Welcome to Sangyeon Pak Research Group @Hongik
Advanced Nano Semiconductor Devices Laboratory
WHO WE ARE
This Research Group is highly interdisciplinary encompassing Electrical Engineering, Physics, Materials Science. Our research focuses on novel functional nanostructures (e.g. 2D materials) for future nano-semiconductor devices and other energy-related applications.
We are recruiting highly motivated Undergraduate, Master, & PhD Students interested in Next-Generation Semiconductor Materials & Devices
우리 연구실은 다양한 나노 소재를 (2차원 물질 등) 기반으로 하는 차세대 반도체 소자 (트랜지스터, 메모리, 광전소자, 센서 등) 응용 연구를 하고 있습니다. 우리 연구실은 차세대 나노 반도체 소재/공정/소자 연구에 뜻이 있으며, 에너지와 열정으로 가득찬 학부생/대학원생을 모집하고 있습니다.
NEWS/NOTICE
2024.04 Corresponding-authored paper published in Advanced Science, Journal of Energy Storage, ACS Applied Energy Materials
2024.03 Oyejin Kang Joined our group as a Master Student!
2024.02 Congratulations on your graduation, Sungsan, Jinhyeok, Sohyeon, and Sunyou, and welcome to graduate school!
2024.02 Corresponding-authored paper published in ACS Applied Electronic Materials
2023.12 Corresponding-authored paper published in Applied Surface Science, ChemElectroChem
2023.11 Co-authored paper published in Light: Science & Application
2023.10 Invited talk at 2023 KPS Fall Meeting
2023.07 Invited talk at IEEE Nano 2023
2023.06 Our group is now funded by the National Research Foundation of Korea (NRF) (기본연구)
2023.03 Co-authored paper published in Nano Letters.
2023.02 First-authored paper published in Journal of Physical Chemistry C.
2023.01 Invited talk at AFM 2023 and 2023 KPS WW.
2023.01 Corresponding-authored paper published in Small Structures , Energy & Environmental Materials
2022.11 Became an Editorial Board of Current Applied Physics (Elsevier)
2022.11 Corresponding-authored paper published in Journal of Materials Chemistry A
2022.10 First-authored paper published in Nanotechnology
2022.08 Corresponding-authored paper published in Nanomaterials
2022.07 Our group is now funded by Korea Institute for Advancement of Technology (KIAT) (반도체전공트랙사업)
2022.07 Oral Presentation at ISPSA 2022, Invited talk at Graphene Symposium 2022 and AWAD 2022
2022.06. Our group is now funded by the National Research Foundation of Korea (NRF) (기본연구)
2022.04 Invited talk at 2022 KPS Spring Meeting and Sungkyunkwan University
2022.03 First-authored paper published in ACS Applied Materials & Interfaces
2022.03- Guest Editor of journal 'Nanomaterials' with special issue: 2D Nanostructures for Optoelectronic and Green Energy Devices"
2022.03- Appointed Assistant Professor at Hongik University
2021.11 Interview with SKKUZINE, 성균웹진 (연구에 대한 지치지 않는 열정, 물리학과 박상연 박사")
2021.09 POSCO Science Fellowship, 한국경제 ("포스코청암재단 신진과학자 '포스코 펠로' 33명 선발")
+SELECTED PUBLICATIONS
(1) Resonantly hybridized excitons in moire superlattices in van der Waals heterostructures”,
Nature 2019, 567, 81-86 (IF:42.7, JCR < 1%)
2D Exciton Hybridization 세계 최초 발견
(2) “Monolayer optical memory cells based on artificial trap-mediated charge storage and release”,
Nature Communications, 2017, 8 ,14734 (IF:12.1 , JCR < 7.2% )
2D 나노 물질의 광메모리 기능성을 최초로 구현
Highlighted in News: 연합뉴스 ("투명하고 구부러지는 초박막 이미지 센서 기술 개발")
(3) “Electrode-Induced Self-Healed Monolayer MoS2 for High Performance Transistors and Phototransistors”,
Advanced Materials, 2021, 31, 2102091 (IF:30.849, JCR <2.2%)
2D 나노 물질기반 자기치유 전자소자 최초로 구현
Highlighted in News: 헤럴드경제("韓 연구진, 자가치유 ‘2차원 반도체소자’ 개발"), 한국경제("손상 스스로 치유하는 2차원 반도체"), 동아사이언스("손상 기능 치유해 성능 높이는 2차원 반도체 소자 나왔다"), 아시아경제, 서울신문, 뉴스1, 아이뉴스24, 이데일리, 파이낸셜뉴스, 위키트리, 금강일보, 기계신문, 정보통신신문, 워크투데이. 디지털타임즈, 충청뉴스
(4) “Thermodynamically Stable Synthesis of Large-Scale and Highly-Crystalline Transition Metal Dichalcogenide Monolayers and Their Unipolar n-n Heterojunction Device”,
Advanced Materials, 2017, 29, 1702206 (IF:19.8 , JCR < 1.3% )
촉매 전구체 제어를 통한 고품질 대면적의 2D 나노 물질 합성법 최초 구현
(5) “Strain-Mediated Interlayer Coupling Effects on the Excitonic Behaviors in an Epitaxially Grown MoS2/WS2 van der Waals Heterobilayer”,
Nano Letters, 2017, 17, 5634 (IF:12.7 , JCR < 6.0% )
Hetero 2D 나노 구조의 엑시톤 거동 관측을 통한, 2D 물질 electronic structure에 대한 기반 연구
(6) "Direct Epitaxial Synthesis of Selective Two-dimensional Lateral Heterostructures",
ACS Nano, 2019, 13, 13047-13055. (IF:13.1, JCR < 6%)
획기적인 촉매 전구체 제어를 통한 Hetero 2D 대면적 합성법 개발
(7) "Strain-engineering of contact energy barriers and photoresponse behaviors in monolayer MoS2 flexible devices"
Advanced Functional Materials, 2020, 30, 2002023 (IF:15.6, JCR <3.3%)
유연소자 2차원 채널 물질과 전극에서 생기는 contact potential energy 변화 관측
(8) "Hybrid Smart Fiber with Spontaneous Self-Charging Mechanism for Sustainable Wearable Electronics"
Advanced Functional Materials, 2020, 30, 1908479 (IF:15.6, JCR <3.3%)
옷(섬유) 에서 전기생성 충전기술을 통한 웨어러블 에너지 저장장치 개발
Highlighted in News: 부산일보("옷(섬유)에서 전기생성, 충전 기술 개발") 경남매일("옷에서 충전하는 에너지 자립화 기술 개발" ), 뉴시스("충전기 없이 옷에서 충전" 웨어러블 에너지 저장장치 개발"), 외 9곳
(9) "Enhanced Direct White Light Emission Efficiency in Quantum Dot Light-Emitting Diodes via Embedded Ferroelectric Islands Structure"
Advanced Functional Materials, 2021, 31, 41, 2104239. (IF:18.808, JCR <4.3%)
퀀텀닷 화이트 LED 광전효율을 획기적으로 높이는 기술 개발