scholarly journals Room temperature deposition of highly conductive and transparent H and W co-doped ZnO film

2013 ◽  
Vol 62 (1) ◽  
pp. 017803
Author(s):  
Wang Yan-Feng ◽  
Zhang Xiao-Dan ◽  
Huang Qian ◽  
Liu Yang ◽  
Wei Chang-Chun ◽  
...  
Keyword(s):  
Room Temperature ◽  
Zno Film ◽  
Temperature Deposition ◽  
Doped Zno ◽  
Co Doped

The Structural, Electrical, Magnetic Properties of (Cu, Co) Co-Doped ZnO Thin Film

2014 ◽  
Vol 556-562 ◽  
pp. 429-432
Author(s):  
Ping Cao ◽  
Yue Bai ◽  
Zhi Qu
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Sol Gel ◽  
Hall Effect Measurement ◽  
Ferromagnetic Semiconductors ◽  
Zno Thin Film ◽  
Zno Film ◽  
Co Doping ◽  
Doped Zno ◽  
Co Doped

Successful synthesis of room-temperature ferromagnetic semiconductors, (Cu, Co) co-doped ZnO film is obtained by sol-gel method. It is found that the essential ingredient in achieving room-temperature ferromagnetism is Cu co-doping. By Hall-effect measurement ap-type conductivity was observed for the Cu co-doped films, which induced the room-temperature ferromagnetism.

Room temperature fabrication of highly textured hydrogen and tungsten co-doped ZnO film for solar cell applications

2014 ◽  
Vol 121 ◽  
pp. 49-52 ◽  
Author(s):  
Yanfeng Wang ◽  
Xiaodan Zhang ◽  
He Zhang ◽  
Qian Huang ◽  
Fu Yang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Room Temperature ◽  
Zno Film ◽  
Doped Zno ◽  
Co Doped ◽  
And Tungsten

Structural reconstruction and defects transition in mediating room temperature ferromagnetism in Co-doped ZnO film

2013 ◽  
Vol 102 (13) ◽  
pp. 132405 ◽  
Author(s):  
B. Chen ◽  
Q. X. Yu ◽  
Q. Q. Gao ◽  
Y. Liao ◽  
G. Z. Wang
Keyword(s):  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Zno Film ◽  
Doped Zno ◽  
Co Doped

The Room Temperature Ferromagnetism of the Electrodeposited ZnCoO Film after the Ammine Plasma Treatment

2013 ◽  
Vol 329 ◽  
pp. 18-21 ◽  
Author(s):  
P. Cao ◽  
Y. Bai
Keyword(s):  
Plasma Treatment ◽  
Room Temperature ◽  
Treatment Process ◽  
Room Temperature Ferromagnetism ◽  
Oxide Materials ◽  
Zno Film ◽  
Xps Spectra ◽  
Wide Range ◽  
Doped Zno ◽  
Co Doped

Zinc oxide materials with outstanding performance are the broadband gap semiconductor, and make it a number of important subjects and a wide range of applications. In this paper, a Co-doped ZnO film grown by electrodeposition shows room-temperature ferromagnetic properties after the ammine plasma treatment. The XPS spectra show that the Co ions have a chemical valence of 2+ and a few nitrogen atoms was incorporated into ZnCoO film during the treatment process to occupy oxygen positions. The electronic properties also give evidence that nitrogen is incorporated into ZnCoO film. So the ferromagnetism is mediated though the p-d exchange interaction between nitrogen induced carriers and Co atoms.

Grain boundary defects-mediated room temperature ferromagnetism in Co-doped ZnO film

2009 ◽  
Vol 482 (1-2) ◽  
pp. 224-228 ◽  
Author(s):  
X.J. Liu ◽  
X.Y. Zhu ◽  
J.T. Luo ◽  
F. Zeng ◽  
F. Pan
Keyword(s):  
Grain Boundary ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Zno Film ◽  
Doped Zno ◽  
Co Doped

Photoluminescence and Magnetic Properties of Undoped and (Mn, Co) co-doped ZnO Nanoparticles

2020 ◽  
Vol 16 (4) ◽  
pp. 655-666
Author(s):  
Mona Rekaby
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Room Temperature ◽  
Magnetic Measurements ◽  
Structural Defects ◽  
Ferromagnetic Behavior ◽  
Secondary Phases ◽  
Antiferromagnetic Ordering ◽  
Doped Zno ◽  
Co Doped

Objective: The influence of Manganese (Mn2+) and Cobalt (Co2+) ions doping on the optical and magnetic properties of ZnO nanoparticles was studied. Methods: Nanoparticle samples of type ZnO, Zn0.97Mn0.03O, Zn0.96Mn0.03Co0.01O, Zn0.95Mn0.03 Co0.02O, Zn0.93Mn0.03Co0.04O, and Zn0.91Mn0.03Co0.06O were synthesized using the wet chemical coprecipitation method. Results: X-ray powder diffraction (XRD) patterns revealed that the prepared samples exhibited a single phase of hexagonal wurtzite structure without any existence of secondary phases. Transmission electron microscope (TEM) images clarified that Co doping at high concentrations has the ability to alter the morphologies of the samples from spherical shaped nanoparticles (NPS) to nanorods (NRs) shaped particles. The different vibrational modes of the prepared samples were analyzed through Fourier transform infrared (FTIR) measurements. The optical characteristics and structural defects of the samples were studied through Photoluminescence (PL) spectroscopy. PL results clarified that Mn2+ and Co2+ doping quenched the recombination of electron-hole pairs and enhanced the number of point defects relative to the undoped ZnO sample. Magnetic measurements were carried out at room temperature using a vibrating sample magnetometer (VSM). (Mn, Co) co-doped ZnO samples exhibited a ferromagnetic behavior coupled with paramagnetic and weak diamagnetic contributions. Conclusion: Mn2+ and Co2+ doping enhanced the room temperature Ferromagnetic (RTFM) behavior of ZnO. In addition, the signature for antiferromagnetic ordering between the Co ions was revealed. Moreover, a strong correlation between the magnetic and optical behavior of the (Mn, Co) co-doped ZnO was analyzed.

Effect of Er local surrounding on photoluminescence of Si Er co-doped ZnO film

2018 ◽  
Vol 200 ◽  
pp. 9-13 ◽  
Author(s):  
Kaikai Li ◽  
Fei Lu ◽  
Ranran Fan ◽  
Changdong Ma ◽  
Bo Xu
Keyword(s):  
Zno Film ◽  
Doped Zno ◽  
Co Doped ◽  
Local Surrounding
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