2D Materials with Boron: Growth, Characterization and Heterostructures
- Date
- Friday 25 October 2024
- Time
- Address
-
Gorlaeus Building
Einsteinweg 55
2333 CC Leiden - Room
- BM.1.23
Abstract
Metal single crystals represent versatile supports for the synthesis of two-dimensional materials in ultrahigh vacuum, using distinct molecular precursors in chemical vapor deposition approaches. Surface science techniques, including low-temperature scanning tunnelling microscopy and X-ray photoelectron spectroscopy, supported by complementary theoretical modelling, are ideal tools to get insights into the resulting interfacial structures and properties.
In this presentation, I will provide an overview on our research activities on 2D materials including boron, such as hexagonal boron nitride (h-BN) [1,2], borophene [3], and graphene with embedded boron atoms [4]. Specifically, the X6 polymorph of borophene on Ir(111) will be addressed and it is shown that the moiré superlattice of graphene on Ir(111) can induce a spatial segregation of substitutional boron atoms. Furthermore, we demonstrate the combination of borophene and h-BN to heterostructures and discuss the use of the 2D materials as templates for molecular adsorbates.
References
- W. Auwärter, Surf. Sci. Rep. 77, 1, (2019)
- J. Deyerling et al., ACS Nano 17, 5448 (2023)
- M.G. Cuxart et al., Sci. Adv. 7, abk1490 (2021)
- M.G. Cuxart et al., Small 201, 881 (2023)