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Dual Functionalization of Liquid‐Exfoliated Semiconducting 2 H‐ MoS 2 with Lanthanide Complexes Bearing Magnetic and Luminescence Properties
Author(s) -
McAdams Simon G.,
Lewis Edward A.,
Brent Jack R.,
Haigh Sarah J.,
Thomas Andrew G.,
O'Brien Paul,
Tuna Floriana,
Lewis David J.
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201703646
Subject(s) - surface modification , materials science , lanthanide , luminescence , nanotechnology , covalent bond , graphene , europium , optoelectronics , chemical engineering , organic chemistry , chemistry , ion , engineering
Liquid exfoliated, atomically thin semiconducting transition metal dichalcogenides (TMDs), as inorganic equivalents of graphene, have attracted great interest due to their distinctive physical, optoelectronic, and chemical properties. Functionalization of 2D TMDs brings new prospects for applications in optoelectronics, quantum technologies, catalysis, and medicine. In this report, dual functionalization of 2D semiconducting 2 H ‐MoS 2 nanosheets through simultaneous incorporation of magnetic and luminescent properties is demonstrated. A facile method is proposed for tuning the properties of the TDM semiconductors and accessing multimodal platforms, consisting in covalent grafting of lanthanide complexes onto the surface of 2D TMDs. Dual functionalization of liquid‐exfoliated MoS 2 nanosheets is demonstrated simultaneously with both europium (III) and gadolinium (III) complexes to form a colloidally stable luminescent (with millisecond lifetimes) and paramagnetic MoS 2 ‐based nanohybrid material. This work is the first example of transition metal dichalcogenide nanosheets functionalized with preformed lanthanide complexes. These findings open new prospects for covalent functionalization of TMDs with molecular species bearing specific functionalities as a means to tune the optoelectronic properties of the semiconductors, in order to create advanced materials and devices with a wide range of functionalities.