New challenges on gallium-doped zinc oxide films prepared by r.f. magnetron sputtering

被引:86
作者
Assunçao, V
Fortunato, E
Marques, A
Gonçalves, A
Ferreira, I
Aguas, H
Martins, R
机构
[1] Univ Nova Lisboa, FCT, Dept Mat Sci, CENIMAT, P-2829516 Caparica, Portugal
[2] Univ Nova Lisboa, CEMOP, P-2829516 Caparica, Portugal
关键词
zinc oxide; sputtering; electrical properties and measurements; optical properties;
D O I
10.1016/S0040-6090(03)00955-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Gallium-doped zinc oxide films were prepared by r.f. magnetron sputtering at room temperature as a function of the substrate-target distance. The best results were obtained for a distance of 10 cm, where a resistivity as low as 2.7 X 10(-4) Omega cm, a Hall mobility of 18 cm(2)/Vs and a carrier concentration of 1.3 X 10(21) cm(-3) were achieved. The films are polycrystalline presenting a strong crystallographic c-axis orientation (002) perpendicular to the substrate. The films present an overall transmittance in the visible part of the spectra of approximately 85%, on average. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:102 / 106
页数:5
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