研究领域
POLY/NANO/MATER
Current Research Interests
Our research involves developing novel electronic, photonic, magnetic, and catalytic materials based on soft materials including polymers, colloids, and liquid crystals. We particularly interest in utilizing self-assembling natures and nanostructures of soft materials to make them suitable for device applications. For example, diblock copolymers spontaneously form nanometer-sized micelles in a selective solvent for one of the blocks. These micelles can be coated on solid substrates to form a self-assembled nanostructure, which can serve as a nanostructured template to direct the synthesis of an ultrahigh density array of nanoparticles. We also emphasize thin films of soft materials because functional materials should be in the form of thin films in most device applications. We investigate fabrication strategies of controlled and directed nanostructures by adjusting interfaces and surface of thin films of soft materials.
1. Soft Nanomaterials with Electronic, Photonic, Magnetic, and Catalytic Functionalities
- Polymer nanomaterials with metal, semiconductor, oxide nanoparticles
- Block copolymers and their micelles with magnetic and catalytic nanoparticles
- Hierarchical materials of nanostructures in microstructures
- Biomimetic materials
2. Thin Films of Self-Assembling Materials for Device Applications
- Self-assembled polymeric nanotemplates for ultrahigh density arrays
- Nanopatterning with thin films of block copolymers
- Directed self-assembly of nanoparticles on nanostructured templates
- Nanolithography with self-assembled monolayers
近期论文
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"Transferrable superhydrophobic TiO2 nanorods on reduced graphene oxide films using block copolymer templates", Seo, M.-S.; Kim, J.-H.; Kim, S.-S.; Kang, H.; Sohn, B.-H. Nanotechnology 2015, 26, 16, 165302.
"Diblock copolymer micelles as surface-functionalized particles and direct decoration of nanoparticles on their surface", Lee, S.; Kim, H.; Chae, S.; Sohn, B.-H. Polymer 2015, 61, 15-19.
"Surface coverage and size effects on electrochemical oxidation of uniform gold nanoparticles", Han, D.†; Kim, S.-S.†; Kim, Y.-R.; Sohn, B.-H.; Chung, T. D. Electrochemistry Communications 2015, 53, 11-14.
"ZnO nanorods and nanowalls directly synthesized on flexible substrates with block copolymer templates", Kim, J.-H.; Kim, S.-S.; Sohn, B.-H. Journal of Materials Chemistry C 2015, 3, 7, 1507-1512.
"Supracolloidal polymer chains of diblock copolymer micelles", Kim, J.-H.; Kwon, W.; Sohn, B.-H. Chemical Communications 2015, 51, 16, 3324-3327.
"Nanoscale arrangement of diblock copolymer micelles with Au nanorods", Kim, H.; Lim, Y.; Kim, S.; Kim, S.-S.; Sohn, B.-H. Nanotechnology 2014, 25, 45, 455602.
"Fluorescent Topographic Nanopatterns by Fluorophore-functionalized Diblock Copolymers", Lee, J.-K.; Kang, H.; Lee, S.; Choi, I.; Sohn, B.-H. RSC Advances 2014, 4, 78, 41336-41340.
"Tunable decoration of reduced graphene oxide with Au nanoparticles for the oxygen reduction reaction", Kim, S.-S.†; Kim, Y.-R.†; Chung, T. D.; Sohn, B.-H. Advanced Functional Materials 2014, 24, 19, 2764-2771.
"Dual functionalization of nanostructures of block copolymers with quantum dots and organic fluorophores", Chae, S.; Kim, J.-H.; Theato, P.; Zentel, R.; Sohn, B.-H. Macromolecular Chemistry and Physics 2014, 215, 7, 654-661.
"Controlled growth of inorganic nanorod arrays using graphene nanodot seed layers", Kim, Y.-J.†; Kim, S.-S.†; Park, J. B.; Sohn, B.-H.; Yi, G.-C. Nanotechnology 2014, 25, 13, 135609.
"Hydrothermal growth of ZnO microstructures on Ar plasma treated graphite", Kim, Y.-J.; Tukiman, H.; Lee, C.-H.; Kim, S.-S.; Park, J.; Sohn, B.-H.; Kim, M.; Yi, G.-C.; Jung, R.; Liu, C. Current Applied Physics 2014, 14, 3, 269-274.
"Three-dimensional observation of TiO2 nanostructures by electron tomography", Suh, Y. J.; Lu, N.; Park, S. Y.; Lee, T. H.; Lee, S. H.; Cha, D. K.; Lee, M. G.; Huang, J.; Kim, S.-S.; Sohn, B.-H.; Kim, G.-H.; Ko, M. J.; Kim, J.; Kim, M. J. Micron 2013, 46, 35-42.
"Correlation of micellar structures with surface-plasmon-coupled fluorescence in a strategy for fluorescence enhancement", Kim, K.-S.; Kim, H.; Kim, J.-H.; Kim, J.-H.; Lee, C.-L.; Laquai, F.; Yoo, S. I.; Sohn, B.-H. Journal of Materials Chemistry 2012, 22, 47, 24727-24733.
"Simple fabrication of single- and multi-layer polymer nanotubes by spin-casting method within anodized aluminum oxide (AAO) templates", Jin, S.; Lee, Y.; Jeon, S.-M.; Sohn, B.-H.; Chae, W.-S.; Lee, J.-K. Journal of Materials Chemistry 2012, 22, 44, 23368-23373.
"Switching off FRET in the hybrid assemblies of diblock copolymer micelles, quantum dots, and dyes by plasmonic nanoparticles", Kim, K.-S.; Kim, J.-H.; Kim, H.; Laquai, F.; Arifin, E.; Lee, J.-K.; Yoo, S. I.; Sohn, B.-H. ACS Nano 2012, 6, 6, 5051-5059.
"Large area tunable arrays of graphene nanodots fabricated using diblock copolymer micelles", Kim, S.-S.; Choi, J. Y.; Kim, K.; Sohn, B.-H. Nanotechnology 2012, 23, 12, 125301.
"Inversion of diblock copolymer micelles by selective solvents for conversion of gold nanopatterns", Kim, J.-H.; Bae, S. H.; Chae, S.; Sohn, B.-H. Thin Solid Films 2012, 520, 6, 2022-2025.
"Endurance characteristics of amorphous-InGaZnO transparent flash memory with gold nanocrystal storage layer", Jang, J.; Park, J. C.; Kong, D.; Kim, D. M.; Lee, J.-S.; Sohn, B.-H.; Cho, I. H.; Kim, D. H. IEEE Transactions on Electron Devices 2011, 58, 11, 3940-3947.
"Template-assisted fabrication of highly ordered interpenetrating polymeric donor/acceptor nanostructures for photovoltaic applications", Haberkorn, N.; Kim, S.; Kim, K.-S.; Sommer, M.; Thelakkat, M.; Sohn, B.-H.; Theato, P. Macromolecular Chemistry and Physics 2011, 212, 19, 2142-2150.
"Ordered complex nanostructures from bimodal self-assemblies of diblock copolymer micelles with solvent annealing", Jeon, S.-M.; Lee, S. H.; Yoo, S. I.; Sohn, B.-H. Langmuir 2011, 27, 19, 12191-12196.
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