Wetting properties of silicon mesh microchannels coated with SiO 2/SnO2 nanoparticles using layer-by-layer nano self assembly

T. Zhang, B. McDonald, Tianhong Cui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The wetting property of silicon mesh microchannels which are coated with SiO2/SnO2 nanoparticles is investigated in this paper. The SiO2/SnO2 bi-layer were prepared using layer-by-layer nano self assembly. It was found that the silicon mesh channels were superhydrophilic and demonstrated powerful capillary forces. The capillary rise rate was tested by measuring the front location of liquid on the silicon mesh surface that was laid on a 45 degree inclined platform. As for the silicon mesh 25 mm by 25 mm, when the width of microchannels is 0.5 mm, the liquid front can reach the top edge of a sample in approximately 30 seconds.

Original languageEnglish (US)
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages397-400
Number of pages4
DOIs
StatePublished - Dec 11 2009
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: Jun 21 2009Jun 25 2009

Other

OtherTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Country/TerritoryUnited States
CityDenver, CO
Period6/21/096/25/09

Keywords

  • Capillary
  • Layer-by-layer nano self-assembly
  • SiO/SnO bi-layers
  • Wetting property

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