共 28 条
Optical properties of Al-doped ZnO thin films by ellipsometry
被引:143
作者:

Li, Qing Hua
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机构:
Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China

Zhu, Deliang
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h-index: 0
机构:
Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China

Liu, Wenjun
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h-index: 0
机构:
Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China

Liu, Yi
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机构:
Shenzhen Univ, Coll Phys, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China

Ma, Xiao Cui
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h-index: 0
机构:
Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
机构:
[1] Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
[2] Shenzhen Key Lab Special Funct Mat, Shenzhen 518060, Peoples R China
[3] Shenzhen Univ, Coll Phys, Shenzhen 518060, Peoples R China
关键词:
Al-doped ZnO (AZO);
optical properties;
ellipsometry;
D O I:
10.1016/j.apsusc.2007.09.104
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:
Al-doped ZnO thin films (AZO) were prepared on Si (100) substrates by using sub-molecule doping technique. The Al content was controlled by varying Al sputtering time. The as-prepared samples were annealed in vacuum chamber at 800 degrees C for 30 min. From the XRD observations, it is found that all films exhibit only the (002) peak, suggesting that they have c-axis preferred orientation. The average transmittance of the visible light is above 80%. Spectroscopic ellipsometry was used to extract the optical constants of the films. The absorption coefficient and the energy gap were then calculated. The results show that the absorption edge initially blue-shifts and then red-shifts with increase of Al content. (C) 2008 Published by Elsevier B.V.
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页码:2922 / 2926
页数:5
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