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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Proceedings ArticleDOI
Wavelength tunable graphene modelocked VECSEL
C. A. Zaugg,Zhipei Sun,Daniel Popa,Silvia Milana,Tero S. Kulmala,R. S. Sundaram,Valentin J. Wittwer,Markus Mangold,O. D. Sieber,M. Golling,Youngseok Lee,Jong Hyun Ahn,Andrea C. Ferrari,Ursula Keller +13 more
TL;DR: In this article, the authors passively modelock an optically pumped VECSEL by using a single-layer graphene saturable absorber mirror, resulting in pulses as short as 473 fs.
Journal ArticleDOI
Defect Tolerance and Nanomechanics in Transistors that Use Semiconductor Nanomaterials and Ultrathin Dielectrics
TL;DR: In this paper, experimental and theoretical studies of the mechanics of free-standing nanoribbons and membranes of single-crystalline silicon transfer printed onto patterned dielectric layers are described.
Journal ArticleDOI
Instability in an amorphous In-Ga-Zn-O field effect transistor upon water exposure
TL;DR: In this paper, the instability of an amorphous indium-gallium-zinc oxide (IGZO) field effect transistor is investigated upon water treatment, and it is observed that after a few days of water exposure, an IGZO field effects transistor (FET) shows relatively more stable behavior as compared to before exposure.
Journal ArticleDOI
Residue-free photolithographic patterning of graphene
Ahreum Choi,Travis Bauer,Anh Tuan Hoang,Tran Thi Ngoc Van,Bonggeun Shong,Luhing Hu,Kean You Thai,Jong Hyun Ahn +7 more
TL;DR: In this paper, a buffer layer between the organic photoresist (PR) and the graphene was introduced to eliminate poly(methyl methacrylate) residues on the graphene surface during the wet transfer process.
Journal ArticleDOI
Tactile Sensors: MoS2‐Based Tactile Sensor for Electronic Skin Applications (Adv. Mater. 13/2016)
TL;DR: A tactile sensor based on a MoS2 strain gauge and a graphene electrode is integrated on a finger tip by M. Kim, J. Ahn, and co-workers, expected to provide great opportunities for electronic-skin and wearable-electronics applications.