Fabrication of a new type of organic-inorganic hybrid superlattice films combined with titanium oxide and polydiacetylene

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Abstract

We fabricated a new organic-inorganic hybrid superlattice film using molecular layer deposition [MLD] combined with atomic layer deposition [ALD]. In the molecular layer deposition process, polydiacetylene [PDA] layers were grown by repeated sequential adsorption of titanium tetrachloride and 2,4-hexadiyne-1,6-diol with ultraviolet polymerization under a substrate temperature of 100°C. Titanium oxide [TiO2] inorganic layers were deposited at the same temperatures with alternating surface-saturating reactions of titanium tetrachloride and water. Ellipsometry analysis showed a self-limiting surface reaction process and linear growth of the nanohybrid films. The transmission electron microscopy analysis of the titanium oxide cross-linked polydiacetylene [TiOPDA]-TiO2 thin films confirmed the MLD growth rate and showed that the films are amorphous superlattices. Composition and polymerization of the films were confirmed by infrared spectroscopy. The TiOPDA-TiO2 nanohybrid superlattice films exhibited good thermal and mechanical stabilities. © 2012 Yoon et al.

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Yoon, K. H., Han, K. S., & Sung, M. M. (2012). Fabrication of a new type of organic-inorganic hybrid superlattice films combined with titanium oxide and polydiacetylene. Nanoscale Research Letters, 7. https://doi.org/10.1186/1556-276X-7-71

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