Effect of Co doping on the physical properties of Co-doped ZnO nanoparticles
Autor: | Zohra Nazir Kayani, Shahzad Naseem, Saira Riaz, Iqra Shah |
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Rok vydání: | 2017 |
Předmět: |
010302 applied physics
Materials science Band gap Doping Nanoparticle Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics medicine.disease_cause 01 natural sciences Atomic and Molecular Physics and Optics Grain size Electronic Optical and Magnetic Materials Ferromagnetism Chemical engineering 0103 physical sciences medicine Electrical and Electronic Engineering Fourier transform infrared spectroscopy 0210 nano-technology Porosity Ultraviolet |
Zdroj: | Journal of Materials Science: Materials in Electronics. 28:5953-5961 |
ISSN: | 1573-482X 0957-4522 |
DOI: | 10.1007/s10854-016-6269-4 |
Popis: | Cobalt-doped (1–5 wt%) ZnO nano-particles have been fabricated by sol–gel route. Fourier Transform Infrared Spectroscopy shows that Co has successfully substituted Zn in ZnO lattice. The average optical transmittance of the nanoparticles is found to be >75% in the visible region. These transparent semiconductor nanoparticles retain a band gap in the ultraviolet (3.99–3.2 eV) and high transparency across the Co doping range of (1–5 wt%). Co doped ZnO nanoparticles show room-temperature ferromagnetism. Surface study shows that nanoparticles are porous in nature. The grain size of the nanoparticles is varied between 33 and 63 nm. |
Databáze: | OpenAIRE |
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