Abstract
Antimony-doped tin oxide (ATO) nano particles were synthesized by a diffusion co-precipitation method using ethanol as a solvent in the ammonia atmosphere created by ammonium carbonate and they were annealed at 600°C. Different doping amount of antimony and concentration of ethanol were used to investigate their effect on the conductivity and morphology of the obtained ATO powders. The results showed that the optimal experimental parameters to obtain ATO with high conductivity should be that the molar ratio of antimony and tin was 0.07:1 while the concentration of ethanol was 100%. Under these conditions, the size of the obtained nano ATO particles was in a range of 5–10nm, their average size was 9.43nm and their yield was nearly 80%. The highest conductivity obtained was 8S/cm. Additionally, the reaction mechanism to form the ATO precursor was discussed in this study.
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