EFFECT OF Cr DOPING INTO CdSe HOST NANOSIZE THIN FILMS ON THE STRUCTURAL, OPTICAL AND MAGNETIC PROPERTIES

被引:0
作者
Hegazy, H. H. [1 ,2 ]
Shaaban, E. R. [2 ]
Reben, M. [3 ]
机构
[1] King Khalid Univ, Fac Sci, Phys Dept, POB 9004, Abha, Saudi Arabia
[2] Al Azhar Univ, Fac Sci, Phys Dept, Assiut Branch, Assiut 71542, Egypt
[3] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Al Mickiewicza 30, PL-30059 Krakow, Poland
来源
CHALCOGENIDE LETTERS | 2019年 / 16卷 / 04期
关键词
Cd1-xCrxSe thin films; Zinc blend wurtzite; Optical constants; Energy gap; Hystersis loop; CARRIER MULTIPLICATION; III-V; FERROMAGNETISM; THICKNESS; ZNO; NANOCRYSTALS; CONSTANTS; NANOPARTICLES; SPINTRONICS; SCHERRER;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Different composition of Cd1-xCrxSe (x = 0, 0.02, 0.04, 0.06, 0.08, and 0.10) films were evaporated by electron beam gun. The effect of Cr doping on the structural, optical, and magnetic properties have been investigated. X-ray diffraction studies confirm the formation of wurtzite structure for all Cd1-xCrxSe films The lattice constants are found to be increased with increasing Cr concentration. The crystallite size increases and the lattice strain decreases with the increase in Cr content. The elemental constituents were characterized by energy dispersive X-ray. Both the refractive index and film thickness have been determined using the envelop method suggested by Swanepoel. Optical studies showed a decrease in refractive index and an increase in energy gap with the increase of the Cr doping. Magnetization measurements via vibrating sample magnetometer showed a hysteresis loop and confirmed room temperature ferromagnetism in Cr-doped CdSe films. The change in Optical constants, energy gap, and magnetic properties, which have been deduced can be interpreted in terms of micro structural parameters.
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页码:163 / 173
页数:11
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