| 학회 | 한국재료학회 |
| 학술대회 | 2019년 가을 (10/30 ~ 11/01, 삼척 쏠비치 호텔&리조트) |
| 권호 | 25권 2호 |
| 발표분야 | 특별심포지엄8. 2차원 하이브리드 물질의 에너지·센서 응용 기술 심포지엄-오거나이저:이철호(고려대) |
| 제목 | Synthesis of tunable 2D TMDs and their applications in opto-electronics and rechargeable batteries |
| 초록 | Recent advances in atomically thin two-dimensional transition metal dichalcogenides (2D TMDs) have led to a variety of promising technologies for nanoelectronics, energy storages, and electro-catalysis, to name a few [1]. The 2D TMDs have recently been reported to exhibit superior properties for the energy conversion and opto-electronics. The rich chemistry of 2D TMDs combined with engineering of their electronic structures make these materials very attractive for applications in electronics and energy storages. This talk will present two important subjects; (1) Synthesis and engineering of 2D TMDs, (2) 2D MoS2 protective layer for Li-metal and its application in rechargeable batteries - we observe that 2D MoS2 coated Li-metal demonstrated a three-fold improvement in cycle-life than using bare Li-metal. The large-scale synthesis of 2D TMDs and their tunable opto-electronic properties and atomic layer passivation of 2D MoS2 on Li-metal could empower a great deal of flexibility in designing atomically thin optoelectronic devices and future Li-metal based rechargeable batteries. [2]. 1. Recent development of 2D materials and their applications, W Choi, N Choudhary, J Park, D Akinwande, Y Lee, Materials Today, 116-130, 20, (2017); Directly Deposited Porous Two-Dimensional MoS2 Films as Electrocatalysts for Hydrogen Evolution Reactions, M Patel, J Zhang, J Park, N Choudhary, J Tour, W Choi, Materials Letters 225 65-68 (2018); Composition-tunable synthesis of large-scale Mo1-xWxS2 alloys with enhanced photoluminescence, J Park, M Kim, B Park, J Kim, W Choi, ACS Nano 12, 6, 6301-6309 (2018) 2. 2D MoS2 as an efficient protective layer for lithium metal anodes in high performance Li-S batteries, Cha, E., Patel, M.D., Park, J., Hwang, J., Prasad, V., Cho, K., and Choi, W., Nature Nanotechnology, 13, pages337–344 (2018) |
| 저자 | Wonbong Choi |
| 소속 | Univ. of North Texas |
| 키워드 | 2D materials; rechargeable batteries; opto-electronics; synthesis; nanomaterials |
