[Figure 1] Professor Hyoungsub Kim (AMSE, co-corresponding author), Dr. Eunha Lee (SAIT, co-corresponding author)The joint research team led by Prof. Hyoungsub Kim (AMSE) and Dr. Eunha Lee (SAIT) first discovered the appearance of highly ordered arrays of 1D intermediate crystals during the chemical transformation of MoO2 to 2D layer-structured MoS2. Recently, for application to next-generation semiconductor and energy devices, numerous researches have been actively conducted to synthesize various 2D layer-structured materials (transition-metal dichalcogenides) via a thermal sulfidation- or selenization-based conversion process of metal oxides. Ideally, such a synthesis process follows sequential layer-by-layer phase transformation characteristics of an atomic layer-level thickness. During the sulfidation process of MoO2, the joint research team directly observed the appearance of highly ordered arrays of 1D intermediate crystals at the MoO2/MoS2 interface using S..

- highest output voltage of BisbTe-based thermoelectric generator - published in ACS Energy Letters on February 2021 [Image] Prof. Jeong Min Baik (School of Advanced Materials Science and Engineering, SKKU) and Prof. Jae Sung Son (School of Materials Science and Engineering, UNIST)   Prof. Baik’s research team and Prof. Son’s research team developed a new technique to increase the output voltage of a thermoelectric generator that does not involve material modification.   Thermoelectric energy-harvesting is a technology that produces useful energy by utilizing temperature differences at both ends of the material when heat is applied from the outside. It has attracted a great deal of research interest due to its simplicity, minimal maintenance requirements, low cost, and reliability. It provides a good solution for sustainable energy generation from ambient heat sources.   So far, various types of TE materials, including Bi2Te3, SnTe,..

 [Figure1] Researcher Young-Been Kim AMSE Young-Been Kim under the Ph.D. program in Prof. Hyung Koun Cho‘s research team fabricated a high-efficient solar energy water splitting system that operates in alternating current (AC) voltage.By designing an electrochemical deposition-based precursor synthesis process in order to micro-control based on thermodynamic morphology of Cu-In-Se (CIS), the research team developed a semiconductor structure where secondary phases coexist through the selenization process. Based on that, the team built the pulse-driven system in which enables high hydrogen evolution.The multiphasic structure has improved the charge transport efficiency due to the expansion of the depletion region formed inside and on the surface of semiconductor electrodes. It can also generate photocurrent at reduction under negative (-) voltage and oxidation under positive (+) voltage due to the presence of multiphase. Consequently, the pulse-driven system is the new mechanis..

Sungkyunkwan University is pleased to announce that it has received 2 Silvers, 4 Bronzes, 1 Special awards at the 27th Samsung Humantech Paper Award.At the award ceremony, Minsu Choi (Advisor: Prof. Jae-Chan Lee) in the Department of Advanced Materials Science Engineering was presented with Silver award within the category of ‘Material Science & Engineering’ and Youngkwan Choi (Co-author: Kyunghoon Ko, Advisor: Prof. Kyung-Min Choi) in the Department of Energy Science received Silver award in the category of ‘Basic Science’.Senghwan Seo (Co-author: Jaejoon Lee, Advisor: Jinhong Park) in the Department of Electrical and Computer Engineering received the Bronze award in ‘Physical Devices & Processes’ sector, Hyunsung Seo (Advisor: Prof. Dong-Hee Sohn) in the Department of Medicine won the Bronze award in ‘Bio Engineering & Life Science’ sector, Junsik Park (Advisor: Prof. Jae-Suk Park) in the Department of Biological Engineering was presented with Bronze award within the..