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Enhancing Light–Matter Interactions in MoS 2 by Copper Intercalation
Author(s) -
Stern Chen,
Twitto Avraham,
Snitkoff Rifael Z.,
Fleger Yafit,
Saha Sabyasachi,
Boddapati Loukya,
Jain Akash,
Wang Mengjing,
Koski Kristie J.,
Deepak Francis Leonard,
Ramasubramaniam Ashwin,
Naveh Doron
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202008779
Subject(s) - materials science , copper , intercalation (chemistry) , responsivity , optoelectronics , van der waals force , infrared , photodetector , surface plasmon resonance , band gap , plasmon , nanotechnology , optics , inorganic chemistry , molecule , chemistry , physics , nanoparticle , metallurgy , organic chemistry
The intercalation of layered compounds opens up a vast space of new host–guest hybrids, providing new routes for tuning the properties of materials. Here, it is shown that uniform and continuous layers of copper can be intercalated within the van der Waals gap of bulk MoS 2 resulting in a unique Cu–MoS 2 hybrid. The new Cu–MoS 2 hybrid, which remains semiconducting, possesses a unique plasmon resonance at an energy of ≈1eV, giving rise to enhanced optoelectronic activity. Compared with high‐performance MoS 2 photodetectors, copper‐enhanced devices are superior in their spectral response, which extends into the infrared, and also in their total responsivity, which exceeds 10 4 A W −1 . The Cu–MoS 2 hybrids hold promise for supplanting current night‐vision technology with compact, advanced multicolor night vision.