Da Hin Kim

Post-doctoral Scholar
Email: dahin@seas.upenn.edu
Phone: (617) 406-9190

220 S 33rd St
Towne 345
Philadelphia, PA, 19104

Current Research

My current research in the Osuji lab is focused on realizing high-fidelity alignment of anisotropic nanocrystals in organic matrix such as liquid crystals (LC) and LC-block copolymers. Introduction of LC to control orientation of nanocrystals will enable the realization of high performance hybrid materials that are fabricated using scalable methods. Further, understanding the hybrid self-assembly will facilitate the generation of new fundamental science regarding directed assembly and structure-property relationships in hybrid materials.

Figure 1: (a) Objective of my research: fabrication of long-range ordered anisotropic nanoparticle-liquid crystal hybrid composites beyond the limit of previous isotropic composite systems. (b) Recently achieved photoluminescence anisotropy and dynamic magnetic field alignment of CdSe@ZnS nanoplatelets dispersed in a liquid crystalline polymer matrix. The reversible alignment of optically active 2-dimensional nanoparticles opens a new opportunity to develop programmable nanostructures for photonic applications.

Past Research

I acquired Ph.D. in Chemical Engineering at Korea Advanced Institute of Science and Technology (KAIST). My Ph.D. thesis was focused on colloidal synthesis and self-assembly of semiconductor nanocrystals to enhance the ensemble optical and electrical properties. Before joining this group, I did research in Tisdale group at MIT to understand physical and optical properties of anisotropic nanocrystals using optical spectroscopy.