Plasmon-exciton couplings in the MoS2/AuNP plasmonic hybrid structure
Hyun‐Tae Kim, Jae-Seung Im, Kiin Nam, Gang Han, Taiho Park, Sungjae Yoo, MohammadNavid Haddadnezhad, Sungho Park, Woongkyu Park, J. S. Ahn, Doojae Park, Mun Seok Jeong, Soobong Choi
Abstract
Abstract The understanding and engineering of the plasmon-exciton coupling are necessary to control the innovative optoelectronic device platform. In this study, we investigated the intertwined mechanism of each plasmon-exciton couplings in monolayer molybdenum disulfide (MoS 2 ) and plasmonic hybrid structure. The results of absorption, simulation, electrostatics, and emission spectra show that interaction between photoexcited carrier and exciton modes are successfully coupled by energy transfer and exciton recombination processes. Especially, neutral exciton, trion, and biexciton can be selectively enhanced by designing the plasmonic hybrid platform. All of these results imply that there is another degree of freedom to control the individual enhancement of each exciton mode in the development of nano optoelectronic devices.