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Andras Kis

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Publications associées (113)

Optospintronics in Graphene via Proximity Coupling

Andras Kis, Oriol López Sánchez, Dmitrii Unuchek, Ahmet Avsar

The observation of micrometer size spin relaxation makes graphene a promising material for applications in spintronics requiring long-distance spin communication. However, spin dependent scatterings at the contact/graphene interfaces affect the spin inject ...

American Chemical Society2017

Highly Oriented Atomically Thin Ambipolar MoSe2

Andras Kis, Oleg Yazyev, Alessandro Surrente, Philippe Gillet, Oriol López Sánchez, Ming-Wei Chen, Dmitry Ovchinnikov, Michele Pizzochero

Transition metal dichalcogenides (TMDCs), together with other two-dimensional (2D) materials, have attracted great interest due to the unique optical and electrical properties of atomically thin layers. In order to fulfill their potential, developing large ...

American Chemical Society2017

Resolving the spin splitting in the conduction band of monolayer MoS2

Andras Kis, Kolyo Marinov, Ahmet Avsar

Time-reversal symmetry and broken spin degeneracy enable the exploration of spin and valley quantum degrees of freedom in monolayer transition-metal dichalcogenides. While the strength of the large spin splitting in the valance band of these materials is n ...

Nature Publishing Group2017

Suppressing Nucleation in Metal–Organic Chemical Vapor Deposition of MoS2

Andras Kis, Davide Deiana, Dmitry Ovchinnikov, Dmitrii Unuchek, Hokwon Kim

Toward the large-area deposition of MoS2 layers, we employ metal–organic precursors of Mo and S for a facile and reproducible van der Waals epitaxy on c-plane sapphire. Exposing c-sapphire substrates to alkali metal halide salts such as KI or NaCl together ...

American Chemical Society (ACS)2017

Vacuum ultraviolet excitation luminescence spectroscopy of few-layered MoS2

Andras Kis, Daria Krasnozhon, Wei Cao

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

Valley polarization by spin injection in a light-emitting van der Waals heterojunction

Andras Kis, Oriol López Sánchez, Dmitry Ovchinnikov, Adrien Victor Allain, Shikhar Misra

The band structure of transition metal dichalcogenides (TMDCs) with valence band edges at different locations in the momentum space could be harnessed to build devices that operate relying on the valley degree of freedom. To realize such valleytronic devic ...

American Chemical Society (ACS)2016

Free-standing electronic character of monolayer

Olivier Renault, Andras Kis, Ming-Wei Chen, Dumitru Dumcenco, Yen-Cheng Kung, Hokwon Kim

We have evaluated as-grown MoS2 crystals, epitaxially grown on a monocrystalline sapphire by chemical vapor deposition (CVD), with direct electronic band-structure measurements by energy-filtered k-space photoelectron emission microscopy performed with a c ...

Amer Physical Soc2016

Disorder engineering and conductivity dome in ReS2 with electrolyte gating

Andras Kis, Oleg Yazyev, Diego José Pasquier, Fernando Gargiulo, Dmitry Ovchinnikov, Adrien Victor Allain, Dumitru Dumcenco

Atomically thin rhenium disulphide (ReS2) is a member of the transition metal dichalcogenide family of materials. This two-dimensional semiconductor is characterized by weak interlayer coupling and a distorted 1T structure, which leads to anisotropy in ele ...

Nature Publishing Group2016

Single-layer MoS2 nanopores as nanopower generators

Andras Kis, Aleksandra Radenovic, Michael Graf, Dmitry Ovchinnikov, Jiandong Feng, Ke Liu, Dumitru Dumcenco

Making use of the osmotic pressure difference between fresh water and seawater is an attractive, renewable and clean way to generate power and is known as 'blue energy'(1-3). Another electrokinetic phenomenon, called the streaming potential, occurs when an ...

Nature Publishing Group2016

High-quality Synthetic 2D Transition Metal Dichalcogenide Semiconductors

Andras Kis, Dmitry Ovchinnikov, Dumitru Dumcenco, Kolyo Marinov

We give here an overview on our results on the large-area growth of 2D transition metal dichalcogenide semiconductors MoS2, MoSe2, WSe2 using chemical vapor deposition. The growth of MoS2 on sapphire occurs epitaxially with the crystalline orientation of t ...

Ieee2016

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 and semiconductors in the flatland

Andras Kis, Oleg Yazyev

The fascinating properties of graphene, the first two-dimensional (2D) material, and the accompanying strong activity in the research community have sparked a renewed interest in related layered crystalline materials with unique electronic and optical prop ...

Elsevier2015

Electromechanical oscillations in bilayer graphene

Mohamed Malik Benameur, Andras Kis, Oleg Yazyev, Mahmut Tosun, Fernando Gargiulo, Gabriel Albert Autes, Sajedeh Manzeli

Nanoelectromechanical systems constitute a class of devices lying at the interface between fundamental research and technological applications. Realizing nanoelectromechanical devices based on novel materials such as graphene allows studying their mechanic ...

Nature Research2015

Single-Layer MoS2 Electronics

Andras Kis, Simone Bertolazzi, Dominik Sebastian Lembke

CONSPECTUS: Atomic crystals of two-dimensional materials consisting of single sheets extracted from layered materials are gaining increasing attention. The most well-known material from this group is graphene, a single layer of graphite that can be extract ...

2015

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

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

Piezoresistivity and Strain-induced Band Gap Tuning in Atomically Thin MoS2

Andras Kis, Sajedeh Manzeli, Adrien Victor Allain

Continuous tuning of material properties is highly desirable for a wide range of applications, with strain engineering being an interesting way of achieving it. The tuning range, however, is limited in conventional bulk materials that can suffer from plast ...

American Chemical Society (ACS)2015

Thickness-dependent mobility in two-dimensional MoS2

Andras Kis, Dominik Sebastian Lembke, Adrien Victor Allain

Two-dimensional (2D) semiconductors such as mono and few-layer molybdenum disulphide (MoS2) are very promising for integration in future electronics as they represent the ultimate miniaturization limit in the vertical direction. While monolayer MoS2 attrac ...

Royal Soc Chemistry2015

Identification of single nucleotides in MoS2 nanopores

Andras Kis, Aleksandra Radenovic, Roman Bulushev, Sergey Khlybov, Jiandong Feng, Ke Liu, Dumitru Dumcenco

The size of the sensing region in solid-state nanopores is determined by the size of the pore and the thickness of the pore membrane, so ultrathin membranes such as graphene and single-layer molybdenum disulphide could potentially offer the necessary spati ...

Nature Publishing Group2015

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