Large area deposition of ordered nanoparticle layers by electrospray

Bremnen Véliz, Sandra Bermejo, Jordi Vives, Luis Castañer

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Mass production of ordered nanostructures with enhanced optical properties such as colloidal crystals for applications such as solar cells or organic light emitted diodes demands low-cost and large-scale manufacturing techniques. In order to enlarge the deposition area of colloidal crystals, this paper presents the results of two different approaches that use the electrospray technique. Areas as large as 25 cm2 have been achieved by using an array of needles, whereas up to 7.5 cm2 areas were achieved by using an additional focusing electrode placed on the same plane as the needle nozzle. COMSOL simulations have been used as a guide for the set up design. The ordered deposition of the nanoparticles has been assessed by reflectance measurements and SEM/FIB observations.

Original languageEnglish
Pages (from-to)16-21
Number of pages6
JournalColloids and Interface Science Communications
Volume25
DOIs
StatePublished - Jul 2018
Externally publishedYes

Keywords

  • Electrospray
  • Multineedle
  • Nanoparticles
  • Polystyrene
  • Taylor cone

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