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Chromogenic Homo-Dinuclear Ruthenium(II) Monolayer as a Tunable Molecular Memory Module for Multibit Information Storage
journal contribution
posted on 2015-03-05, 00:00 authored by Anup Kumar, Megha Chhatwal, Domenico
A. Cristaldi, Satish Kumar Awasthi, Rinkoo D. Gupta, Antonino GulinoA molecular-module comprising of
a surface-confined optically rich
and redox active homobimetallic chromophore on siloxane-based templates,
has been obtained and characterized via X-ray photoelectron spectroscopy,
atomic force microscopy, UV–vis measurements, and cyclic voltammetry.
The multimetallic system offers high order optical/redox “write-read”
for viable chip-engineering. In fact, this system proposes a potential
platform to save a high charge/information density of ∼3.6
× 1014 electrons/cm2 as a function of the
applied potential. Moreover, the convenient synthetic pathway, and
the manipulation of Ru2+/Ru3+ redox wave into
multiple intermediate mixed valence redox states, are the significant
advantages with respect to heterobimetallic analogs toward its integration
in “multi-memory” systems. Notably, the module exhibits
a high charge density storage capacity, is robust against a large
no. of redox cycles and high temperatures.