94 citations · 488 across the 29 of their papers we have counts for
15 papers · 1 filter
Nanoscale resolved mapping of the dipole emission of hBN color centers with a scattering-type scanning near-field optical microscope
Iris Niehues, Daniel Wigger, Korbinian Kaltenecker +11
Color centers in hexagonal boron nitride (hBN) are promising candidates as quantum light sources for future technologies. In this work, we utilize a scattering-type near-field opti…
Raman scattering excitation in monolayers of semiconducting transition metal dichalcogenides
M. Zinkiewicz, M. Grzeszczyk, T. Kazimierczuk +10
Raman scattering excitation (RSE) is an experimental technique in which the spectrum is made up by sweeping the excitation energy when the detection energy is fixed. We study the l…
Electrostatically-induced strain of graphene on GaN nanorods
Jakub Kierdaszuk, Rafał Bożek, Tomasz Stefaniuk +11
Few-layer graphene deposited on semiconductor nanorods separated by undoped spacers has been studied in perspective for the fabrication of stable nanoresonators. We show that an ap…
Temperature induced giant shift of phonon energy in epitaxial boron nitride layers
Jakub Iwański, Piotr Tatarczak, Mateusz Tokarczyk +5
The recent progress in the growth of large-area boron nitride epilayers opens up new possibilities for future applications. However, it remains largely unclear how weakly attached…
Pseudomagnetic fields and strain engineering: graphene on GaN nanowires
Jakub Kierdaszuk, Paweł Dąbrowski, Maciej Rogala +11
Gallium nitride nanowire and nanorod substrates with different morphology are prospective platforms allowing to control the local strain distribution in graphene films top of them,…
Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures
J. Binder, J. Howarth, F. Withers +11
The intriguing physics of carrier-carrier interactions, which likewise affect the operation of light emitting devices, stimulate the research on semiconductor structures at high de…
Properties of graphene deposited on GaN nanowires: influence of nanowire roughness, self-induced nanogating and defects
Jakub Kierdaszuk, Piotr Kaźmierczak, Justyna Grzonka +8
We present detailed Raman studies of graphene deposited on gallium nitride nanowires with different variations in height. Our results show that different density and height of nano…
Surface-enhanced Raman scattering in graphene deposited on AlGaN/GaN axial heterostructure nanowires
Jakub Kierdaszuk, Mateusz Tokarczyk, Krzysztof M. Czajkowski +11
The surface-enhanced Raman scattering in graphene deposited on AlxGa1-xN/GaN axial heterostructure nanowires was investigated. The intensity of graphene Raman spectra was found not…
Surface-enhanced Raman scattering of graphene caused by self-induced nanogating by GaN nanowire array
Jakub Kierdaszuk, Piotr Kaźmierczak, Rafał Bożek +9
A constant height of gallium nitride (GaN) nanowires with graphene deposited on them is shown to have a strong enhancement of Raman scattering, whilst variable height nanowires fai…
Resonant quenching of Raman scattering due to out-of-plane A/A' modes in few-layer MoTe
K. Gołasa, M. Grzeszczyk, M. R. Molas +6
Temperature-dependent (5 K to 300 K) Raman scattering study of A/A' phonon modes in mono-layer (1L), bilayer (2L), trilayer (3L), and tetralayer (4L) MoTe is reporte…
Enhanced Raman scattering and weak localization in graphene deposited on GaN nanowires
Jakub Kierdaszuk, Piotr Kaźmierczak, Aneta Drabińska +8
The influence of GaN nanowires on the optical and electrical properties of graphene deposited on them was studied using Raman spectroscopy and microwave induced electron transport…
In-situ Raman Spectroscopy of the Graphene / Water Interface of a Solution-Gated Field Effect Transistor: Electron-Phonon Coupling and Spectroelectrochemistry
J. Binder, J. M. Urban, R. Stepniewski +2
We present a novel measurement approach which combines the electrical characterization of solution-gated field effect transistors based on epitaxial bilayer graphene on 4H-SiC (000…
A micro-magneto-Raman scattering study of graphene on a bulk graphite substrate
C. Faugeras, J. Binder, A. A. L. Nicolet +5
We report on a magneto-Raman scattering study of graphene flakes located on the surface of a bulk graphite substrate. By spatially mapping the Raman scattering response of the surf…
Carrier scattering from dynamical magneto-conductivity in quasi-neutral epitaxial graphene
M. Orlita, C. Faugeras, R. Grill +6
The energy-dependence of the electronic scattering time is probed by Landau level spectroscopy in quasi neutral multilayer epitaxial graphene. From the Landau levels broadening we…
Quasi-classical cyclotron resonance of Dirac fermions in highly doped graphene
A. M. Witowski, M. Orlita, R. Stepniewski +6
Cyclotron resonance in highly doped graphene has been explored using infrared magnetotransmission. Contrary to previous work, which only focused on the magneto-optical properties o…