A5082760478- Graphene research and applications
- Molecular Junctions and Nanostructures
- Carbon Nanotubes in Composites
- Advancements in Semiconductor Devices and Circuit Design
- Fullerene Chemistry and Applications
- Machine Learning in Materials Science
- Surface and Thin Film Phenomena
- Quantum and electron transport phenomena
- Semiconductor materials and devices
- Organic Electronics and Photovoltaics
- 2D Materials and Applications
- Thermal properties of materials
University of Basel
2022-2023
Swiss Federal Laboratories for Materials Science and Technology
2022-2023
The energetics of graphene/pentacene nanostructures is determined by conductive-AFM measurements combined with analytical models and related to the organization pentacene molecules at interface as deduced from micro-Raman spectroscopy.
Among the family of 2D materials, graphene is ideal candidate as top or interlayer electrode for hybrid van der Waals heterostructures made organic thin films and materials due to its high conductivity mobility inherent ability forming neat interfaces without diffusing in adjacent layer. Understanding charge injection mechanism at graphene/organic semiconductor therefore crucial develop electronic devices. In particular, Gr/C60 are promising building blocks future n-type vertical transistors...
Hybrid van der Waals heterostructures based on 2D materials and/or organic thin films are being evaluated as potential functional devices for a variety of applications. In this context, the graphene/organic semiconductor (Gr/OSC) heterostructure could represent core element to build future vertical transistors two back-to-back Gr/OSC diodes sharing common graphene sheet, which functions base electrode. However, assessment still requires deeper understanding charge carrier transport across...
This work reports on a method to open nanoscale gaps in h-shaped graphene nano-constrictions by electrical breakdown at room temperature and pressure below 10−5 mbar. The was validated 275 devices, fabricated eight different chips, using Chemical Vapor Deposition (CVD)-grown from in-house production two commercial sources. gap width estimated fitting the I–V traces after with Simmons model for intermediate-voltage range. statistics collected data demonstrates that results normally...
Graphene is an excellent 2D material for vertical organic transistors electrodes due to its weak electrostatic screening and field-tunable work function, in addition high conductivity, flexibility optical transparency. Nevertheless, the interaction between graphene other carbon-based materials, including small molecules, can affect electrical properties therefore, device performances. This investigates effects of thermally evaporated C60 (n-type) Pentacene (p-type) thin films on in-plane...
We report a study on the relationship between structure and electron transport properties of nanoscale graphene/pentacene interfaces. fabricated interfaces from 10-30 nm thick needle-like pentacene nanostructures down to two-three layers (2L-3L) dendritic islands, we measured their by conductive atomic force microscopy (C-AFM). The energy barrier at interfaces, i.e. position highest occupied molecular orbital (HOMO) with respect Fermi graphene C-AFM metal tip, are determined discussed...
The rapid expansion of the Internet Things (IoT) has fueled exploration novel materials and device architectures to meet demands applications such as smart wearables, environmental sensors, flexible displays. In this context, graphene emerged a remarkable candidate due its exceptional electronic mechanical properties that are suitable for development devices. This work investigates potential C60- Pentacene-doped Graphene Field Effect Transistors (GFETs) building blocks complementary...