Platinum Infiltration of a Block Copolymer for Interconnected Three-Dimensional Metal Nanostructures

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Metallization of a polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) block copolymer produced three-dimensional nanostructures consisting of Pt-infused P2VP cylinders in a PS matrix via a single-step process. The Pt is introduced from an aqueous chloride solution and penetrates through 100s of nm thickness of the microphase-separated PS-b-P2VP to form multilevel metallized nanostructures. The metallization process replicated the through-thickness transition from in-plane to out-of-plane oriented P2VP cylinders produced by solvent annealing. Oxygen plasma etching removed the PS majority block and promoted crystallization of the Pt into nanoparticles forming cylindrical nanocrystalline assemblies.
Publisher
AMER CHEMICAL SOC
Issue Date
2021-01
Language
English
Article Type
Article
Citation

ACS APPLIED NANO MATERIALS, v.4, no.1, pp.793 - 801

ISSN
2574-0970
DOI
10.1021/acsanm.0c03115
URI
http://hdl.handle.net/10203/281763
Appears in Collection
CBE-Journal Papers(저널논문)
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