Type

Journal Article

Authors

Michael A. Morris
Saibal Roy
Justin D. Holmes
Patrick Carolan
Matthew T Shaw
Ramsankar Senthamaraikannan
Tuhin Maity
Tandra Ghoshal

Subjects

Chemistry

Topics
synthesis and processing large scale iron oxide space magnetic properties high aspect ratio self assembled molecular weight size magnetic materials information storage magnetic properties and materials

Size and space controlled hexagonal arrays of superparamagnetic iron oxide nanodots: magnetic studies and application. (2013)

Abstract Highly dense hexagonally arranged iron oxide nanodots array were fabricated using PS-b-PEO self-assembled patterns. The copolymer molecular weight, composition and choice of annealing solvent/s allows dimensional and structural control of the nanopatterns at large scale. A mechanism is proposed to create scaffolds through degradation and/or modification of cylindrical domains. A methodology based on selective metal ion inclusion and subsequent processing was used to create iron oxide nanodots array. The nanodots have uniform size and shape and their placement mimics the original self-assembled nanopatterns. For the first time these precisely defined and size selective systems of ordered nanodots allow careful investigation of magnetic properties in dimensions from 50 nm to 10 nm, which delineate the nanodots are superparamagnetic, well-isolated and size monodispersed. This diameter/spacing controlled iron oxide nanodots systems were demonstrated as a resistant mask over silicon to fabricate densely packed, identical ordered, high aspect ratio silicon nanopillars and nanowire features.
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Ireland -> University College Cork -> Chemistry - Journal Articles
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Ireland -> University College Cork -> College of Science, Engineering and Food Science
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Ireland -> University College Cork -> Tyndall National Institute - Journal Articles
Ireland -> University College Cork -> Chemistry
Ireland -> University College Cork -> Materials Chemistry and Analysis Group - Journal articles

Full list of authors on original publication

Michael A. Morris, Saibal Roy, Justin D. Holmes, Patrick Carolan, Matthew T Shaw, Ramsankar Senthamaraikannan, Tuhin Maity, Tandra Ghoshal

Experts in our system

1
Michael A. Morris
University College Cork
Total Publications: 164
 
2
Saibal Roy
University College Cork
Total Publications: 62
 
3
Justin D. Holmes
University College Cork
Total Publications: 287
 
4
Matthew T Shaw
University College Cork
Total Publications: 24
 
5
Ramsankar Senthamaraikannan
University College Cork
Total Publications: 12
 
6
Tuhin Maity
University College Cork
Total Publications: 19
 
7
Tandra Ghoshal
University College Cork
Total Publications: 32