Open AccessNear-Infrared Plasmon-Induced Hot Electron Extraction Evidence in an Indium Tin Oxide Nanoparticle/Monolayer Molybdenum Disulfide Heterostructure
Author(s) -
Michele Guizzardi,
Michele Ghini,
A. Villa,
Luca Rebecchi,
Qiuyang Li,
Giorgio Mancini,
Fabio Marangi,
Aaron M. Ross,
Xiaoyang Zhu,
Ilka Kriegel,
Francesco Scotognella
Publication year - 2022
Publication title -
the journal of physical chemistry letters
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 2.563
H-Index - 203
ISSN - 1948-7185
DOI - 10.1021/acs.jpclett.2c02358
Subject(s) - molybdenum disulfide , indium tin oxide , monolayer , materials science , surface plasmon resonance , indium , plasmon , molybdenum , nanoparticle , heterojunction , tin , nanocrystal , photochemistry , inorganic chemistry , chemistry , optoelectronics , nanotechnology , thin film , metallurgy
In this work, we observe plasmon-induced hot electron extraction in a heterojunction between indium tin oxide nanocrystals and monolayer molybdenum disulfide. We study the sample with ultrafast differential transmission, exciting the sample at 1750 nm where the intense localized plasmon surface resonance of the indium tin oxide nanocrystals is and where the monolayer molybdenum disulfide does not absorb light. With the excitation at 1750 nm, we observe the excitonic features of molybdenum disulfide in the visible range, close to the exciton of molybdenum disulfide. Such a phenomenon can be ascribed to a charge transfer between indium tin oxide nanocrystals and monolayer molybdenum disulfide upon plasmon excitation. These results are a first step toward the implementation of near-infrared plasmonic materials for photoconversion.