제  목 : The Pleasure of Finding Things Out with Correlative Nanoscopy

연  사 : 정문석 교수(한양대학교)

일  시 : 2024년 4월 18일(목) 오후 4시 30분

장  소 : 화학관 2층 330226호실

The Pleasure of Finding Things Out with Correlative Nanoscopy

Mun Seok Jeong

Department of Physics, Hanyang University, Seoul 04763, Republic of Korea

http://nanoscopy.hanyang.ac.kr

mjeong@hanyang.ac.kr

In recent years, there has been a growing interest in two-dimensional (2D) nanomaterials such as transition metal dichalcogenides and metal monochalcogenides to overcome the limitations of conventional materials. Research on the realization of inorganic flexible optoelectronic devices with atomic-scale thicknesses using the unique properties of 2D nanomaterials is actively proceeding, and the possibility of their application as quantum light sources using defects is also attracting attention. In order to expand the applicability of these 2D nanomaterials, it is essential to understand and control the inevitable defects that occur during the growth process. In this talk, I will introduce the study of defects in 2D nanomaterials through tip-enhanced Raman scattering and artificial intelligence spectroscopy.

1.   “Probing Bilayer Grain Boundaries in Large Area Graphene with Tip-Enhanced Raman Spectroscopy“ Advanced Materials 29, 7, 1603601 (2017). Kyoung-Duck Park, Markus B. Raschke, Joanna M. Atkin, Young Hee Lee, and Mun Seok Jeong*

2.   “Unveiling Defect-Related Raman Mode of Monolayer WS2 via Tip-Enhanced Resonance Raman Scattering“ ACS Nano 12, 10, 9982-9990 (2018). Chanwoo Lee, Byeong Geun Jeong, Seok Joon Yun, Young Hee Lee, Seung Mi Lee*, and Mun Seok Jeong*

3.   “Investigating heterogeneous defects in single-crystalline WS2 via tip-enhanced Raman spectroscopy“ npj 2D Materials and Applications 6, 67 (2022) Chanwoo Lee, Byeong Geun Jeong, Sung Hyuk Kim, Dong Hyeon Kim, Seok Joon Yun, Wooseon Choi, Sung-Jin An, Dongki Lee, Young-Min Kim, Ki Kang Kim, Seung Mi Lee*, and Mun Seok Jeong*

4.   “Explainable Artificial Intelligence Approach to Identify the Origin of Phonon-Assisted Emission in WSe2 Monolayer“ Advanced Intelligent Systems 5, 7, 2200463 (2023) Jaekak Yoo, Youngwoo Cho, Byeonggeun Jeong, Soo Ho Choi, Ki Kang Kim,Seong Chu Lim, Seung Mi Lee,* Jaegul Choo,* and Mun Seok Jeong*

5.   “Probing the multi-disordered nanoscale alloy at the interface of lateral heterostructure of MoS2–WS2” Nanophotonics 13, 7 (2024) Dong Hyeon Kim, Chanwoo Lee, Sung Hyuk Kim, Byeong Geun Jeong, Seok Joon Yun, Hyeong Chan Suh, Dongki Lee, Ki Kang Kim, and Mun Seok Jeong*

* 졸업논문 교과목 수강자 세미나 필수 참석 안내
석사, 석박통합, 박사과정이 수강하는 <졸업논문연구학점 1~6>수강자는 학과에서 개최하는 목요일 정규세미나에 반드시 참석해야함.

관련공지(skku.edu)https://skb.skku.edu/chem/News/notice.do?mode=view&articleNo=146936&article.offset=10&articleLimit=10)