Browsing Public Research Data by Author "Beton, Peter"
Now showing items 1-11 of 11
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Epitaxial growth of γ-InSe and α, β, and γ-In2Se3 on ε-GaSe
Balakrishnan, Nilanthy; Patane, Amalia; Beton, Peter (The University of Nottingham, 2018-05)We demonstrate that γ-InSe and the α, β and γ phases of In2Se3 can be grown epitaxially on ε-GaSe substrates using a physical vapour transport method. By exploiting the temperature gradient within the tube furnace, we can ... -
Fluorescence and electroluminescence of J-aggregated polythiophene monolayers on hexagonal boron nitride
Beton, Peter; Kerfoot, James (The University of Nottingham, 2020-09-15)The photophysics of a semiconducting polymer is manipulated through molecular self-assembly on an insulating surface. Adsorption of polythiophene (PT) monolayers on hexagonal boron nitride (hBN) leads to a structurally-induced ... -
Giant moiré patterns and lattice-matched epitaxial graphene grown
Summerfield, Alex; Davies, Andrew; Beton, Peter; Diez Albar, Juan; Thomas, James; Cheng, Tin s. (The University of Nottingham, 2018-01-01)Lattice-matched graphene on hexagonal boron nitride is expected to lead to the formation of a band-gap but requires the formation of highly strained material and has not hitherto been realised. We demonstrate that aligned, ... -
The nucleation and early stages of layer-by-layer growth of metal organic frameworks on surfaces
Beton, Peter (University of Nottingham, 2015-09-14)High resolution atomic force microscopy (AFM) is used to resolve the evolution of crystallites of a metal organic framework (HKUST-1) grown on Au(111) using a liquid-phase layer-by-layer methodology. The nucleation and ... -
Quantum confinement and photoresponsivity of β-In2Se3 nanosheets grown by physical vapour transport
Balakrishnan, Nilanthy; Beton, Peter; Patane, Amalia (University of Nottingham, 2016-06-01)We demonstrate that β-In2Se3 layers with thickness ranging from 2.8 – 100 nm can be grown on SiO2/Si, mica and graphite using a physical vapour transport method. The β-In2Se3 layers are chemically stable at room temperature ... -
Resonant tunnelling into the two-dimensional subbands of InSe layers
Kudrynskyi, Zakhar; Patane, Amalia (The University of Nottingham, 2020-01-20)Two-dimensional (2D) van der Waals (vdW) crystals have attracted considerable interest for digital electronics beyond Si-based complementary metal oxide semiconductor technologies. Despite the transformative success of ... -
Step-flow growth of graphene-boron nitride lateral heterostructures by molecular beam epitaxy
Beton, Peter (The University of Nottingham, 2020-04-20)Integration of graphene and hexagonal boron nitride (hBN) into lateral heterostructures has drawn focus due to the ability to broadly engineer the material properties. Hybrid monolayers with tuneable bandgaps have been ... -
Strain-engineered graphene grown on hexagonal boron nitride by molecular beam epitaxy
Beton, Peter; Summerfield, Alex; Davies, Andrew (University of Nottingham, 2016-02-01)Graphene grown by high temperature molecular beam epitaxy on hexagonal boron nitride (hBN) forms continuous domains with dimensions of order 20 μm, and exhibits moiré patterns with large periodicities, up to ~30 nm, ... -
Supramolecular heterostructures formed by sequential epitaxial deposition of two-dimensional hydrogen-bonded arrays
Korolkov, Vladimir; Baldoni, Matteo; Taniguchi, Takashi; Watanabe, Kenji; Besley, Elena; Beton, Peter (The University of Nottingham, 2017-05-16)Supramolecular heterostructures are formed by growing sequential layers of bi- and mono-component two-dimensional molecular arrays stabilized by hydrogen bonding. The heterostructures are formed on hexagonal boron nitride ... -
Triplet excitation and electroluminescence from a supramolecular monolayer embedded in a boron nitride tunnel barrier
Beton, Peter (The University of Nottingham, 2019-12-10)We show that ordered monolayers of organic molecules stabilized by hydrogen bonding on the surface of exfoliated few-layer hexagonal boron nitride (hBN) flakes may be incorporated into van der Waals heterostructures with ... -
Van der Waals-induced chromatic shifts in hydrogen-bonded two-dimensional porphyrin arrays on boron nitride
Beton, Peter (University of Nottingham, 2015-10-01)The fluorescence of a two-dimensional supramolecular network of 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin (TCPP) adsorbed on hexagonal boron nitride (hBN) is redshifted due to, primarily, adsorbate-substrate van der ...