Effect of Co doping on the physical properties of Co-doped ZnO nanoparticles

Autor: Zohra Nazir Kayani, Shahzad Naseem, Saira Riaz, Iqra Shah
Rok vydání: 2017
Předmět:
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