Neeraj Mishra

Radiation induced point defects in graphite and their phonon spectra

Uri Argaman, Neeraj Mishra, Itay Biton, I. Gavish Segev et autres

Energetics and vibrational modes of point defects that can be generated in the radiation damage process were studied in graphite using density functional theory. Di-Frenkel pairs formed from di-vacancies and two interstitials (at spiro or bridge) in cis and trans configurations were …

Stability of highly hydrogenated monolayer graphene in ultra-high vacuum and in air

Alice Apponi, Orlando Castellano, Daniele Paoloni, Domenica Convertino et autres

k-Resolved Ultrafast Light-Induced Band Renormalization in Monolayer WS2 on Graphene

Niklas Hofmann, Alexander Steinhoff, R. Krause, Neeraj Mishra et autres

High Resolution Image Download MS PowerPoint Slide Understanding and controlling the electronic properties of two-dimensional materials are crucial for their potential applications in nano- and optoelectronics. Monolayer transition metal dichalcogenides have garnered significant interest due to their strong light–matter interaction and extreme …

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Switching Activity Factor-Based ECSM Characterization (SAFE): A Novel Technique for Aging-Aware Static Timing Analysis

Lomash Chandra Acharya, Arvind Sharma, Neeraj Mishra, Khoirom Johnson Singh et autres

We propose switching activity factor-based effective current source model (SAFE) for aging-aware static timing analysis (STA), a new technique for estimating the timing performance of digital circuits. SAFE is based on the development of device-level variation-aware analytical timing models of stacked and …

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Non-equilibrium carrier dynamics and band structure of graphene on 2D tin

Maria-Elisabeth Federl, Niklas Witt, Biao Yang, Leonard Weigl et autres

Intercalation of epitaxial graphene on SiC(0001) with Sn results in a well-ordered Sn $(1\times1)$ structure on the SiC surface with quasi-freestanding graphene on top. While the electronic properties of the individual layers have been studied in the past, emerging phenomena arising from …

Interaction of graphene and WS 2 with neutrophils and mesenchymal stem cells: implications for peripheral nerve regeneration

Domenica Convertino, Martina Nencioni, Lara Russo, Neeraj Mishra et autres

with scalable techniques such as thermal decomposition and chemical vapor deposition. The materials were able to trigger the activation of a neutrophil human model promoting Neutrophil Extracellular Traps (NETs) production, particularly under basal conditions, although neutrophils were not able to degrade graphene. …

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Towards control of Dielectric Properties in Single-Layer WS2via Defect Density Engineering

Hasret Ağırcan, Domenica Convertino, Antonio Rossi, Leonardo Martini et autres

Tungsten disulfide (WS2) possesses attractive optical and electronic properties, which make it a promising candidate for a wide range of applications. However, upon growth it exhibits an intrinsic variety of defects, affecting its electronic and optical characteristics. This study focuses on the …

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Transmission through graphene of electrons in the 30 – 900 eV range

Alice Apponi, Domenica Convertino, Neeraj Mishra, Camilla Coletti et autres

Here, we report on accurate transmission measurements of electrons below 1 keV through suspended monolayer graphene. Monolayer graphene was grown via chemical vapor deposition and transferred onto transmission electron microscopy (TEM) grids. A monochromatic electron gun has been employed to perform the …

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Link between interlayer hybridization and ultrafast charge transfer in WS2-graphene heterostructures

Niklas Hofmann, Leonard Weigl, Johannes Gradl, Neeraj Mishra et autres

Abstract Ultrafast charge separation after photoexcitation is a common phenomenon in various van-der-Waals (vdW) heterostructures with great relevance for future applications in light harvesting and detection. Theoretical understanding of this phenomenon converges towards a coherent mechanism through charge transfer states accompanied by …

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Industrial Graphene Coating of Low-Voltage Copper Wires for Power Distribution

Neeraj Mishra, Ylea Vlamidis, Leonardo Martini, Arianna Lanza et autres

Copper (Cu) is the electrical conductor of choice in many categories of electrical wiring, with household and building installation being the major market of this metal. This work demonstrates the coating of Cu wires-with diameters relevant for low-voltage (LV) applications-with graphene. The …

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Integration of CVD graphene in gaseous electron multipliers for high energy physics experiments

G. Orlandini, F. Brunbauer, Camilla Coletti, Domenica Convertino et autres

Abstract To enhance the performance of micro-patterned gaseous detectors (MPGDs) to meet the challenging requirements of future high energy physics (HEP) experiments, two-dimensional (2D) materials are attractive candidates to address the back flow of positive ions, which affects detector performance by distorting …

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Transmission Through Graphene of Electrons in the 30 - 900 Ev Range

Alice Apponi, Domenica Convertino, Neeraj Mishra, Camilla Coletti et autres

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