Background

Developing new energy materials is a key step toward satisfying the needs for next-generation energy conversion and storage devices. Complex oxides are widely used in many energy technologies owing to their fascinating properties, including electrocatalytic activity, and ionic and electronic conductivity. In particular, a new class of nanostructured oxide materials can yield many intriguing physicochemical properties that are unattainable in the bulk oxides, and thus have become critical to improve the performance of many energy devices, such as fuel cells, batteries, solar cells, and thermoelectric devices.

Dr. Lee's research interests lie at the intersection of synthesizing functional oxide materials by atomic control, understanding energy conversion and storage mechanisms as well as the physicochemical properties of materials, and applying a fundamental understanding to design advanced energy conversion and storage devices including solid oxide fuel cells, solid-state batteries, solar thermoelectric generators, and solar to fuel energy conversion devices.

Education

• Ph.D., Mechanical Engineering, Massachusetts Institute of Technology, USA, 2014.
• M.S., Materials Science and Engineering, Gwangju Institute of Science and Technology, South Korea, 2006.
• B.S., summa cum laude, Materials Science and Engineering, Hanyang University, South Korea, 2004.

Selected Publications

• T. Meyer*, R. Jacobs*, D. Lee*, L. Jiang, J. Freeland, T. Egami, D. Morgan, and H. N. Lee (* equal contribution), “Strain Control of Oxygen Kinetics in the Ruddlesden-Popper Oxide La1.85Sr0.15CuO4”, Nature Communication 92 (2018) DOI:10.1038/s41467-017-02568-z
• O. Kwon, D. Seol, D. Lee, H. Han, I. Lindfors-Vrejoiu, W. Lee, S. Jesse, H. N. Lee, S. Kalinin, M. Alexe, and Y. Kim, “Direct Probing of Polarization Charge at the Nanoscale”, Advanced Materials 30, 1703675 (2018) DOI: 10.1002/adma.201703675
• D. Lee, R. Jacobs, Y. Jee, A. Seo, C. Sohn, A. Ievlev, O. Ovchinnikova, K. Huang, D. Morgan, and H. N. Lee, “Stretching Epitaxial La0.6Sr0.4CoO3-δ for Fast Oxygen Reduction”, The Journal of Physical Chemistry C 121, 25651 (2017) DOI: 10.1021/acs.jpcc.7b06374
• A. Herklotz, D. Lee, E. Guo, T. Meyer, J. Petrie, H. N. Lee, “Strain Coupling of Oxygen Non-stoichiometry in Perovskite Thin Films”, Journal of Physics: Condensed Matter 29, 493001 (2017) DOI: 10.1088/1361-648X/aa949b
• D. Lee and H. N. Lee, “Controlling oxygen ion migration in Ruddlesden-Popper oxides”, Materials (joint special issue on electrochemistry of perovskites), Feature Article, 10, 368 (2017) DOI:10.3390/ma10040368
• A. Huon, D. Lee, A. Herklotz, M. Fitzsimmons, H. N. Lee, and S. May, “Effects of Chemical Pressure on the Structural and Electronic Transport Properties in Ca1-xSrxMn7O12”, APL Materials, 5, 096105 (2017) DOI:10.1063/1.4994089
• D. Lee, X. Gao, L. Fan, E. Guo, T. Farmer, M. Fitzsimmons, M. Chisholm, and H. N. Lee, “Non-equilibrium synthesis of highly porous single-crystalline oxide nanostructures”, Advanced Materials Interfaces, Cover Article, 4 (2017) DOI: 10.1002/admi.201601034