Gold nanorods (GNRs) with a high dimensional ratio were obtained by seed mediated synthesis. In order to obtain the lowest ratio of shape impurities, 5 bromosalicylic acid was used as additive; a controlled dissolution of the additive resulted to be necessary for obtaining a low ratio of shape impurities. The effect of silver concentration in the growth solution was also investigated, showing its influence related to a change in the size ratio of the obtained GNRs. Furthermore, XRD analysis showed that silver precipitation occurs above a specific Ag concentration. The synthesis reproducibility was investigated for two different silver concentration. The mechanism of GNRs growth was investigated by absorption and TEM measurements.
Synthesis and characterization of gold nanorods
Saorin, Asia
2019/2020
Abstract
Gold nanorods (GNRs) with a high dimensional ratio were obtained by seed mediated synthesis. In order to obtain the lowest ratio of shape impurities, 5 bromosalicylic acid was used as additive; a controlled dissolution of the additive resulted to be necessary for obtaining a low ratio of shape impurities. The effect of silver concentration in the growth solution was also investigated, showing its influence related to a change in the size ratio of the obtained GNRs. Furthermore, XRD analysis showed that silver precipitation occurs above a specific Ag concentration. The synthesis reproducibility was investigated for two different silver concentration. The mechanism of GNRs growth was investigated by absorption and TEM measurements.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.14247/2462