Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers

Mohamed B. Zakaria; Alexei A. Belik; Takahiro Nagata; Toshiaki Takei; Satoshi Tominaka; Toyohiro Chikyow

doi:10.1016/j.jmmm.2019.165276

Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers

Mohamed B. Zakaria, Alexei A. Belik, Takahiro Nagata, Toshiaki Takei, Satoshi Tominaka, Toyohiro Chikyow

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

5 Citations (Scopus)

Abstract

Formation of a polycrystalline thin film from a Prussian blue analogue (PBA) on insulating substrates through a chemical method is reported here. One of the typical PBAs, Ni-Co PBA, K_0.4Ni_2.8[Co(CN)₆]₂·nH₂O, was selected to demonstrate the growth process. Silicon substrate surface is functionalized through a typical self-assembled monolayer process using aminopropyltrimethoxysilane (APTMS) to form relatively robust interface with PBAs through the coordination bonds with the terminal amino-groups of APTMS. Then, these amino-functionalized silicon wafers are used as anchors for the controlled assembly of homogeneous Ni-Co PBA thin films which shows several kinds of pyramidal structures on the surface. The obtained thin films exhibit paramagnetic properties at room temperature without a negative magnetization.

Original language	English
Article number	165276
Journal	Journal of Magnetism and Magnetic Materials
Volume	486
DOIs	https://doi.org/10.1016/j.jmmm.2019.165276
Publication status	Published - 2019 Sep 15
Externally published	Yes

Keywords

Anchoring
Magnetic films
Polycrystalline
Prussian blue analogue
Self-assembly

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2019.165276

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@article{67d618dc175146d5a7fd185684107838,

title = "Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers",

abstract = "Formation of a polycrystalline thin film from a Prussian blue analogue (PBA) on insulating substrates through a chemical method is reported here. One of the typical PBAs, Ni-Co PBA, K0.4Ni2.8[Co(CN)6]2·nH2O, was selected to demonstrate the growth process. Silicon substrate surface is functionalized through a typical self-assembled monolayer process using aminopropyltrimethoxysilane (APTMS) to form relatively robust interface with PBAs through the coordination bonds with the terminal amino-groups of APTMS. Then, these amino-functionalized silicon wafers are used as anchors for the controlled assembly of homogeneous Ni-Co PBA thin films which shows several kinds of pyramidal structures on the surface. The obtained thin films exhibit paramagnetic properties at room temperature without a negative magnetization.",

keywords = "Anchoring, Magnetic films, Polycrystalline, Prussian blue analogue, Self-assembly",

author = "Zakaria, {Mohamed B.} and Belik, {Alexei A.} and Takahiro Nagata and Toshiaki Takei and Satoshi Tominaka and Toyohiro Chikyow",

note = "Funding Information: Mohamed Barakat Zakaria and Toyohiro Chikyow acknowledge financial support from Japan Society for the Promotion of Science (JSPS), Japan (Grant ID: 16F16371). Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

day = "15",

doi = "10.1016/j.jmmm.2019.165276",

language = "English",

volume = "486",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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TY - JOUR

T1 - Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers

AU - Zakaria, Mohamed B.

AU - Belik, Alexei A.

AU - Nagata, Takahiro

AU - Takei, Toshiaki

AU - Tominaka, Satoshi

AU - Chikyow, Toyohiro

N1 - Funding Information: Mohamed Barakat Zakaria and Toyohiro Chikyow acknowledge financial support from Japan Society for the Promotion of Science (JSPS), Japan (Grant ID: 16F16371). Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/9/15

Y1 - 2019/9/15

N2 - Formation of a polycrystalline thin film from a Prussian blue analogue (PBA) on insulating substrates through a chemical method is reported here. One of the typical PBAs, Ni-Co PBA, K0.4Ni2.8[Co(CN)6]2·nH2O, was selected to demonstrate the growth process. Silicon substrate surface is functionalized through a typical self-assembled monolayer process using aminopropyltrimethoxysilane (APTMS) to form relatively robust interface with PBAs through the coordination bonds with the terminal amino-groups of APTMS. Then, these amino-functionalized silicon wafers are used as anchors for the controlled assembly of homogeneous Ni-Co PBA thin films which shows several kinds of pyramidal structures on the surface. The obtained thin films exhibit paramagnetic properties at room temperature without a negative magnetization.

AB - Formation of a polycrystalline thin film from a Prussian blue analogue (PBA) on insulating substrates through a chemical method is reported here. One of the typical PBAs, Ni-Co PBA, K0.4Ni2.8[Co(CN)6]2·nH2O, was selected to demonstrate the growth process. Silicon substrate surface is functionalized through a typical self-assembled monolayer process using aminopropyltrimethoxysilane (APTMS) to form relatively robust interface with PBAs through the coordination bonds with the terminal amino-groups of APTMS. Then, these amino-functionalized silicon wafers are used as anchors for the controlled assembly of homogeneous Ni-Co PBA thin films which shows several kinds of pyramidal structures on the surface. The obtained thin films exhibit paramagnetic properties at room temperature without a negative magnetization.

KW - Anchoring

KW - Magnetic films

KW - Polycrystalline

KW - Prussian blue analogue

KW - Self-assembly

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DO - 10.1016/j.jmmm.2019.165276

M3 - Article

AN - SCOPUS:85066078767

VL - 486

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

M1 - 165276

ER -

Molecular magnetic thin films made from Ni-Co Prussian blue analogue anchored on silicon wafers

Abstract

Keywords

ASJC Scopus subject areas

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