cm7b04515_si_001.pdf (1.04 MB)
Self-Assembly of the Nonplanar Fe(III) Phthalocyanine Small-Molecule: Unraveling the Impact on the Magnetic Properties of Organic Nanowires
journal contribution
posted on 2018-01-04, 00:00 authored by A. Nicolas Filippin, Vı́ctor López-Flores, T. Cristina Rojas, Zineb Saghi, Victor J. Rico, Juan R. Sanchez-Valencia, Juan P. Espinós, Andrea Zitolo, Michel Viret, Paul A. Midgley, Angel Barranco, Ana BorrasIn
this article we show for the first time the formation of magnetic
supported organic nanowires (ONWs) driven by self-assembly of a nonplanar
Fe(III) phthalocyanine chloride (FePcCl) molecule. The ONWs grow by
a crystallization mechanism on roughness-tailored substrates. The
growth methodology consists of a vapor deposition under low vacuum
and mild temperature conditions. The structure, microstructure, and
chemical composition of the FePcCl NWs are thoroughly elucidated and
compared with those of Fe(II) phthalocyanine NWs by a consistent and
complementary combination of advanced electron microscopies and X-ray
spectroscopies. In a further step, we vertically align the NWs by
conformal deposition of a SiO2 shell. Such orientation
is critical to analyze the magnetic properties of the FePcCl and FePc
supported NWs. A ferromagnetic behavior below 30 K with an easy axis
perpendicular to the phthalocyanine plane was observed in the two
cases with the FePcCl nanowires presenting a wider hysteresis. These
results open the path to the fabrication of nanostructured one-dimensional
small-molecule spintronic devices.
History
Usage metrics
Categories
Keywords
chemical compositionSuch orientationelectron microscopiescrystallization mechanismsmall-molecule spintronic devicestemperature conditionsroughness-tailored substratesONWFePcCl NWsX-ray spectroscopiesgrowth methodologyOrganic Nanowires30 Kconformal depositionMagnetic Propertiesvapor depositionFePcCl nanowiresSiO 2 shellphthalocyanine plane
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC