The isolation of graphene in 2004 opened the way to the new fascinating world of 2D materials: from bidimensionality peculiar physical and chemical properties can arise, which make 2D materials extremely attractive for many dierent application elds, including electronics, photonics, spintronics, mechanics and medicine. In this scenario black phosphorus (bP), the most stable allotrope of elemental phosphorus, attracted in the last few years a great interest, since it is characterized by a layered crystal structure that can be exfoliated (Fig.1). Due to their promising properties for dierent applications, the few-layer and the single layer (phosphorene) forms of bP are at present the object of many studies [1-3]. In spite of this, so far the use of NMR for investigating bP and its exfoliated forms has been very limited, while it can add a great value to the structural knowledge and control of these materials. In this work we present the rst characterization of the 31P spin interactions responsible for the NMR properties of solid bP and of its exfoliated forms. In particular, by combining Solid State NMR spectroscopy and DFT calculations it has been possible to characterize in detail the 31P homonuclear dipolar and chemical shift interactions. Highlights from 31P NMR applications to innovative materials based on exfoliated bP will also be presented [4-6]. European Research Council (ERC) is acknowledged for funding the project PHOSFUN (ERC Advanced Grant to M.P.) References [1] X. Ling, H. Wang, S. Huang, F. Xia, M. S. Dresselhaus, PNAS 112, 4523-4530, (2015). [2] Y. Zhao, Y. Chen, Y. H. Zhang, S. F. Liu Mater. Chem. Phys. 189, 215-229, (2017). [3] M. Peruzzini, R. Bini, M. Bolognesi et al. Eur. J. Inorg. Chem. 1476-1494, (2019). [4] E. Passaglia, F. Cicogna, F. Costantino et al. Chem. Mater. 30, 2036-2048, (2018). [5] M. Bolognesi, S. Moschetto, M. Trapani, et al. ACS Appl. Mater. Interfaces 11, 22637-22647, (2019). [6] F. Martini, S. Borsacchi, G. Barcaro et al. J. Phys. Chem. Lett., submitted.
PHOSPHORENE AND BLACK PHOSPHORUS: THE 31P NMR VIEW
S Borsacchi;F Martini;G Barcaro;M Caporali;M Vanni;M Peruzzini;M Geppi;L Calucci
2019
Abstract
The isolation of graphene in 2004 opened the way to the new fascinating world of 2D materials: from bidimensionality peculiar physical and chemical properties can arise, which make 2D materials extremely attractive for many dierent application elds, including electronics, photonics, spintronics, mechanics and medicine. In this scenario black phosphorus (bP), the most stable allotrope of elemental phosphorus, attracted in the last few years a great interest, since it is characterized by a layered crystal structure that can be exfoliated (Fig.1). Due to their promising properties for dierent applications, the few-layer and the single layer (phosphorene) forms of bP are at present the object of many studies [1-3]. In spite of this, so far the use of NMR for investigating bP and its exfoliated forms has been very limited, while it can add a great value to the structural knowledge and control of these materials. In this work we present the rst characterization of the 31P spin interactions responsible for the NMR properties of solid bP and of its exfoliated forms. In particular, by combining Solid State NMR spectroscopy and DFT calculations it has been possible to characterize in detail the 31P homonuclear dipolar and chemical shift interactions. Highlights from 31P NMR applications to innovative materials based on exfoliated bP will also be presented [4-6]. European Research Council (ERC) is acknowledged for funding the project PHOSFUN (ERC Advanced Grant to M.P.) References [1] X. Ling, H. Wang, S. Huang, F. Xia, M. S. Dresselhaus, PNAS 112, 4523-4530, (2015). [2] Y. Zhao, Y. Chen, Y. H. Zhang, S. F. Liu Mater. Chem. Phys. 189, 215-229, (2017). [3] M. Peruzzini, R. Bini, M. Bolognesi et al. Eur. J. Inorg. Chem. 1476-1494, (2019). [4] E. Passaglia, F. Cicogna, F. Costantino et al. Chem. Mater. 30, 2036-2048, (2018). [5] M. Bolognesi, S. Moschetto, M. Trapani, et al. ACS Appl. Mater. Interfaces 11, 22637-22647, (2019). [6] F. Martini, S. Borsacchi, G. Barcaro et al. J. Phys. Chem. Lett., submitted.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
