Metallic nickel nanorod arrays embedded into ordered block copolymer templates

被引：36

作者：

Seifarth, O. ^{[1
]}

Krenek, R.

Tokarev, I.

Burkov, Y.

Sidorenko, A.

Minko, S.

Stamm, M.

Schmeisser, D.

机构：

[1] Brandenburg Tech Univ Cottbus, Appl Phys Sensor Technol, Cottbus, Germany

[2] Leibniz Inst Polymer Res Dresden, Dresden, Germany

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 16期

关键词：

nanostructures; nickel; PEEM; AFM; self assembly; polymers;

D O I：

10.1016/j.tsf.2006.11.048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on metallic Nickel nanorods prepared by utilizing a mask of ordered nanostructured hollow channels in a block copolymer matrix. These polymeric templates were formed by a self organized process in block copolymer supramolecular assemblies. Nickel was filled into with two different techniques, electrodeposition and washing in. We monitor the formation process of these nanorods by means of atomic force microscopy and synchrotron radiation soft X-ray based photoelectron emission microscopy. The oxidation state of the nickelrods is evaluated with X-ray absorption spectroscopy and X-ray photoelectron spectroscopy at the Ni L edges and lateral distributions of the Ni nanorods were detected with micrometer resolved X-ray absorption spectroscopy. The finding is that the Ni rods were metallic despite their preparation under ambient conditions, inside the particles no hints for NiO complexes were found. This indicates that the polymer protects Ni nanoparticles against oxidation. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：6552 / 6556

页数：5

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