Electric-Field-Induced Reversible Phase Transitions in Two-Dimensional Colloidal Crystals

Langmuir : the ACS Journal of Surfaces and Colloids
Kelsey A CollinsStephanie S Lee

Abstract

Two-dimensional colloidal crystals confined within electric field traps on the surface of a dielectrophoretic cell undergo reversible phase transitions that depend on the strength of the applied AC electric field. At low field strengths, the particles adopt a two-dimensional hexagonal close-packed lattice with p6m plane group symmetry and the maximum achievable packing fraction of φ = 0.91. Higher electric field strengths induce dipoles in the particles that provoke a phase transition to structures that depend on the number of particles confined in the trap. Whereas traps containing N = 24 particles transform to a square-packed lattice with p4m symmetry and φ = 0.79 is observed, traps of the same size containing N = 23 particles can also pack in a lattice with p2 symmetry and φ = 0.66. Traps with N = 21, 22, and 25 particles exhibit a mixture of packing structures, revealing the influence of lateral compressive forces, in addition to induced dipole interactions, in stabilizing loosely packed arrangements. These observations permit construction of a phase diagram based on adjustable parameters of electric field strength (0-750 V/cm) and particle number (N = 21-25).

References

Jul 1, 1990·Physical Review. B, Condensed Matter·C A MurrayR A Wenk
Sep 6, 2000·Physical Review Letters·K h LinA G Yodh
Oct 14, 2000·Annual Review of Physical Chemistry·R J Hemley
Oct 4, 2003·Physical Review Letters·Eugenia KumachevaGeorge M Whitesides
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Simon O LumsdonOrlin D Velev
May 21, 2005·Physical Review Letters·Antti-Pekka Hynninen, Marjolein Dijkstra
Feb 21, 2006·Physical Review Letters·M T SullivanP M Chaikin
Jun 4, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Y HanA G Yodh
Aug 22, 2008·The Journal of Chemical Physics·Manish MittalEric M Furst
Feb 5, 2009·Analytical and Bioanalytical Chemistry·José I Martínez-LópezBlanca H Lapizco-Encinas
Oct 10, 2009·The Journal of Chemical Physics·Jaime J Juárez, Michael A Bevan
Jan 21, 2011·Nature·Qian ChenSteve Granick
Feb 2, 2013·Science·Jeremie PalacciPaul M Chaikin
Aug 30, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Pengcheng SongMichael D Ward
Mar 8, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Tara D Edwards, Michael A Bevan
Feb 19, 2015·Journal of the American Chemical Society·Pengcheng SongMichael D Ward

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Citations

Aug 2, 2017·Soft Matter·Zhuoqiang JiaStephanie S Lee
Jan 11, 2018·Soft Matter·Isaac Torres-DíazMichael A Bevan
Sep 25, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Zhuoqiang JiaStephanie S Lee
Sep 10, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Cicely ShillingfordMarcus Weck

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