J
Jong Hyun Ahn
Researcher at Yonsei University
Publications - 320
Citations - 44695
Jong Hyun Ahn is an academic researcher from Yonsei University. The author has contributed to research in topics: Graphene & Graphene nanoribbons. The author has an hindex of 74, co-authored 287 publications receiving 39786 citations. Previous affiliations of Jong Hyun Ahn include National University of Singapore & University of Illinois at Urbana–Champaign.
Papers
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Journal ArticleDOI
Enhanced Raman Scattering of Rhodamine 6G Films on Two-Dimensional Transition Metal Dichalcogenides Correlated to Photoinduced Charge Transfer
Youngbin Lee,Hyunmin Kim,Jinhwan Lee,Seong Hun Yu,Euyheon Hwang,Changgu Lee,Jong Hyun Ahn,Jeong Ho Cho +7 more
TL;DR: In this paper, the surface-enhanced Raman scattering of an organic fluoropore (Rhodamine 6G, R6G) monolayer adsorbed onto graphene and two-dimensional (2D) molybedenium disulfides (MoS2) phototransistors was studied.
Journal ArticleDOI
Ultrafast and widely tuneable vertical-external-cavity surface-emitting laser, mode-locked by a graphene-integrated distributed Bragg reflector
C. A. Zaugg,Zhipei Sun,Valentin J. Wittwer,Daniel Popa,Silvia Milana,Tero S. Kulmala,R. S. Sundaram,Mario Mangold,O. D. Sieber,Matthias Golling,Youngseok Lee,Jong Hyun Ahn,Andrea C. Ferrari,Ursula Keller +13 more
TL;DR: In this article, the thickness of a spacer between a single layer graphene (SLG) and a high-reflection mirror is changed to reduce the unsaturated loss of the SLG-mirror assembly.
Journal ArticleDOI
Graphene induced tunability of the surface plasmon resonance
TL;DR: In this article, the authors demonstrated the tunability of the surface plasmon resonance wavelength by varying the thickness of Al2O3 spacer layer inserted between the graphene and nanoparticles.
Journal ArticleDOI
Tuning Optical Conductivity of Large‐Scale CVD Graphene by Strain Engineering
Guangxin Ni,Hong Zhi Yang,Wei Ji,Seung Jae Baeck,Chee Tat Toh,Jong Hyun Ahn,Vitor M. Pereira,Barbaros Özyilmaz +7 more
TL;DR: The strain sensitivity of the optical response of graphene demonstrated here can be effectively utilized towards novel ultra-thin optical devices and strain sensing applications.
Patent
Roll-to-roll transfer method of graphene, graphene roll produced by the method, and roll-to-roll transfer equipment for graphene
TL;DR: In this article, the authors present a disclosure related to a graphene roll-to-roll transfer method and uses of such a method, as well as a graphite roll manufactured by the GTL transfer method.