Liquid-phase synthesis of thiol-derivatized silver nanocrystals
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Author(s)
Murthy, Srihari
Bigioni, Terry P.
Wang, Z. L. (Zhong Lin)
Khoury, Joseph T.
Whetten, R. L.
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Abstract
A liquid-phase method is reported for the preparation of dodecanethiol-derivatized silver nanocrystals. Toluene sols of
this material maintain as sols in air at room temperature at least on the timescale of months. X-ray diffraction (XRD) and
transmission electron microscopy (TEM) are used to obtain size and structural information about the nanocrystal core while
solubility properties and energy dispersive X-ray spectroscopy (EDS) are used to identify the passivating layer. Laser
desorption time-of-flight mass spectra (LDTOFMS) of this material show broad peaks in the mass range from 40 to 300
kamu. These results are consistent with the synthesized material being a dodecanethiol-derivatized silver nanocrystal
material with a mean crystalline silver core of 3.1 ± 0.6 nm.
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Date
1997
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