Supramolecular networks stabilise and functionalise black phosphorus
Description
The limited stability of the surface of black phosphorus (BP) under atmospheric conditions is a significant constraint on the exploitation of this layered material and its few layer analogue, phosphorene, as an optoelectronic material. Here Wwe show that the surface of black phosphorus (BP) supports the formation of supramolecular networks stabilised by hydrogen bonding can be formed on BP, and that these monolayer-thick films can passivate the BP surface and inhibit oxidation under ambient conditions. The supramolecular layers are formed by solution deposition and we use atomic force microscopy to obtain images of the BP surface and hexagonal supramolecular networks of trimesic acid and melamine cyanurate (CA.M) in the ambient. The CA.M network is aligned with rows of phosphorus atoms and forms large domains which passivate the BP surface for more than a month, and also provides a stable supramolecular platform for the sequential deposition of 1,2,4,5-tetrakis(4-carboxyphenyl)benzene (TCPB) to form supramolecular heterostructures.
External URI
Subjects
- afm, atomic force microscopy, self-assembly, networks, supramolecular heterostructures, epitaxy, black phosphorus, xps, raman
- Physical sciences::Materials science
- Q Science::QD Chemistry::QD450 Physical and theoretical chemistry
Divisions
- University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy
- University of Nottingham, UK Campus::Faculty of Science::School of Chemistry
Deposit date
2017-12-19Data type
raw atomic force microscopy images, optical images, raw XPS and Raman dataContributors
- Timokhin, Ivan
- Haubrichs, Rolf
- Smith, Emily
- Yang, Lixu
- Yang, Sihai
- Champness, Neil
- Schroder, Martin
- Beton, Peter
Funders
- Engineering & Physical Sciences Research Council
- Other
- Leverhulme Trust
Grant number
- Leverhulme Trust (Grant RPG-2016-104)
- EPSRC (Grants EP/N033906/1, EP/I011870/2, EP/K005138/1, EP/K01773X/1)
- ERC Advanced Grant (AdG 226593)
Collection dates
- June 2016-June 2017
Coverage
- UK, Nottinghamshire, Nottingham
- 52.9413891, -1.1912686
Data collection method
Atomic Force Microscope, Horiba LABRAM confocal microscope/spectrometer, Kratos AXIS ULTRA, Leica optical microscopeResource languages
- en