Structural, Optical, and Magnetic Properties of Nanocrystalline Co Doped SnO2 Based Diluted Magnetic Semiconductors

2009 ◽  
Vol 113 (9) ◽  
pp. 3543-3552 ◽  
Author(s):  
K. Srinivas ◽  
M. Vithal ◽  
B. Sreedhar ◽  
M. Manivel Raja ◽  
P. Venugopal Reddy
Keyword(s):  
Magnetic Properties ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Optical And Magnetic Properties ◽  
Diluted Magnetic ◽  
Co Doped

Magnetic properties of Co-doped ZnO diluted magnetic semiconductors prepared by low-temperature mechanosynthesis

2006 ◽  
Vol 422 (4-6) ◽  
pp. 529-533 ◽  
Author(s):  
S. Colis ◽  
H. Bieber ◽  
S. Bégin-Colin ◽  
G. Schmerber ◽  
C. Leuvrey ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

scholarly journals Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Meirong Wu ◽  
Zhiqiang Wei ◽  
Wenhua Zhao ◽  
Xuan Wang ◽  
Jinlong Jiang
Keyword(s):  
Magnetic Properties ◽  
Hydrothermal Method ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Blue Emission ◽  
Photoluminescence Spectra ◽  
Blue Emission Band ◽  
X Ray ◽  
Optical And Magnetic Properties ◽  
Diluted Magnetic

Diluted magnetic semiconductors Zn1-xNixS with different consistency ratio (x = 0, 0.01, 0.03, 0.05, and 0.07) were successfully synthesized by hydrothermal method using ethylenediamine as a modifier. The influence of Ni doping concentration on the microstructure, morphology, and optical and magnetic properties of undoped and Ni doped ZnS nanocrystals was characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray energy dispersive spectrometry (XEDS), ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FT-IR), photoluminescence spectra (PL), and the vibrating sample magnetometer (VSM), respectively. The experiment results show the substitution of Ni2+ on Zn2+ sites without changing the hexagonal wurtzite structure of ZnS and generate single-phase Zn1-xNixS with good crystallization. The lattice constant causes distortion and decreases with the increase of Ni2+ doped concentration. The appearance of the samples is one-dimensional well-dispersed nanorods. UV-vis spectra reveal the band gap of all Zn1-xNixS samples greater than that of bulk ZnS (3.67 eV), and blue shift phenomenon occurs. The photoluminescence spectra of undoped and doped samples possess the broad blue emission band in the range of 400–650 nm; the PL intensities of Zn1-xNixS nanorods increase with the increase of Ni content comparing to pure ZnS and reach maximum for x = 0.03. Magnetic measurements indicated that the undoped ZnS samples are superparamagnetic, whereas the doped samples exhibit ferromagnetism.

Optical and Magnetic Properties of Fe-Doped GaN Diluted Magnetic Semiconductors Prepared by MOCVD Method

2008 ◽  
Vol 25 (4) ◽  
pp. 1476-1478 ◽  
Author(s):  
Tao Zhi-Kuo ◽  
Zhang Rong ◽  
Cui Xu-Gao ◽  
Xiu Xiang-Qian ◽  
Zhang Guo-Yu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Optical And Magnetic Properties ◽  
Diluted Magnetic

Structural, optical and magnetic properties of nanocrystalline Zn0.9Co0.1O-based diluted magnetic semiconductors

2009 ◽  
Vol 113 (2-3) ◽  
pp. 749-755 ◽  
Author(s):  
Y. Kalyana Lakshmi ◽  
K. Srinivas ◽  
B. Sreedhar ◽  
M. Manivel Raja ◽  
M. Vithal ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Optical And Magnetic Properties ◽  
Diluted Magnetic
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