Andriy Horechyy, Bhanu Nandan, Nikolaos E. Zafeiropoulos, Petr Formanek, Ulrich Oertel, Nadja C. Bigall, Alexander Eychmüller and Manfred Stamm A Step-Wise Approach for Dual Nanoparticle Patterning via Block Copolymer Self-Assembly Advanced Functional Materials 23
Ternary composites composed of two types of pre-synthesized nanoparticles selectively localized in different domains of a microphase-separated poly(styrene-b- vinylpyridine) block copolymer (BCP) are prepared using a step-wise approach. The BCP thin films containing polystyrene-coated silver nanoparticles (NP1) are prepared to give the NP1/BCP composites. Citrate-stabilized secondary nanoparticles (NP2) are then deposited from their aqueous dispersion atop of the poly(vinylpyridine) microdomains to give ordered ternary NP1/NP2/BCP structures.
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