Electrophoretic deposition of nickel zinc ferrite nanoparticles into microstructured patterns | Zendy

Stefan J. Kelly | Zendy; Wen Xiao | Zendy; David P. Arnold | Zendy; Jennifer S. Andrew | Zendy

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Electrophoretic deposition of nickel zinc ferrite nanoparticles into microstructured patterns

Author(s) -

Stefan J. Kelly,

Wen Xiao,

David P. Arnold,

Jennifer S. Andrew

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943150

Subject(s) - photoresist , coercivity , materials science , nickel , nanoparticle , ferrite (magnet) , electrophoretic deposition , zinc , silicon , saturation (graph theory) , electric field , magnetization , deposition (geology) , metallurgy , composite material , optoelectronics , nanotechnology , magnetic field , coating , condensed matter physics , layer (electronics) , paleontology , physics , mathematics , combinatorics , quantum mechanics , sediment , biology

Using DC electric fields, nickel-zinc ferrite (Ni0.5Zn0.5Fe2O4) nanoparticles (Dh =16.6 ± 3.6 nm) are electrophoretically deposited onto silicon substrates to form dense structures defined by photoresist molds. Parameters such as electric field, bath composition, and deposition time are tuned to produce films ranging in thickness from 177 to 805 nm. The deposited films exhibit soft magnetic properties with a saturation magnetization of 60 emu/g and a coercivity of 2.6 kA/m (33 Oe). Additionally, the influence of the photoresist mold on the deposit profile is studied, and patterned films with different shapes (lines, squares, circles, etc.) are demonstrated with feature sizes down to 5 μm

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