Academic Activities

Ph.D. Thesis

Investigation on Electronic Structural Properties and Their Tuning of Two-dimensional Halide Perovskites

Ph.D. Dissertation, Department of Physics, Yonsei University, 2025.

First Author Publications

• Kim, K., Kwon, N., Park, S., Kim, W., Kim, S, ... & Park, S. (2025). Exciton Binding Energy Renormalization in 2D Perovskites: An Extended Keldysh Framework. Advanced Function Materials (Submitted) 

• Kim, K., Kang, D., Blumstengel, S., Morales, N. Z., List-Kratochvil, E. J., Cho, S. W., ... & Yi, Y. (2023). Enhancing photostability of 2D Ruddlesden–Popper perovskite via molecular acceptor passivation of metallic lead defects. Applied Physics Reviews, 10(4). (Selected as featured article)

• Kim, K., Park, C., Cha, E., Kang, D., Park, J., Cho, S., ... & Park, S. (2023). Impact of light illumination on the surface structure of two-dimensional Ruddlesden–Popper perovskite in the fabrication process. Journal of Physics: Energy, 5(2), 024011.

Co-Author Publications

- 2025 -

• Moon, J., Kim, K., Kim, J., Park, S., Yi, Y., Woo, J., & Kang, S. (2025). Non-planar ALD-NbOx Neurons for Oscillatory Neural Network Applications. Advanced Intelligent Systems (Submitted)

• Kim, S., Kim, K., Ha, A., Yoon, E., Pak, S., ... & Park, S. (2025). Kinetics Control of Mithrene Formation in a High-Pressure Inert Environment: A Robust Solvent-Free Route. ACS Applied Materials & Interfaces (Submitted)

• Ok, E., Chung, S., Kim, S. H., Kim, K., Park, S., Kim, H., ... & Cho, K. (2025). Accompanying Structural Transformations in Polarity Switching of Heavily Doped Conjugated Polymers. Advanced Materials, 2505945.

• Kim, B., Park, J., Kang, D., Jung, N. E., Kim, K., Ryu, H., ... & Yi, Y. (2025). Tuning electronic structure and carrier transport properties through crystal orientation control in two-dimensional Dion-Jacobson phase perovskites. Nano Convergence, 12(1), 1.

• Lee, J. Y., Jun, S. E., Shim, J. H., Kang, H. S., Kim, C., Kim, K., ... & Lee, C. H. (2025). Wafer‐Scale Semitransparent MoS2/WS2 Heterojunction Catalyst on a Silicon Photocathode for Efficient Hydrogen Evolution. Small, 21(1), 2407650.

- 2024 -

• Kwon, N., Song, S. H., Jin, J., Kim, S., Kim, K., Hwang, G. W., ... & Park, S. (2024). The influence of ligands passivation on strength of Fermi level pinning in the quantum dots interface. Applied Surface Science, 664, 160235.

• Lee, J. H., Kang, S. Y., Yeon, C., Yang, J. H., Jung, J., Tan, K. C., ... & Moon, J. (2024). Wide process temperature of atomic layer deposition for In2O3 thin-film transistors using novel indium precursor (N, N′-di-tert butylacetimidamido) dimethyllindium. Nanotechnology, 35(37), 375701.

• Lee, J. H., Moon, J., Kim, K., Yi, Y., Park, S., Yang, J. H., ... & Kang, S. Y. (2024). Benzylphosphonic acid treated ultra-thin ALD-InO x for long term device stability. Journal of Materials Chemistry C, 12(31), 11928-11937.

Conference Presentations

Oral Presentations

• "Interface Electronic Structures in Two-Dimensional Perovskites: Focusing on Doping and Energy Level Alignment", European Society for Quantum Solar Energy Conversion, Rauris, Austria, Mar. 2025

• "Photoinduced surface degradation mechanism of two-dimensional Ruddlesden-Popper perovskite and its passivation by charge extraction", Korean Physical Society Fall Meeting, Changwon, Korea, Oct. 2023 (Awarded)

Poster Presentations