Tuning the Properties of Periodic Mesoporous Organosilica Films for Low-k Application by Gemini Surfactants

Murad Redzheb; Oguzhan Orkut Okudur; Sigrid Bernstorff; Krunoslav Juraic; Pascal Van Der Voort; Silvia Armini

doi:10.1002/cphc.201800341

Tuning the Properties of Periodic Mesoporous Organosilica Films for Low-k Application by Gemini Surfactants

Chemphyschem. 2018 Sep 18;19(18):2295-2298. doi: 10.1002/cphc.201800341. Epub 2018 Jun 20.

Authors

Murad Redzheb¹, Oguzhan Orkut Okudur^{1

2}, Sigrid Bernstorff³, Krunoslav Juraic^{4

5}, Pascal Van Der Voort⁶, Silvia Armini¹

Affiliations

¹ Kapeldreef 75, Leuven, 3001, Belgium.
² Department of Materials Engineering, KU Leuven, B-3000, Leuven, Belgium.
³ Elettra-Sincrotrone Trieste, Strada Statale 14, km 163.5, Basovizza (TS), 34149, Italy.
⁴ Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/IV, A-8010, Graz, Austria.
⁵ Ruđer Bošković Institute, Bijenička c. 54, 10000, Zagreb, Croatia.
⁶ Center for Ordered Materials, Organometallics & Catalysis (COMOC) Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281 S3, Ghent, 9000, Belgium.

PMID: 29924463
DOI: 10.1002/cphc.201800341

Abstract

Periodic mesoporous organosilica (PMO) thin films were synthesized by evaporation-induced self-assembly of 1,2-bis(triethoxysilyl)ethane and an ionic Gemini 16-12-16 surfactant under acidic conditions. The films were characterized by Fourier-transform infrared spectroscopy, grazing-incidence small-angle X-ray scattering, ellipsometric porosimetry, impedance measurements, and nanoindentation. The ease of control of the packing parameter in Gemini surfactants makes the PMO film templated by a Gemini an exciting first step towards small pore size PMO films with engineered mesostructures.

Keywords: Gemini surfactants; mesoporous materials; organosilica; self-assembly; thin films.