Effect of chemical substitution on the morphology and optical properties of Bi1-xCaxFeO3 films grown by pulsed-laser deposition

被引:32
作者
Ahadi, Kaveh [1 ]
Mahdavi, Seyed-Mohammad [2 ,3 ]
Nemati, Ali [1 ]
机构
[1] Sharif Univ Technol, Dept Mat Sci & Engn, Tehran 111559466, Iran
[2] Sharif Univ Technol, Dept Phys, Tehran 111559161, Iran
[3] Sharif Univ Technol, Inst Nanosci & Nanotechnol, Tehran 1458889694, Iran
关键词
BISMUTH FERRITE; BIFEO3; MULTIFERROICS;
D O I
10.1007/s10854-012-0724-7
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
The morphological characteristics as well the optical properties of Ca-doped BiFeO3 films grown by pulsed-laser deposition technique have been investigated. AFM images revealed that calcium has a radical effect on the surface features of BiFeO3 films. By utilizing spectrophotometer, transmission behaviour of the films was investigated. Local IV characteristics of the films disclosed about three orders of magnitude enhancement concerning electrical conductivity through Ca doping. X-ray photoelectron spectroscopy results revealed that Ca can reduce the valence state of iron in the compound.
引用
收藏
页码:248 / 252
页数:5
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