NDLI: Influence of doping group I elements on structural, optical and magnetic properties of nanocrystalline ZnO

Content Provider	Springer Nature Link
Author	Sivasankari, J. Sankar, S. VimalaDevi, L.
Copyright Year	2015
Abstract	Pure ZnO and group-I elements doped ZnO nanocrystals were synthesized by solution combustion method. The XRD analysis reveals that all the ZnO doped nanocrystals have hexagonal wurtzite crystal structure. Scanning electron microscopy reveals the growth of rod like structure for Na doped sample. The UV–Vis absorption results show that the band gap of ZnO doped nanocrystals is red shifted with decrease in crystallite size. A sharp peak at 434 cm$^{−1}$ was observed in Raman spectra which correspond to the high frequency E2 mode of ZnO. Photoluminescence properties of pure and group-I elements doped ZnO nanocrystallites have strong blue emission at 421 nm. The peak positions were found to be almost same even after the addition of alkali metal ions owing to the variation in the nanostructure and difference in ionic radii. Vibrating sample magnetometer studies show that the doping of group-I elements show ferromagnetic behavior compared to pure ZnO samples which are paramagnetic. Our investigations make, hence, useful contributions to nano-photonics, luminescence and optoelectronic devices.
Starting Page	8089
Ending Page	8096
Page Count	8
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	26
Issue Number	10
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2015-07-12
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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