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Title: Comparing highly ordered monolayers of nanoparticles fabricated using electrophoretic deposition: Cobalt ferrite nanoparticles versus iron oxide nanoparticles

Ordered assemblies of nanoparticles remain challenging to fabricate, yet could open the door to many potential applications of nanomaterials. Here, we demonstrate that locally ordered arrays of nanoparticles, using electrophoretic deposition, can be extended to produce long-range order among the constituents. Voronoi tessellations along with multiple statistical analyses show dramatic increases in order compared with previously reported assemblies formed through electric field-assisted assembly. As a result, based on subsequent physical measurements of the nanoparticles and the deposition system, the underlying mechanisms that generate increased order are inferred.
 [1] ;  [2] ;  [3] ;  [3] ;  [4]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States); Brown Univ., Providence, RI (United States)
  2. SUNY Korea, Incheon (South Korea); Stony Brook Univ., Stony Brook, NY (United States)
  3. Brown Univ., Providence, RI (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0013-4651; KC0403020
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 162; Journal Issue: 11; Journal ID: ISSN 0013-4651
The Electrochemical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
77 NANOSCIENCE AND NANOTECHNOLOGY electrophoretic deposition; iron oxide; cobalt ferrite; nanoparticles; Center for Functional Nanomaterials; directed assembly; Voronoi tessellation