Controlled interlinking of Au and Ag nanoclusters using 4-aminothiophenol as molecular interconnects.
This work describes the formation of interlinked gold and silver nanoclusters at controlled pH using 4-aminothiophenol (ATP) as a molecular interconnect. UV-visible spectra give on intercrystal plasmon resonance band in the region 550-580 nm. The crystalline heteroassembly formation is also evident from the transmission electron microscopic (TEM) images, whereas X-ray photoelectron spectroscopic (XPS) analysis of the aggregates shows the presence of charged -N species, indicating electrostatic interaction of -N with Ag nanoclusters. Furthermore, electrochemical studies of these heteroassembled systems suggest that silver nanoclusters are not fully passivated by the monolayers of ATP and are accessible for redox reactions.
Physical Chemistry Division, National Chemical Laboratory, Pune 411008, India.
Jadab
J
Sharma
Nirmalya K
NK
Chaki
A B
AB
Mandale
Renu
R
Pasricha
K
K
Vijayamohanan