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Molybdenum Disulfide: Photodriven Transient Picosecond Top‐Layer Semiconductor to Metal Phase‐Transition in p‐Doped Molybdenum Disulfide (Adv. Mater. 14/2021)
Author(s) -
Sorgenfrei Nomi L. A. N.,
Giangrisostomi Erika,
Jay Raphael M.,
Kühn Danilo,
Neppl Stefan,
Ovsyannikov Ruslan,
Sezen Hikmet,
Svensson Svante,
Föhlisch Alexander
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.202170108
Subject(s) - molybdenum disulfide , materials science , molybdenum trioxide , molybdenum , doping , picosecond , semiconductor , transition metal , layer (electronics) , nanotechnology , optoelectronics , optics , metallurgy , chemistry , organic chemistry , laser , physics , catalysis
In article number 2006957, Nomi L. A. N. Sorgenfrei and co‐workers demonstrate that a weak optical excitation creates electrons in the conduction band of p‐doped semiconducting molybdenum disulfide, which travel toward the surface layer. They accumulate in the top layer and concomitantly drive it from the semiconducting toward the metallic phase. The selectivity of synchrotron time‐resolved electron spectroscopy traces this effect. This surface modification influences the properties and functionality of MoS 2 . Frontispiece Art: Martin Künsting.