Paper 12990-70
Paper 12990-70
Scalable monolayer MoS2 plasmonic phototransistors (Invited Paper)
7 April 2024 • 13:55 - 14:25 CEST | Etoile C, Niveau/Level 1
Abstract
Monolayer transition metal dichalcogenides (TMDs) are promising materials for electronics and photonics at highly scaled lateral dimensions. However, their low photon absorption poses a challenge for high-performance optoelectronic devices. We present plasmonic phototransistors (photoFETs) that integrate monolayer molybdenum disulfide (MoS2) with plasmonic metasurfaces, such as Ag, Bi, HfN, and TiN. These plasmonic photoFETs exhibit a significant enhancement in photocurrent compared to pristine 2D photoFETs, enabling high-performance devices with ultrahigh photoresponsivity. The enhancement is achieved through plasmonic nanostructures that enhance light absorption, photo-carrier generation, photo-gating, and hot-carrier transfer rates.
Presenter
Research Ctr. for Applied Sciences - Academia Sinica (Taiwan)
Dr. Yu-Jung Lu is an Associate Research Fellow in the Research Center for Applied Sciences at Academia Sinica and an Associate Professor in the Department of Physics at National Taiwan University. Dr. Lu received her Ph.D. in Physics from the National Tsing Hua University, Taiwan, in 2013. She later held a Postdoctoral position in Prof. Harry Atwater’s research group at the California Institute of Technology (Caltech), USA, from 2015 to 2017. Dr. Lu is a renowned materials physicist who specializes in active plasmonics, nanophotonics, and metamaterials. Her research focuses on plasmonic nanodevices that enable the harvesting, generation, and manipulation of light at the nanoscale.