1.1k citations · 3.2k across the 30 of their papers we have counts for
30 papers
Combined electronic excitation and knock-on damage in monolayer MoS2
Carsten Speckmann, Julia Lang, Jacob Madsen +7
Electron irradiation-induced damage is often the limiting factor in imaging materials prone to ionization or electronic excitations due to inelastic electron scattering. Quantifyin…
Atomic-scale Oxygen-mediated Etching of 2D MoS and MoTe
E. Harriet Åhlgren, Alexander Markevich, Sophie Scharinger +6
Some of the materials are more affected by oxidation than others. To elucidate the oxidation-induced degradation mechanisms in transition metal chalcogenides, the chemical effects…
Absorbance Enhancement of Monolayer MoS in a Perfect Absorbing System
Xia Zhang, Julia Lawless, Jing Li +4
We reveal numerically and experimentally that dielectric resonance can enhance the absorbance and emission of monolayer MoS. By quantifying the absorbance of the Si disk resona…
Coexistence of negative and positive photoconductivity in few-layer PtSe2 field-effect transistors
Alessandro Grillo, Enver Faella, Aniello Pelella +6
Platinum diselenide (PtSe_2) field-effect transistors with ultrathin channel regions exhibit p-type electrical conductivity that is sensitive to temperature and environmental press…
Synthesis and thermal stability of TMD thin films: A comprehensive XPS and Raman study
Conor P. Cullen, Oliver Hartwig, Cormac Ó Coileáin +5
Transition metal dichalcogenides (TMDs) have been a core constituent of 2D material research throughout the last decade. Over this time, research focus has progressively shifted fr…
Synthesis and characterisation of thin-film platinum disulfide and platinum sulfide
Conor P. Cullen, Cormac Ó Coileáin, John B. McManus +4
Group-10 transition metal dichalcogenides (TMDs) are rising in prominence within the highly innovative field of 2D materials. While PtS2 has been investigated for potential electro…
Isotropic conduction and negative photoconduction in ultrathin PtSe films
Francesca Urban, Farzan Gity, Paul K. Hurley +2
PtSe ultrathin films are used as the channel of back-gated field-effect transistors (FETs) that are investigated at different temperatures and under super-continuous white lase…
Spectroscopic thickness and quality metrics for PtSe layers produced by top-down and bottom-up techniques
Beata M. Szydłowska, Oliver Hartwig, Bartlomiej Tywoniuk +6
Thin films of noble-metal-based transition metal dichalcogenides, such as PtSe, have attracted increasing attention due to their interesting layer-number dependent properties a…
Synthesis of WTe2 thin films and highly-crystalline nanobelts from pre-deposited reactants
John B. Mc Manus, Cansu Ilhan, Bastien Balsamo +10
Tungsten ditelluride is a layered transition metal dichalcogenide (TMD) that has attracted increasing research interest in recent years. WTe2 has demonstrated large non-saturating…
Low-temperature synthesis and electrocatalytic application of large-area PtTe2 thin films
John B. Mc Manus, Dominik V. Horvath, Michelle P. Browne +10
The synthesis of transition metal dichalcogenides (TMDs) has been a primary focus for 2D nanomaterial research over the last 10 years, however, only a small fraction of this resear…
Few-Layer MoS/a-Si:H Heterojunction pin-Photodiodes for extended Infrared Detection
Andreas Bablich, Daniel S. Schneider, Paul Kienitz +11
Few-layer molybdenum disulfide (FL-MoS) films have been integrated into amorphous silicon (a-Si:H) pin photodetectors. To achieve this, vertical a-Si:H photodiodes were grown b…
Perforating freestanding molybdenum disulfide monolayers with highly charged ions
Roland Kozubek, Mukesh Tripathi, Mahdi Ghorbani-Asl +12
Porous single layer molybdenum disulfide (MoS) is a promising material for applications such as DNA sequencing and water desalination. In this work, we introduce irradiation wi…
