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Memorias de investigación
Artículos en revistas:
Electrophoretic Versus Dielectrophoretic Nanoparticle Patterning Using Optoelectronic Tweezers
Año:2017
Áreas de investigación
  • Física química y matemáticas,
  • Ingenierías
Datos
Descripción
Currently, there is increasing interest from many scientific disciplines in the development of systems that are able to sort and arrange many objects in parallel at the nano- and micrometric scale. Among others, photovoltaic tweezers (PVT) are an optoelectronic technique for trapping and patterning nano- and micro-objects in accordance with an arbitrary light profile. In this work, the differential features of electro- and dielectrophoretic (EP and DEP) nanoparticle (NP) patterning using PVT are deeply investigated. The study is carried out through theory and experiments. The developed theory extends the applicability of a previously reported model to be able to compute EP potentials and to obtain numerical values for the EP and DEP potential energies. Two-dimensional patterns of charged and neutral aluminum NPs are fabricated on top of Fe?LiNbO3 crystals, and different light distributions and other experimental parameters (crystal thickness and NP concentration) are compared. Patterns of charged and neutral NPs show remarkable differences in both particle density distribution and fidelity to the original light profile. The observed different features between EP and DEP trapping are satisfactorily explained by the theoretical analysis. The results provide routes for the optimization of the NP arrangements for both regimes.
Internacional
Si
JCR del ISI
Si
Título de la revista
Physical Review Applied
ISSN
2331-7019
Factor de impacto JCR
4,061
Información de impacto
Volumen
7
DOI
10.1103/PhysRevApplied.7.064027
Número de revista
Desde la página
064027
Hasta la página
064027-9
Mes
SIN MES
Ranking
Q1
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Juan Francisco Muñoz Martinez (UPM)
  • Autor: Jose Bruno Ramiro Diaz (UPM)
  • Autor: Angel Manuel Alcazar de Velasco Rico (UPM)
  • Autor: Mercedes Carrascosa Rico (Universidad Autónoma de Madrid)
  • Autor: Ángel García Cabañes (Universidad Autónoma de Madrid)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: MECANO: Investigación didáctica en la Ingeniería Mecánica
  • Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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