Optical and magnetic properties of copper doped ZnO nanorods prepared by hydrothermal method

Aravind, Arun; Jayaraj, M. K.; Kumar, Mukesh; Chandra, Ramesh

doi:10.1007/s10854-012-0911-6

Cited by 29 publications

(25 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cu doped ZnO nanorods showed red shift in E 2 high mode as compared to pure nanorods (Fig. 4b), which was clear indication of incorporation of Cu ions into ZnO nanorods lattice, this kind of red shift was also observed previously [20,41]. The reason behind this frequency shift is similar to explain by Samanta et al [42].…”

Section: Raman Analysissupporting

confidence: 85%

“…Expansion in unit cell volume was also observed (Table-2). A similar observation on the increment in lattice constants has also been reported for Cu doped ZnO film [20,26,27] as well as Co doped ZnO film, where the ionic radii of Co ion (0.058 nm) is smaller than Zn 2+ (0.060 nm) [28]. It was explained that increment in lattice constants with Co 2+ incorporation has been possible, if the co-ordination number of Co ion increased, as the some Co ions occupied the interstitial position.…”

Section: Xrd Analysissupporting

confidence: 85%

“…In this regard, the synthesis and study of Cu doped ZnO nanosystem is being important area of research. Different synthetic routes for Cu doped ZnO, 1D nanostructure have been demonstrated, such as thermal diffusion method [18], hydrothermal route [19,20], thermal vapor phase transport [21], vaporliquid-solid (VLS) method [9,11], and chemical bath deposition (CBD) [22]. CBD is being best choice to synthesized Cu doped ZnO 1D nanostructures, as it is one of the cheapest methods to deposit thin films and does not need any expensive equipment, vacuum condition or high temperature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cu-implanted ZnO nanorods array film: An aqueous synthetic approach

Singh¹,

Thool²,

Singh³

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Raman Analysissupporting

confidence: 85%

Section: Xrd Analysissupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cu-implanted ZnO nanorods array film: An aqueous synthetic approach

Singh¹,

Thool²,

Singh³

et al. 2015

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…The ferromagnetism was observed in un-doped or non-magnetic element doped oxides (HfO 2 , In 2 O 3 , SnO 2 , and ZnO) [3][4][5][6][7], which has attracted extensive attention. Among these candidates, ZnO has drawn noticeable attention [8,9], due to its potential applications in filed effect transistors, catalysts, and optoelectronic areas.…”

Section: Introductionmentioning

confidence: 99%

Unexpected ferromagnetism in n-type polycrystalline K-doped ZnO films prepared by RF-magnetron sputtering

Liu

Zhou

Huang

et al. 2015

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

The room temperature ferromagnetism in highly c-axis orientated K-doped ZnO polycrystalline films prepared by RF-magnetron sputtering were systematically investigated in this work. The decrease of n-type carriers and the enhanced acceptor-related photoluminescence with the K doping imply the formation of K substitution and Zn vacancy defects. It can be speculated that the room-temperature ferromagnetism observed in K-doped ZnO polycrystalline films is related with the hole. Since the saturation magnetization was positively dependent on the amount of hole defects based on the PL spectra analysis. The ferromagnetism coupling and the room temperature ferromagnetism obtained in K-doped ZnO polycrystalline films thus is originated from p-p coupling of the surrounding O atoms of the K substitution and Zn vacancy defects. The co-existing of both the n-type conductivity and the ferromagnetism induced by localized holes, which is much different from the previous report for epitaxial samples, give new insight into the behavior of d 0 ferromagnetism in oxides.

show abstract

“…Different techniques such as molecular beam epitaxy, sputtering, sol-gel processing, vapor deposition, and electrochemical deposition have been employed to fabricate ZnO nanowires and nanorods, which have been widely used in laser devices, gas sensors, ultraviolet-visible light emission devices, and many other applications [5][6][7][8]. Ai et al [9] have studied the room temperature ferromagnetism of n-type Cu-doped epitaxial ZnO films, while Aravind et al [10] focused on the optical and magnetic properties of copper-doped ZnO nanorods; in addition, many studies have been conducted on CuZnO (CZO) [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Electrical Properties of CZO Films Prepared by Ultrasonic Spray Pyrolysis

Chen

Hsieh

Zhang

2014

Proceedings of 1st International Electronic Conference on Materials

View full text Add to dashboard Cite

CuZnO (CZO) films have attracted increasing amounts of attention due to their promising potential applications in semiconductor devices. ZnO shows n-type conductivity, and attempts have been made to dope several elements in ZnO to improve the electrical properties. This study investigated the electrical property transitions of CZO films and determined the copper concentration at which the conductivity of CZO films will change from n-type to p-type. In this study, CZO films were fabricated by ultrasonic spray pyrolysis with copper acetate, zinc acetate, and ammonium acetate precursor solution. The concentrations of Cu ions in the CZO films were controlled by the concentration ratios of copper acetate to zinc acetate in the precursor solutions. In addition, these samples were analyzed by Hall effect measurements, X-ray diffraction, transmittance measurements, and photoluminescence measurements. The results show that the conductivity of the CZO film changes from n-type to p-type when the copper ion concentration in the film is 5%.

show abstract

Optical and magnetic properties of copper doped ZnO nanorods prepared by hydrothermal method

Cited by 29 publications

References 45 publications

Cu-implanted ZnO nanorods array film: An aqueous synthetic approach

Cu-implanted ZnO nanorods array film: An aqueous synthetic approach

Unexpected ferromagnetism in n-type polycrystalline K-doped ZnO films prepared by RF-magnetron sputtering

Electrical Properties of CZO Films Prepared by Ultrasonic Spray Pyrolysis

Contact Info

Product

Resources

About