Publications de Daria Krasnozhon

Vacuum ultraviolet excitation luminescence spectroscopy of few-layered MoS2

We report on vacuum ultraviolet (VUV) excited photoluminescence (PL) spectra emitted from a chemical vapor deposited MoS2 few-layered film. The excitation spectrum was recorded by monitoring intensities of PL spectra at similar to 1.9 eV. A strong wide exc ...

Institute of Physics2016

Two-Dimensional materials: from large-area growth to the performance in radio-frequency range

Daria Krasnozhon

This thesis presents a collection of experimental results about the large-area growth of single-layer graphene and MoS2 films. In addition, we present the results of electrical characterisation of two-dimensional (2D) materials in direct current (DC) and r ...

EPFL2016

Electrochemical Reaction in Single Layer MoS2: nanopores opened atom by atom

Andras Kis, Aleksandra Radenovic, Michael Graf, Duncan Thomas Lindsay Alexander, Daria Krasnozhon, Roman Bulushev, Jiandong Feng, Ke Liu, Dumitru Dumcenco, Martina Lihter

Ultrathin nanopore membranes based on 2D materials have demonstrated ultimate resolution toward DNA sequencing. Among them, molybdenum disulfide (MoS2) shows long-term stability as well as superior sensitivity enabling high throughput performance. The trad ...

American Chemical Society (ACS)2015

High-Frequency Scaled MoS2 Transistors

Yusuf Leblebici, Andras Kis, Clemens Benedict Nyffeler, Daria Krasnozhon, Subhojit Dutta

The interest in MoS 2 for radio-frequency (RF) application has recently increased1'2. However, little is known on the scaling behavior of transistors made from MoS 2 for RF applications, which is important for establishing performance limits for electronic ...

2015

MoS2 Transistors Operating at Gigahertz Frequencies

Yusuf Leblebici, Andras Kis, Clemens Benedict Nyffeler, Dominik Sebastian Lembke, Daria Krasnozhon

2015

Large-Area Epitaxial Monolayer MoS2

Andras Kis, Aleksandra Radenovic, Anna Fontcuberta i Morral, Philippe Gillet, Nicola Marzari, Simone Bertolazzi, Oriol López Sánchez, Daria Krasnozhon, Ming-Wei Chen, Dmitry Ovchinnikov, Marco Gibertini, Dumitru Dumcenco, Yen-Cheng Kung, Kolyo Marinov

Two-dimensional semiconductors such as MoS2 are an emerging material family with wide-ranging potential applications in electronics, optoelectronics, and energy harvesting. Large-area growth methods are needed to open the way to applications. Control over ...

Amer Chemical Soc2015

MoS2 Transistors Operating at Gigahertz Frequencies

Yusuf Leblebici, Andras Kis, Clemens Benedict Nyffeler, Dominik Sebastian Lembke, Daria Krasnozhon

The presence of a direct band gap1-4 and an ultrathin form factor5 has caused a considerable interest in two-dimensional (2D) semiconductors from the transition metal dichalcogenides (TMD) family with molybdenum disulfide (MoS2) being the most studied repr ...

American Chemical Society (ACS)2014

Detecting the translocation of DNA through a nanopore using graphene nanoribbons

Mohamed Malik Benameur, Andras Kis, Aleksandra Radenovic, Camille Alice Raillon, Floriano Traversi, Daria Krasnozhon, Sergey Khlybov, Ke Liu

Solid-state nanopores can act as single-molecule sensors and could potentially be used to rapidly sequence DNA molecules. However, nanopores are typically fabricated in insulating membranes that are as thick as 15 bases, which makes it difficult for the de ...

Nature Publishing Group2013

Nonvolatile Memory Cells Based on MoS2/graphene heterostructures

Andras Kis, Simone Bertolazzi, Daria Krasnozhon

Memory cells are an important building block of digital electronics. We combine here the unique electronic properties of semiconducting monolayer MoS2 with the high conductivity of graphene to build a 2D heterostructure capable of information storage. MoS2 ...

Amer Chemical Soc2013