Sonochemical and microwave synthesis and characterization of ZnO nanoparticles
- Resource Type
- Conference
- Authors
- Abhulimen, I.U.; Das, K.; Rangari, V.K.; Bergman, L.; Chen, X.-B.; Morrison, J.L.
- Source
- Proceedings of the Thirty-Seventh Southeastern Symposium on System Theory, 2005. SSST '05. System theory System Theory, 2005. SSST '05. Proceedings of the Thirty-Seventh Southeastern Symposium on. :391-395 2005
- Subject
- Computing and Processing
Zinc oxide
Nanoparticles
Scanning electron microscopy
X-ray diffraction
Transmission electron microscopy
Photoluminescence
Microwave theory and techniques
X-ray scattering
Shape
Potential well
- Language
- ISSN
- 0094-2898
2161-8135
Zinc oxide nanoparticles were synthesized using sonochemical and microwave techniques. The nanoparticles were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and ultraviolet photoluminescence (PL). The SEM micrographs indicated that the particles were spherical in shape with a diameter of /spl sim/160 nm. However, the TEM micrographs revealed the presence of nanoplatelets and rods with a particle-size of /spl sim/2 nm x/spl sim/80 nm. The observed X-ray diffraction pattern was identical to the standard diffraction pattern of ZnO. Ultraviolet photoluminescence (PL) studies of the samples showed a strong PL intensity and a significant blue shift relative to the PL of the bulk. Shifts up to 70 meV were observed and attributed to a quantum confinement effect. Electrical measurements indicated a highly resistive nature of the nanoparticulate material.