Event Details

Semiconductors and Microelectronics Technology - Takhee Lee, Monday, October 6th at 1:30pm in RTH 306

Mon, Oct 06, 2025
1:30 PM - 3:00 PM
Location: RTH 306
Speaker: Takhee Lee, Department of Physics and Astronomy, Seoul National University, Korea

Talk Title: Molecular-scale Electronic Devices

Series: Semiconductors & Microelectronics Technology

Abstract: The idea of utilizing individual molecules as the electronic device components has generated tremendous attention in both the basic transport physics and potential technological applications of molecular electronics. But, fabrication of stable and reliable molecular junctions has been a long-standing challenge in molecular electronics. In this talk, I will review our group’s research effort towards fabrication and characterization of high-yield molecular electronic junctions with device functionalities. Specifically, I will explain the recent research work in which vertical large-area molecular junction transistors using self-assembled monolayers (SAMs) enables orbital gating of molecules [1]. And then, when time allows, I will give a brief overview of our research work on two-dimensional (2D) materials-based electronic devices, especially on the surface charge transfer doping method for these devices [2].
References
[1] D. Kim et al., “Enhanced gating efficiency in vertical mixed molecular transistors with deep orbital level”, Sci. Adv. 11, eadt3603 (2025).
[2] J. Jang et al., “Reduced dopant-induced-scattering in remote charge transfer doped MoS2 field-effect transistors”, Sci. Adv. 8, eabn3181 (2022).

Biography: Takhee Lee is currently a Professor in Department of Physics and Astronomy, Seoul National University (SNU), Korea. He received his B.S. and M.S. degree in physics at SNU, Korea in 1992 and 1994, respectively, and he received his Ph.D. degree in physics at Purdue University, USA in 2000. He was a postdoctor at Yale University, USA until 2004. He was a faculty in Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, Korea until 2011. His researches at SNU are characterization of the electrical properties of structures involving single molecules, self-assembled monolayers, polymers, perovskites, semiconductor nanomaterials, and their assembly into electronic devices. He has edited 2 books, written 11 book chapters, 23 review articles, and more than 300 journal articles. He was awarded with Korea Science Award (2018), Korean Physical Society Research Award (2016), Outstanding Research Award in SNU (2014), Best Thesis Advisor Award in Physics (2012), Korean Scientist of the Month Award (2010), Prime Minister Award (2010), and Minister of Education, Science and Technology Award (2008, 2010). He is a member of Korean Academy of Science and Technology (since 2022). He is currently Editorial Board Members in ACS Nano and Nanotechnology.

Host: Joshua Yang, Chongwu Zhou, Steve Cronin and Wei Wu