A Simple and Convenient Method to Fabricate Hexagonally Ordered Gold Nanoparticle Arrays Using Diblock Copolymer Micelle Template

Watanabe, Shigeru; Nakano, Shin; Imai, Chie; Laskar, Inamur Rahaman; Komura, Tomonori; Hadano, Shingo; Iyoda, Tomokazu

doi:10.1246/cl.2010.902

Cited by 7 publications

(8 citation statements)

References 28 publications

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“…Up to now, numerous studies have focused on the deposition of preformed nanoparticles on block copolymer micellar lms. 41,42,44 For example, Krishnamoorthy et al reported the electrostatic self-assembly of gold nanoparticles onto plasmaetched poly(styrene-block-2-vinylpyridine) (PS-b-P2VP) micellar lm. 44 In that case, both the number of nanoparticles per cluster and the intercluster distance could be tuned conveniently.…”

Section: Introductionmentioning

confidence: 99%

Gold nanoparticle arrays assembled on the reconstructed surface of block copolymer thin films

et al. 2013

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Section: Introductionmentioning

confidence: 99%

Gold nanoparticle arrays assembled on the reconstructed surface of block copolymer thin films

et al. 2013

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“…These nanomaterials exhibit size-dependent properties that are very different from those of bulk metals and should lead to novel applications ranging from catalysis and biosensors to optics and data storage. [1][2][3][4][5] Chemical vapor deposition (CVD) 6 and laser ablation 7 are examples of ways that metal nanoparticles can be obtained from bulk metals. Various wet chemical preparations (e.g., polymers, colloids (micelles), and microemulsion) have been demonstrated as facile bottom-up approaches for the reduction of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Ni nanoparticles between montmorillonite layers utilizing dimethylaminoborane as reducing agent

et al. 2012

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Preparation of Ni nanoparticles between montmorillonite layers using dimethylaminoborane (DMAB) as a reducing agent is reported. The DMAB molecules are first intercalated into the interlayer space of Ni-montmorillonite (Ni-mont). Then, as a result of a heating process, the DMAB is decomposed to release electrons for the reduction of the Ni ions. From high-resolution TEM images, it is demonstrated that the deposited Ni nanoparticles with about 1-2 nm in size are formed uniformly over the entire area of the Ni-mont matrix. Considering the gallery height calculated by subtracting the silicate sheet thickness from the basal spacing (1.30 nm), the morphology of the formed Ni nanoparticles in the interlayer space is thought to be disc-like in shape with a thickness of 0.3-0.4 nm and an average lateral size of 1.2 nm.

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“…for plasmonic applications. [7][8][9] The colloidal lithography method starts with polymeric particles containing a metal complex as they can be prepared by miniemulsion and emulsion polymerization techniques. 4 Miniemulsion polymerization is a powerful tool for the encapsulation of a variety of different functionalities, including various hydrophobic metal complexes and can be applied for the polymerization of a wide range of monomers.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Arrays of size and distance controlled platinum nanoparticles fabricated by a colloidal method

et al. 2011

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Based on emulsion polymerization in the presence of a Pt complex, polystyrene (PS) particles were prepared exhibiting a well defined average diameter with narrow size-distribution. Furthermore, the colloids contain a controlled concentration of the Pt precursor complex. Optimized coating of Si substrates with such colloids leads to extended areas of hexagonally ordered close-packed PS particles. Subsequent application of plasma etching and annealing steps allows complete removal of the PS carriers and in parallel nucleation and growth of Pt nanoparticles (NPs) which are located at the original center of the PS colloids. In this way, hexagonally arranged spherical Pt NPs are obtained with controlled size and interparticle distances demonstrating variability and precision with so far unknown parameter scalability. This control is demonstrated by the fabrication of Pt NP arrays at a fixed particle distance of 185 nm while systematically varying the diameters between 8 and 15 nm. Further progress could be achieved by seeded emulsion polymerization. Here, Pt loaded PS colloids of 130 nm were used as seeds for a subsequent additional emulsion polymerization, systematically enlarging the diameter of the PS particles. Applying the plasma and annealing steps as above, in this way hexagonally ordered arrays of 9 nm Pt NPs could be obtained at distances up to 260 nm. To demonstrate their stability, such Pt particles were used as etching masks during reactive ion etching thereby transferring their hexagonal pattern into the Si substrate resulting in corresponding arrays of nanopillars.

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A Simple and Convenient Method to Fabricate Hexagonally Ordered Gold Nanoparticle Arrays Using Diblock Copolymer Micelle Template

Cited by 7 publications

References 28 publications

Gold nanoparticle arrays assembled on the reconstructed surface of block copolymer thin films

Gold nanoparticle arrays assembled on the reconstructed surface of block copolymer thin films

Preparation of Ni nanoparticles between montmorillonite layers utilizing dimethylaminoborane as reducing agent

Arrays of size and distance controlled platinum nanoparticles fabricated by a colloidal method

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