence of Na in the ZnO thin films. Low-temperature scanning tunneling microscopy and scanning tunneling spectroscopy were used for obtaining local density of states (LDOS) of the Na-doped ZnO thin films at nanometer scale. The local measurements indicated a spatial distribution of the LDOS as well as the conductivity type that could be linked to spatial variations of Na doping level. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：82 / 85
页数：4
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