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Titanium oxide nanoparticle dispersions in a liquid monomer and solid polymer resins prepared by sputtering

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Title: Titanium oxide nanoparticle dispersions in a liquid monomer and solid polymer resins prepared by sputtering
Authors: Porta, Matteo Browse this author
Mai Thanh Nguyen Browse this author
Yonezawa, Tetsu Browse this author →KAKEN DB
Tokunaga, Tomoharu Browse this author
Ishida, Yohei Browse this author
Tsukamoto, Hiroki Browse this author
Shishino, Yuichi Browse this author
Hatakeyama, Yoshikiyo Browse this author
Issue Date: 2016
Publisher: Royal Society of Chemistry
Journal Title: New journal of chemistry
Volume: 40
Issue: 11
Start Page: 9337
End Page: 9343
Publisher DOI: 10.1039/c6nj01624c
Abstract: A transparent resin containing titanium oxide nanoparticles ( NPs) was prepared using a molten matrix sputtering ( MMS) technique. The low vapour pressure of the liquid, pentaerythritol ethoxylate ( PEEL) substrate permits the use of this vacuum technique directly with liquid PEEL under stirring conditions in order to obtain uniform dispersions of NPs. We found that it is possible to synthesize titanium oxide, TiOx, NPs with diameters of less than 5 nm with a controlled composition by simply adjusting the sputtering atmosphere. Furthermore, as the electronic structure of the TiOx NPs changes depending on the particle size, crystallinity and degree of oxidation, we were able to modify the optical properties of PEEL and the resin by embedding TiOx NPs in the matrix. The enhancement of the refractive index of a resin containing TiO2 NPs was also demonstrated. This synthetic method is promising for the advanced preparation of high purity TiOx NPs without using a reducing agent and leaving by-products for various applications in optical devices, energy conversion, and light harvesting in the UV visible region.
Rights: https://creativecommons.org/licenses/by/3.0/
Type: article
URI: http://hdl.handle.net/2115/64004
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 米澤 徹

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