Fabrication of Fe3O4 nanoparticle arrays via patterned template assisted self-assembly

Tomoyuki Ogawa; Yasuhiro Takahashi; Haitao Yang; Kaori Kimura; Masatoshi Sakurai; Migaku Takahashi

doi:10.1088/0957-4484/17/22/002

Fabrication of Fe₃O₄ nanoparticle arrays via patterned template assisted self-assembly

Tomoyuki Ogawa, Yasuhiro Takahashi, Haitao Yang, Kaori Kimura, Masatoshi Sakurai, Migaku Takahashi

ENG - Electronic Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Magnetic nanoparticle arrays have been fabricated by combining chemically synthesized Fe₃O₄ nanoparticles with a diblock copolymer template substrate consisting of self-assembled polystyrene (PS) dots in a polymethylmethacrylate (PMMA) matrix. The influence of the volume fraction of the Fe₃O₄ suspending solution and the withdrawal speed of the template on the formation of array structures was investigated. A small volume fraction of the nanoparticles and low withdrawal speed play an important role in the fabrication of the patterned arrays of nanoparticles via template assisted self-assembly. Below a withdrawal speed of 0.5mms^-1 and a nanoparticle volume fraction below 0.05vol% (in particular, at extremely high dilutions of less than 0.01vol%), the selective deposition of one to several nanoparticles on every single PS dot becomes possible.

Original language	English
Article number	002
Pages (from-to)	5539-5543
Number of pages	5
Journal	Nanotechnology
Volume	17
Issue number	22
DOIs	https://doi.org/10.1088/0957-4484/17/22/002
Publication status	Published - 2006 Nov 28

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abstract = "Magnetic nanoparticle arrays have been fabricated by combining chemically synthesized Fe3O4 nanoparticles with a diblock copolymer template substrate consisting of self-assembled polystyrene (PS) dots in a polymethylmethacrylate (PMMA) matrix. The influence of the volume fraction of the Fe3O4 suspending solution and the withdrawal speed of the template on the formation of array structures was investigated. A small volume fraction of the nanoparticles and low withdrawal speed play an important role in the fabrication of the patterned arrays of nanoparticles via template assisted self-assembly. Below a withdrawal speed of 0.5mms-1 and a nanoparticle volume fraction below 0.05vol% (in particular, at extremely high dilutions of less than 0.01vol%), the selective deposition of one to several nanoparticles on every single PS dot becomes possible.",

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AU - Ogawa, Tomoyuki

AU - Takahashi, Yasuhiro

AU - Yang, Haitao

AU - Kimura, Kaori

AU - Sakurai, Masatoshi

AU - Takahashi, Migaku

PY - 2006/11/28

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AB - Magnetic nanoparticle arrays have been fabricated by combining chemically synthesized Fe3O4 nanoparticles with a diblock copolymer template substrate consisting of self-assembled polystyrene (PS) dots in a polymethylmethacrylate (PMMA) matrix. The influence of the volume fraction of the Fe3O4 suspending solution and the withdrawal speed of the template on the formation of array structures was investigated. A small volume fraction of the nanoparticles and low withdrawal speed play an important role in the fabrication of the patterned arrays of nanoparticles via template assisted self-assembly. Below a withdrawal speed of 0.5mms-1 and a nanoparticle volume fraction below 0.05vol% (in particular, at extremely high dilutions of less than 0.01vol%), the selective deposition of one to several nanoparticles on every single PS dot becomes possible.

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Fabrication of Fe₃O₄ nanoparticle arrays via patterned template assisted self-assembly

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