Development of transparent conducting copper and iron co-doped cadmium oxide films: Effect of annealing in hydrogen atmosphere

被引:16
作者
Dakhel, A. A. [1 ]
Bououdina, M. [1 ,2 ]
机构
[1] Univ Bahrain, Coll Sci, Dept Phys, Sakhir, Bahrain
[2] Univ Bahrain, Nanotechnol Ctr, Sakhir, Bahrain
关键词
Cadmium-iron-copper oxide; Fe- and Cu-doped CdO; Co-doping; TCO; ROOM-TEMPERATURE FERROMAGNETISM; OPTICAL-PROPERTIES; STRUCTURAL-CHARACTERIZATION; ZNO FILMS;
D O I
10.1016/j.mssp.2014.05.015
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Hydrogenated (annealed in hydrogen atmosphere) cadmium oxide (CdO) thin films co-doped with iron (Fe) of different levels and fixed (2.5%) copper (Cu) amount were deposited on glass and silicon wafer substrates by thermal evaporation. The films were characterised with X-ray fluorescence, X-ray diffraction, optical spectroscopy, and dc-electrical measurements. The obtained results show important improvements in the conductivity, mobility, and carrier concentration compared to un-doped and non-hydrogenated CdO. Hydrogenated CdO doped with 2.5% Cu and 1.3% Fe improved the conductivity (2293.6 S/cm) by similar to 46 times, mobility (78.31 cm(2)/V s) by similar to 11 times, and carrier concentration (1.82 x 10(20) cm(-3)) by similar to 4 times. This suggests the possibility of using CdO:Cu:Fe-H as transparent-conducting-oxide and dilute-magnetic-semiconductor field of applications. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:527 / 532
页数:6
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