Defect-Moderated Oxidative Etching of MoS2
Pierce Maguire, Jakub Jadwiszczak, Maria O'Brien +4
We report a simple technique for the selective etching of bilayer and monolayer MoS. In this work, chosen regions of MoS were activated for oxygen adsorption and reaction b…
PtSe2 grown directly on polymer foil for use as a robust piezoresistive sensor
Conor S. Boland, Cormac Ó Coileáin, Stefan Wagner +5
Robust strain gauges are fabricated by growing PtSe2 layers directly on top of flexible polyimide foils. These PtSe2 layers are grown by low-temperature, thermally-assisted convers…
Suppression of the Shear Raman Mode in Defective Bilayer MoS2
Pierce Maguire, Clive Downing, Jakub Jadwiszczak +7
We investigate the effects of lattice disorders on the low frequency Raman spectra of bilayer MoS2. The bilayer MoS2 was subjected to defect engineering by irradiation with a 30 ke…
Neuromorphic MoS2 memtransistors fabricated by localised helium ion beam irradiation
Jakub Jadwiszczak, Darragh Keane, Pierce Maguire +12
Two-dimensional layered semiconductors have recently emerged as attractive building blocks for next-generation low-power non-volatile memories. However, challenges remain in the co…
Environmental effects on the electrical characteristics of back-gated WSe2 field effect transistors
Francesca Urban, Lisanne Peters, Nadia Martucciello +2
We study the effect of polymer coating, pressure and temperature on the electrical characteristics of monolayer WSe2 back-gated transistors with quasi-ohmic Ni/Au contacts. We find…
A WSe2 vertical field emission transistor
Antonio Di Bartolomeo, Francesca Urban, Maurizio Passacantando +6
We report the first observation of gate-controlled field emission current from a tungsten diselenide (WSe2) monolayer, synthesized by chemical-vapour deposition on SiO2/Si substrat…
Optimized single-layer MoS2 field-effect transistors by non-covalent functionalisation
HyunJeong Kim WungYeon Kim, Maria O'Brien, Niall McEvoy +6
Field-effect transistors (FETs) with non-covalently functionalised molybdenum disulfide (MoS2) channels grown by chemical vapour deposition (CVD) on SiO2 are reported. The dangling…
Highly sensitive electromechanical piezoresistive pressure sensors based on large-area layered PtSe films
Stefan Wagner, Chanyoung Yim, Niall McEvoy +8
Two-dimensional (2D) layered materials are ideal for micro- and nanoelectromechanical systems (MEMS/NEMS) due to their ultimate thinness. Platinum diselenide (PtSe), an excit…
Electrical characterization of structured platinum diselenide devices
Chanyoung Yim, Vikram Passi, Max C. Lemme +4
Platinum diselenide (PtSe2) is an exciting new member of the two-dimensional (2D) transition metal dichalcogenide (TMD) family. it has a semimetal to semiconductor transition when…
Defect Sizing, Separation and Substrate Effects in Ion-Irradiated Monolayer 2D Materials
Pierce Maguire, Daniel S. Fox, Yangbo Zhou +8
Precise and scalable defect engineering of 2D nanomaterials is acutely sought-after in contemporary materials science. Here we present defect engineering in monolayer graphene and…
Grain boundary-mediated nanopores in molybdenum disulfide grown by chemical vapor deposition
Kenan Elibol, Toma Susi, Maria O'Brien +6
Molybdenum disulfide (MoS2) is a particularly interesting member of the family of two-dimensional (2D) materials due to its semiconducting and tunable electronic properties. Curren…
High-performance hybrid electronic devices from layered PtSe2 films grown at low temperature
Chanyoung Yim, Kangho Lee, Niall McEvoy +8
Layered two-dimensional (2D) materials display great potential for a range of applications, particularly in electronics. We report the large-scale synthesis of thin films of platin…