The 7th Global Conference on Materials Science and Engineering (CMSE2018)
November 1st-4th, 2018, Xi'an, Shaanxi, China
Keynote Speakers
Prof. Sigitas Tamulevičius
Member of the European Materials Research Society
Professor of the Physics Department, Kaunas University of Technology (KTU), Republic of Lithuania

Speech Title: 2-D nanostructures for sensor applications
Abstract: Two types of ordered nanoparticle systems (linearly arranged nanoparticles in 1- D periodic structures either 2-D nanometer structures of nanoparticles) as potential building blocks for optical sensors or catalytic applications will be presented exploring both top-down and bottom-up approaches. In the top - down approach, reactive magnetron sputtering (high-power impulse magnetron sputtering mode-HIPIMS) of silver target was used to deposit thin films of diamond like carbon (DLC) nanocomposites including silver nanoparticles. Analysis of optical and electrical properties of thin DLC based silver nanocomposites (DLC:Ag) as well as effects of thermal treatment will be shortly presented. Structuring features of the nanocomposites using reactive ion sputtering combined with nanoimprint lithography or femtosecond laser irradiation was used to produce 1-D or 2-D submicron structures of DLC:Ag. Influence of plasma parameters applied during reactive ion etching as well as role of laser beam parameters like fluence, polarization were studied systematically paying attention to the evolution of 2-D system of nanoparticles.
Alternatively (bottom-- up approach), 2-D submicron system of silver nanoparticles was produced applying capillary assisted particle assembly (CAPA) method. Response of colloidal solution of silver nanocubes with edge dimensions ranging from few to tenth nanometers were studied applying pump-probe spectroscopy and UV-Vis spectroscopy. Applying different types of templates produced by holographic lithography either e-beam lithography, 2-D systems of silver nanocubes was produced employing an original CAPA setup. Role of different solvents, humidity and substrate temperature were studied to produce highly ordered 2-D nanometer structures. Pump probe spectroscopy experiments indicate that such kind of nanostructures potentially ensure highly beneficial conditions for catalytic applications.


Dr. William M. Cox
Director and Principal Consultant, Corrosion Management Limited, UK



Dr. Alexander Khotsianovsky
Pisarenko Institute of Problems of Strength of the National Academy of Sciences of Ukraine, Ukraine



The 7th Global Conference on Materials Science and Engineering (CMSE 2018)
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