Fabrication of Hierarchically Structured Porous Films of Metal Oxides and Carbonates Through Coffee Ring Effect

Sachin Khapli, Ina Rianasari, Sudhir Sharma, Tom Blanton, Ramesh Jagannathan

Research output: Contribution to journalArticle


We report a versatile method for the fabrication of hierarchically structured porous ceramic films through a non-vacuum, aerosol-based deposition technique. Our method consists of evaporation of CO2-enriched water microdroplets containing dissolved organic salts and yields a variety of porous scaffolds with micron-sized pores. In addition, the films are characterized by a hierarchy of structural features, such as nanowires, nanorods, 2-dimensional crystals, or nanopores. This scalable, environment-friendly method is applicable to a wide variety of ceramic materials and can lead to materials with an improved performance in catalysis, sensors, solar cells, fuel cells, and tissue engineering.

Original languageEnglish (US)
Pages (from-to)362-368
Number of pages7
JournalMaterials Today: Proceedings
Issue number2
StatePublished - Jan 1 2016



  • Calcium carbonate
  • Hierarchically porous materials
  • Nanowires
  • Two-dimensional crystals
  • Zinc oxide

ASJC Scopus subject areas

  • Materials Science(all)

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