Graduate Students at Physics Department Won the Best Poster Presentation Award at an International Academic Conference
- Date2024.01.05
- 4220
(From the left) Jihyeon Kim, Hyein Lee, Yugyeong Je, Nguyen Thi Anh, Chau Ngoc-Quynh Bui, and Seoyoung Lim
Jihyeon Kim (Adviser: William Jo), Hyein Lee (Adviser: Taeyoung Choi), Yugyeong Je (Adviser: Sang Wook Lee), Nguyen Thi Anh (Adviser: Dong-Wook Kim), Chau Ngoc-Quynh Bui (Adviser: Andreas Heinrich), and Seoyoung Lim (Adviser: Dong-Wook Kim) in the MS-Ph.D. combined course of the Physics Department won the Best Poster Presentation Award in the International Conference on Advanced Materials and Devices (ICAMD) at Jeju Island (December 4th-8th, 2023).
The ICAMD is a biennial international academic conference of the Applied Physics Division in the Korean Physical Society, attended by 1,164 participants from 22 countries this year. Researchers at home and abroad could share their academic accomplishments and network with one other, and 839 papers on topics gaining traction by physicists – two-dimensional van der Waals materials, nanomaterial and nanoparticle, organic electronics and photoconductive device, neuromorphic device, energy material and device, quantum information, and AI – were presented. In the poster presentation session for strengthening the academic excellence of future-generation researchers, six graduate students from the Physics Department at Ewha Womans University, out of forty-two winners, won the Best Poster Presentation Award.
Jihyeon Kim presented the research poster titled “Fermi Level Tunning of α-FAPbI3 Perovskite via Interface Engineering for Highly Efficient Perovskite Solar Cells” and won the Best Poster Presentation Award. The research correlates the interface property between perovskite and electron transport layers with the efficiency of perovskite solar cells.
Hyein Lee presented a poster titled “Optimization for Optical Setup for Trapping Yb171+ in a Blade Trap.” She used Yb171 ion as a qubit, the basic unit of information in a trapped-ion quantum computer, and controlled the quantum state with a microwave to find out that the energy gap between each state increases proportionally to the external magnetic intensity because of the Zeeman effect.
Yugyeong Je presented a poster titled “Observation of Mechanical Resonance Mode in Mass-loaded Graphene Nano-electromechanical Drums.” She used the focused ion beam technique to observe the changes in mechanical resonance mode when tungsten nanostructures of various heights were placed on the various locations of Graphene Nano-electromechanical Drums.
Nguyen Thi Anh presented a poster titled “Lithography-free WS2-based Vertical Heterostructure Photovoltaic Devices.” She gained attention for making photovoltaic devices of high efficiency by making Schottky junctions of Au/WS2 and multilayer/Ag without going through the lithography process.
Chau Ngoc-Quynh Bui presented a poster titled “Probing Picoelectronvolt Avoided Level Crossing in a Single Atom with Deterministic Nuclear Spin States.” She demonstrated that electron-spin polarization is just a few picoelectronvolt by spotting the Landau-Zener effect in a single atom of Holmium on the surface of magnesium oxide with a spin-polarized scanning tunneling microscope.
Seoyoung Lim presented a poster titled “Plasmon-exciton coupling behaviors in WS2 multilayer flakes on Au-nanogratings.” She studied a strong coupling of plasmon and exciton with an Au-nanograting, an optoelectronic device made with blu-ray disc, topped with WS2 multilayer, a next-generation semiconductor material.