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Smart molecular/MoS2 Heterostructures Featuring Light and Thermally-Induced Strain Driven by Spin Switching

preprint
submitted on 16.07.2020 and posted on 17.07.2020 by Ramón Torres-Cavanillas, Marc Morant-Giner, Garin Escorcia-Ariza, Julien Dugay, J. Canet-Ferrer, Sergio Tatay, Salvador Cardona-Serra, Dr. Mónica Giménez Marqués, Marta Galbiati, Alicia Forment-Aliaga, Eugenio Coronado
In this work we exploit the ability of spin-crossover molecules to switch between two spin states, upon the application of external stimuli, to prepare smart molecular/2D heterostructures. Through the chemical design of the hybrid interface, that involves a covalent grafting between the two components, we obtain a hybrid heterostructure formed by spin-crossover nanoparticles anchored on chemically functionalized monolayers of semiconducting MoS2. In the resulting hybrid, the strain generated by the molecular system over the MoS2 layer, as a consequence of a thermal or light-induced spin switching, results in a dramatic and reversible change of its electrical and optical properties. This novel class of smart molecular/2D heterostructures could open the way towards a novel generation of hybrid multifunctional materials and devices of direct application in highly topical fields like electronics, spintronics or molecular sensing.

Funding

ERC-Advanced Grant MOL-2D

FET-OPEN COSMICS 766726

COST-MOLSPIN CA15128

MAT2017-89993

Excellence Unit María de Maeztu MDM-2015-0538

RTI2018-098568-A-I

EQC2018-004888-P

Prometeo Program of Excellence

PO FEDER Program ref. IDIFEDER/2018/061

GentT Program, ref. CIDEGENT/2018/005

RYC-2016-19817

“la Caixa” Foundation (LCF/BQ/PI19/11690022)

Generalitat Valenciana (SEJI/2020/036)

History

Email Address of Submitting Author

alicia.forment@uv.es

Institution

Instituto de Ciencia Molecular (ICMol), University of Valencia

Country

Spain

ORCID For Submitting Author

0000-0003-0742-0457

Declaration of Conflict of Interest

There are no conflicts to declare

Exports