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Atomic resolution high angle annular dark field imaging of suspended, single-layer graphene, onto which the metals Cr, Ti, Pd, Ni, Al and Au atoms had been deposited was carried out in an aberration corrected scanning transmission electron…

Mesoscale and Nanoscale Physics · Physics 2012-08-02 Quentin M. Ramasse , Recep Zan , Ursel Bangert , Danil W. Boukhvalov , Young-Woo Son , Konstantin S. Novoselov

Graphene-based sponges doped with atomic nitrogen and boron were applied for the electrochemical degradation of persistent organic contaminants in one-pass, flow-through mode, and in a low-conductivity supporting electrolyte. The B-doped…

Chemical Physics · Physics 2021-09-30 Luis Baptista-Pires , Giannis-Florjan Norra , Jelena Radjenovic

Adsorbed atoms and molecules play an important role in controlling and tuning the functional properties of two-dimensional (2D) materials. Understanding and predicting this process from theory is challenging because of the need to capture…

Mesoscale and Nanoscale Physics · Physics 2017-07-12 Fabiano Corsetti , Arash A. Mostofi , Johannes Lischner

Following a recently manifested guide of how to team up infrared transparency and high electrical conductivity within semimetal materials [C. Cui $et$ $al.$ Prog. Mater. Sci. 2023, 136, 101112], we evaluate an applicability of the calcium…

With superior optical properties, high flexibility in engineering its material properties, and strong capability for large-scale on-chip integration, graphene oxide (GO) is an attractive solution for on-chip integration of two-dimensional…

Optics · Physics 2021-02-16 Jiayang Wu , Linnan Jia , Yuning Zhang , Yang Qu , Baohua Jia , David J. Moss

Semiconducting 2D materials, such as molybdenum disulfide (MoS2) and other members of the transition metal dichalcogenide family, have emerged as promising materials for applications in high performance nanoelectronics that exhibit…

Applied Physics · Physics 2019-05-24 David Maeso , Andres Castellanos-Gomez , Nicolas Agraït , Gabino Rubio-Bollinger

We determine conditions for the formation of compressible stripes near the quantum Hall effect (QHE) edges of top-gated epitaxial graphene on Si-terminated SiC (G/SiC) and compare those to graphene exfoliated onto insulating substrate in…

Mesoscale and Nanoscale Physics · Physics 2018-02-09 Sergey Slizovskiy , Vladimir I. Fal'ko

Due to the shorter channel length allowing faster ion/charge movement, nanoscale molecular thin films can be attractive electronic components for next-generation high-performing energy storage devices. However, controlling chemical…

Applied Physics · Physics 2023-03-28 Ritu Gupta , Ankur Malik , Vincent Vivier , Prakash Chandra Mondal

Van der Waals heterostuctures, made from stacks of two-dimensional materials, exhibit unique light-matter interactions and are promising for novel optoelectronic devices. The performance of such devices is governed by near-field coupling…

Mesoscale and Nanoscale Physics · Physics 2018-01-23 Guillaume Froehlicher , Etienne Lorchat , Stéphane Berciaud

We employed graphene as a patternable template to protect the intrinsic surface states of thin films of topological insulators (TIs) from environment. Here we find that the graphene provides high-quality interface so that the Shubnikov de…

Interface interactions in 2D vertically stacked heterostructures play an important role in optoe-lectronic applications, photodetectors based on graphene/InSe heterostructures had shown promising performance nowadays. However, nonlinear…

Optics · Physics 2023-05-12 Jialin Li , Lizhen Wang , Yuzhong Chen , Yujie Li , Haiming Zhu , Linjun Li , Limin Tong1

Two dimensional (2D) materials exhibit superior properties in electronic and optoelectronic fields. The wide demand for high performance optoelectronic devices promotes the exploration of diversified 2D materials. Recently, 2D covalent…

The concept of alloy engineering has emerged as a viable technique towards tuning the bandgap as well as engineering the defect levels in two-dimensional transition metal dichalcognides (TMDC). Possibility to synthesize these ultrathin TMDC…

Materials Science · Physics 2022-07-01 Shubhrasish Mukherjee , Didhiti Bhattacharya , Samit Kumar Ray , Atindra Nath Pal

We show that thin dielectric films can be used to enhance the performance of passive atomic mirrors by enabling quantum reflection probabilities of over 90% for atoms incident at velocities ~1 mm/s, achieved in recent experiments. This…

Quantum Gases · Physics 2015-05-28 T. E. Judd , R. G. Scott , A. M. Martin , B. Kaczmarek , T. M. Fromhold

Graphene is an ideal material for hot-electron bolometers, due to its low heat capacity and weak electron-phonon coupling. Nanostructuring graphene with quantum dot constrictions yields detectors with extraordinarily high intrinsic…

Graphene grown via chemical vapour deposition (CVD) on copper foil has emerged as a high-quality, scalable material, that can be easily integrated on technologically relevant platforms to develop promising applications in the fields of…

Devices made from two dimensional materials such as graphene and transition metal dichalcogenides exhibit remarkable electronic properties of interest to many subdisciplines of nanoscience. Owing to their 2D nature, their quality is highly…

Mesoscale and Nanoscale Physics · Physics 2019-11-12 Michael A. Altvater , Shuang Wu , Zhenyuan Zhang , Tianhui Zhu , Guohong Li , Kenji Watanabe , Takashi Taniguchi , Eva Y. Andrei

Graphene is a very attractive material for nanomechanical devices and membrane applications. Graphene blisters based on silicon oxide micro-cavities are a simple but relevant example of nanoactuators. A drawback of this experimental set up…

Materials Science · Physics 2020-08-12 Y. Manzanares-Negro , P. Ares , M. Jaafar , G. López-Polín , C. Gómez-Navarro , J. Gómez-Herrero

Using heterodyne transient grating spectroscopy, we observe a significant enhancement of exciton diffusion within a monolayer WSe$_2$ stacked on top of graphene. We further demonstrate that the diffusion dynamics can be optically tuned on…

The enhanced nonlinear optical response of a one-dimensional (1D) photonic crystal (PC) made from polymers and graphene composites is observed. The graphene PC was fabricated by spin-coating. It shows obvious bandgaps at two wavelengths in…