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Clinical Pharmacology & Biopharmaceutics | ISSN : 2167-065X
Volume 7
September 18-19, 2018 | Amsterdam, Netherlands
6
th
European Biopharma Congress
Euro Biopharma 2018
1D and 2D materials, flexible electrodes and tunable surfaces
Eui-Hyeok Yang
Stevens Institute of Technology, USA
I
will present three of our primary research topics, as each relates to 1D/2D materials, substrates and surfaces. First, I will focus on our
investigation of chemical vapor deposition (CVD)-growth of transition metal dichalcogenides (TMDs) as well as their heterostructures,
and characterization to illuminate the role of dissimilar 2D substrates in the prevention of interior defects in TMDs. We further demonstrate
the epitaxial growth of TMDs on hBN and graphene, as well as vertical/lateral heterostructures of TMDs, uniquely forming in-phase 2D
heterostructures. This research provides a detailed observation of the oxidation and anti-oxidation behaviors of TMDs, which corroborate
the role of underlying 2D layers in the prevention of interior defects in TMDs. If the technique could be developed to be highly reliable
and high fidelity, it could have a large impact on the future research and commercialization of TMD-based devices. The second research
area concerns our development and application of flexible electrodes and energy storage toward wearable and multifunctional electronics.
Here, we develop a facile fabrication technique utilizing vertically aligned carbon nanotubes (VACNTs), which enables high-throughput
fabrication of flexible electrodes. For example, our structure shows a high flexibility and stability during stretching up to 20% and bending
up to 180 degrees, promising for various flexible electronics applications. Lastly, we investigate and utilize smart polymer functional
surfaces using dodecylbenzenesulfonate-doped polypyrrole (PPy (DBS)); we demonstrate a novel
in situ
control of droplet pinning on
the polymer surface, enabling the control of droplet adhesion from strongly pinned to extremely slippery (and vice versa). The pinning of
organic droplets on the surfaces is dramatically controlled
in situ
, presenting great potential for manipulation and control of liquid droplets
for various applications including oil separation, water treatment and anti-bacterial surfaces. We believe that our work represents a major
advance in materials science and engineering, especially pertaining to those topics that involve functional and tunable surfaces.
eyang@stevens.eduClin Pharmacol Biopharm 2018, Volume:7
DOI: 10.4172/2167-065X-C1-029