Speaker
Dr
Gugu Mhlongo
(CSIR)
Description
Undoped and Pd (0.5 and 0.75 mol%) doped ZnO nanostructures were synthesized by a sol-gel method and annealed at 350 oC. An increase in the particle size with Pd doping was observed. Room-temperature PL measurements showed that both oxygen and zinc related defects played a role in the defect emission process. PL and sensing analyses revealed that there is a correlation between the sensing properties and the relative concentration of the oxygen vacancies, zinc vacancies and zinc interstitials present on the surface of the ZnO- nanostructures.
Are you currently a postgraduate student? (Yes/No)
No
Primary author
Dr
Gugu Mhlongo
(CSIR)
