A molecular approach to magnetic metallic nanostructures from metallopolymer precursors

Chemical Society Reviews
Qingchen DongWai-Yeung Wong

Abstract

In recent years, metallopolymers have attracted much attention as precursors to generate magnetic metal/metal alloy nanoparticles (NPs) through pyrolysis or photolysis because they offer the advantages of ease of solution processability, atomic level mixing and stoichiometric control over composition. The as-generated NPs usually possess narrow size distributions with precise control of composition and density per unit area. Moreover, patterned NPs can be achieved on various substrates in this way owing to the good film-forming property of metallopolymers and such work is important for many applications based on metal nanostructures. By combining the merits of both the solution processability of metallopolymers and nanoimprint lithography (NIL), a new platform can be created for fabricating bit-patterned media (BPM) and the next-generation of nanoscale ultra-high-density magnetic data storage devices. Furthermore, most of these metallopolymers can be used directly as a negative-tone resist to generate magnetic metallic nanostructures by electron-beam lithography and UV photolithography. Self-assembly and subsequent pyrolysis of metalloblock copolymers can also afford well-patterned magnetic metal or metal alloy NPs in situ with...Continue Reading

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Citations

Feb 25, 2020·Topics in Current Chemistry·Xiangling DengJun He
May 28, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Dennis LöberRudolf Pietschnig
Dec 10, 2019·Journal of the American Chemical Society·Luis M OlaecheaChristoph Weder
Sep 25, 2019·Chemical Reviews·Kimihisa YamamotoTetsuya Kambe

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Methods Mentioned

BETA
nuclear
differential scanning calorimetry
NMR
thermal treatment
X-ray
circular dichroism
transmission
dot array
electron diffraction
electron-beam lithography

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