Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries

Cencha, Luisa Guadalupe et al · American Chemical Society · 2025

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Author / responsible party

Cencha, Luisa Guadalupe et al

Publisher

American Chemical Society

Year

2025

ISSN

0743-7463

ISSN

0743-7463

Language

English

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We investigate the drying dynamics of mesoporous silicon bilayers with controlled pore geometries during ethanol evaporation. Using Reflective Interferometric Fourier Transform Spectroscopy (RIFTS), we track the evolution of liquid saturation in each layer. We find that placing smaller pores atop larger ones mimicking an ink-bottle geometry can unexpectedly accelerate evaporation under specific thickness ratios. This behavior suggests a complex interplay of mass transport mechanisms beyond simple geometrical constraints. Additionally, we introduce a novel image-based method for spatiallyresolved saturation mapping over millimeter-scale areas, complementing the localized RIFTS measurements. Our results demonstrate that evaporation dynamics in porous films can be modulated through structural design, providing new experimental tools to study and tailor fluid transport in hierarchical porous materials. Fil: Cencha, Luisa Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina Fil: Benitez, Alesio Nehuén. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina

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APA 7

Cencha, L. G. E. A. (2025). Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries. http://hdl.handle.net/11336/275213

MLA

Cencha, Luisa Guadalupe et al. "Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries." 2025. http://hdl.handle.net/11336/275213.

Chicago

Cencha, Luisa Guadalupe et al. 2025. "Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries.". http://hdl.handle.net/11336/275213.

Harvard

Cencha, L. G. E. A. 2025, Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries, American Chemical Society, available at: http://hdl.handle.net/11336/275213 [Accessed 7 Aug. 2026].

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Resource details

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Title: Directional Drying in Bilayer Porous Films: Funnel vs Ink-Bottle Geometries

Author / contributors: Cencha, Luisa Guadalupe et al

Publisher: American Chemical Society

Publication year: 2025

ISSN: 0743-7463

ISSN: 0743-7463

Language: English

Subjects

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Porous silicon; Liquid evaporation; Bilayer film; Reflectance interferometry; https://purl.org/becyt/ford/1.3; https://purl.org/becyt/ford/1