Research

“We nanoscientists are also changing the world, by one nanometer at a time.”

Nanomaterials Synthesis

The basis of our research interest spans from the conventional wet chemical synthesis of metal, ceramic, or organic nanoparticles to the development of novel synthetic pathways for MXenes, emerging 2-dimensional transition metal carbides.

Read: (templated synthesis) Chem. Rev. 2011, 111, 3736.; Chem. Mater. 2020, 32, 2843.; (wet chemical approaches) Nat. Mater. 2004, 3, 891.; Acc. Chem. Res. 2020, 53, 2020. (top-down MXene synthesis) Chem. Mater. 2017, 29, 7633.

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Molecular and Colloidal Assemblies and Superstructures

Looking at those pretty and interesting nanoparticles, I recall a Korean proverb that goes: "It takes more than pearls to make a necklace (the pearls have to be strung and assembled)." Even if there are plenty of nanoparticles of potentially useful features, when we get to bring them to our desired use, the nanoparticles have to be set on designated positions or assembled by themselves. Our lab is intended to develop physical and chemical strategies to assemble nanomaterials and massive molecules, spanning from inorganic nanoparticles to polymers, lipids, or proteins, into periodic superstructures. How exciting to see the novel optical, electrical, and mechanical properties of the superstructures coming from the collective and synergistic effects of individual building blocks!

Read: J. Am. Chem. Soc. 2017, 139, 6831.; Nano Lett. 2018, 18, 6022.; Adv. Mater. 2019, 31, 1805480.

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Urgent Opening:
Highly Conductive Nanomaterials for Electromagnetic Interference Shielding

5G network has been rapidly approaching and changing our daily lives. Devices (electric mobilities, communication devices, etc.) are now communicating with each other by super high frequency electromagnetic waves, and we are in need of effective shielding strategies for these signals from interrupting. Our major goal is to provide materials basis of electromagnetic interference (EMI) shielding properties, focusing on nanomaterials that can blend into general uses: polymers, paints, wires, and others. Our collaborative team at KIST investigates MXene materials as an ideal candidate for such uses, for their atomic scale dimensions, high electrical conductivities, and good processibility, and searching for nanomaterials of similar or superior performances.

Read: Science 2016, 353, 1137.; Science 2020, 369, 446.

Contact us for more information about ongoing works.