5 papers
Multiscale ensemble Monte Carlo of transport and gas sensing in monolayer MoS
Lado Filipovic
Two-dimensional semiconductors, such as monolayer MoS, combine a technologically useful band gap with an all-surface geometry, making them attractive both as field-effect-trans…
Hexatic Phase in Covalent Two-Dimensional Silver Iodide
Thuy An Bui, David Lamprecht, Jacob Madsen +10
According to the Kosterlitz-Thouless-Halperin-Nelson-Young (KTHNY) theory, the transition from a solid to liquid in two dimensions proceeds through an orientationally ordered liqui…
Single photon emitters in hBN: Limitations of atomic resolution imaging and potential sources of error
David Lamprecht, Shrirang Chokappa, Alissa M. Freilinger +9
There is a growing interest in identifying the origin of single-photon emission in hexagonal boron nitride (hBN), with proposed candidates including boron and nitrogen vacancies as…
Atomically clean free-standing two-dimensional materials through heating in ultra-high vacuum
Philipp Irschik, David Lamprecht, Shrirang Chokappa +6
Surface contamination not only influences but in some cases even dominates the measured properties of two-dimensional materials. Although different cleaning methods are often used…
Uncovering the atomic structure of substitutional platinum dopants in MoS with single-sideband ptychography
David Lamprecht, Anna Benzer, Manuel Längle +5
We substitute individual Pt atoms into monolayer MoS and study the resulting atomic structures with single-sideband (SSB) ptychography supported by ab initio simulations. We de…