Original title: Electrostatic assembly of alumina nanoparticles on nanocrystalline diamond films
Authors: Verveniotis, Elisseos ; Kromka, Alexander ; Rezek, Bohuslav
Document type: Papers
Conference/Event: WDS 2011 - Annual Conference of Doctoral Students /20./, Prague (CZ), 2011-05-31 / 2011-06-03
Year: 2011
Language: eng
Abstract: We apply atomic force microscope for local electrostatic charging of oxygen-terminated nanocrystalline diamond (NCD) thin films deposited on silicon, to induce electrostatically driven self-assembly of colloidal alumina nanoparticles into micro-patterns. The NCD films have sub-100 nm thickness and 60% relative sp2 phase content. We characterize charge contrast and stability in air, fluorocarbon oil and water by Kelvin force microscopy. We discuss factors influencing the charging process and demonstrate that the contrast of more than ± 1 V is needed to induce selfassembly of the nanoparticles via coulombic and polarization forces.
Keywords: atomic force microscopy (AFM); electrostatic charging; Kelvin force microscopy (KFM); nanocrystalline diamond; self-assembly
Project no.: CEZ:AV0Z10100521 (CEP), GD202/09/H041 (CEP), LC06040 (CEP), KAN400100701 (CEP), LC510 (CEP), GAP204/10/0212 (CEP)
Funding provider: GA ČR, GA MŠk, GA AV ČR, GA MŠk, GA ČR
Host item entry: WDS'11 Proceedings of Contributed Papers: Part III: Physics, ISBN 978-80-7378-186-6

Institution: Institute of Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0207800

Permalink: http://www.nusl.cz/ntk/nusl-96341


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