Controlled interparticle spacing through self-assembly of Au nanoparticles and poly(amidoamine) dendrimers.
نویسندگان
چکیده
Control of particle-particle spacing is a key determinant of optical, electronic, and magnetic properties of nanocomposite materials. We have used poly(amidoamine) (PAMAM) dendrimers to assemble carboxylic acid-functionalized mixed monolayer protected clusters (MMPCs) through acid/base chemistry between the particle and dendrimer. Small angle X-ray scattering was then used to establish average inter-MMPC distances. Five generations of PAMAM dendrimer (0, 1, 2, 4, 6) were investigated, with a monotonic increase in interparticle spacing from 4.1 to 6.1 nm observed with increasing generation.
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ورودعنوان ژورنال:
- Journal of the American Chemical Society
دوره 124 51 شماره
صفحات -
تاریخ انتشار 2002