seminar/talk program

2619

Following scientists will deliver/delivered talk in CDC. Your presence is highly appreciated

Prof. Dr. Masaki Tanemura, Nagoya Institute of Technology, Japan. Title of the talk: Challenge to the controllable synthesis of nanocarbon based on in-situ TEM
Date and time: May 26th 2019, 2 pm.

Masaki Tanemura received the Ph.D. degree from Nagoya Institute of Technology (NITech), Japan.  He is currently a Professor and Deputy Head of Department at NITech.  His current research interest includes the low temperature synthesis of low-dimensional nanomaterials and their applications to transparent and flexible devices, energy-related devices and nanoprobes, as well as the in-situ visualization of the growth process in the atomic scale.  His achievements are published as more than 280 papers in international journals, 9 book chapters, 15 patents (including 4 US and European patents), and 1 commercial product.  He was awarded Encouragement Award from Japan Institute of Invention and Innovation in 2013, and received the Prizes for Science and Technology (Research Category) in the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology (MEXT) in 2019.

Abstract: Graphitized nanocarbon, such as carbon nanotubes (CNTs) and graphene, is one of the key materials in nanotechnology and nanodevices of next generation.  For their practical applications, their controllable synthesis in crystallinity (quality), size, growth position, growth temperature should be achieved.  Towards the growth controllability, we are tackling the elucidation of the growth process in atomic scale by in-situ transmission electron microscope (TEM) observations using amorphous carbon nanofibers (CNFs) which include various catalyst metal nanoparticles.  In this in-situ TEM, transformation from amorphous carbon to CNT and graphene due to the current flow in the CNF can be easily observable while measuring the change in the electrical property of the CNFs .Among the various catalyst metals surveyed, low-melting point metals, such as Sn and In, which are rarely used for the conventional chemical vapor deposition, were found to be promising for the low temperature growth of graphene.  Based on this findings, stacked films of Sn/C or In/C were deposited onto oxide substrates, and were simply annealed at 150-250oC in vacuum.  As confirmed by Raman analyses, graphene grew even at a temperature as low as 150oC by this simple method.

Dr Santosh Tiwari, Postdoctoral fellow Dept. of Mechanical Engineering, Seoul Campus Hanyang University, Seoul, South Korea. Title of the talk: SYNTHESIS AND DISPERSION OF GRAPHENE OXIDE/REDUCED GRAPHENE OXIDE IN POLYMER BLENDS FOR ENHANCED THERMOMECHANICAL PROPERTIES Date and time: April 12th 2019, 1-2 pm. 

Dr Santosh Aryal, Assistant professor, Kansas State University, USA. Title of talk: Rationale design of polymeric nanoparticle for diagnosis and therapy of cancer.Date/time: 7th June 2018/1-2 pm

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