A solvothermal route to ZnO and Mn-doped ZnO nanoparticles using the cupferron complex as the precursor.
ZnO nanoparticles have been synthesized from the cupferron complex by a solvothermal route in toluene solution. The nanoparticles have been prepared in the presence of various capping agents, of which the best results were obtained with tri-n-octylphosphine oxide, polyethylene glycol, and sodium bis (2-ethylhexyl) sulphosuccinate. The particles obtained with these capping agents have diameters in the 8-14 nm range. The nanoparticles have been characterized by electron microscopy, UV absorption spectroscopy, and photoluminescence spectroscopy, besides x-ray diffraction. Optical spectra of the small nanoparticles show evidence for quantum confinement. ZnO nanoparticles doped with 5% and 10% Mn could be prepared by the solvothermal route starting with a Zn(1-x)Mnx cupferron complex, and the Mn-doped nanoparticles remain paramagnetic down to 5K.
Ghosh
Moumita
M
Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India.
Seshadri
Ram
R
Rao
C N
CN
D003460:Crystallization / Q000379:methods*; D006358:Hot Temperature; D008345:Manganese / Q000737:chemistry*; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D009602:Nitrosamines / Q000737:chemistry*; D010316:Particle Size; D012997:Solvents / Q000737:chemistry; D013499:Surface Properties; D014050:Toluene / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry; D015034:Zinc Oxide / Q000138:chemical synthesis / Q000737:chemistry*
D009602:Nitrosamines; D012997:Solvents; D014050:Toluene; D008345:Manganese; D015032:Zinc; D015034:Zinc Oxide; C031808:cupferron