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In order to realise the potential of graphene nanocomposites it is vital to control the degree of dispersion and achieve a strong graphene polymer interface. Herein, we developed a facile grafting to functionalisation approach for graphene…

For optical communication, information is converted between optical and electrical signal domains at a high rate. The devices to achieve such a conversion are various types of electro-optical modulators and photodetectors. These two types…

Optics · Physics 2015-06-18 Nathan Youngblood , Yoska Anugrah , Rui Ma , Steven J. Koester , Mo Li

We present prominent photoresponse of bio-inspired graphene-based phototransistors sensitized with chlorophyll molecules. The hybrid graphene-chlorophyll phototransistors exhibit a high gain of 10^6 electrons per photon and a high…

Heterostructures prepared from graphene and fluorographene (FG) using the technology of 2D printing on solid and flexible substrates were fabricated and studied. Excellent stability of printed graphene layers and, to a lesser degree,…

Two-dimensional heterostructures combining sp-sp2 hybridization,blending graphene with graphyne-based allotropes, offer substantial potential for enhancing the tunability of electronic and transport properties while providing significant…

We found that an optimized mixture of graphene and multilayer graphene - produced by the high-yield inexpensive liquid-phase-exfoliation technique - can lead to an extremely strong enhancement of the cross-plane thermal conductivity K of…

Materials Science · Physics 2015-06-03 Khan M. F. Shahil , Alexander A. Balandin

Scientists are always yearning for new and exciting ways to unlock graphene's true potential. However, recent reports suggest this two-dimensional material may harbor some unique properties, making it a viable candidate for use in…

Materials Science · Physics 2014-06-04 F. V. Kusmartsev , W. M. Wu , M. P. Pierpoint , K. C. Yung

Electronic textiles (e-textiles) are about to face tremendous environmental and resource challenges due to the complexity of sorting, the risk to supplies and metal contamination in textile recycling streams. This is because e-textiles are…

Graphene is a unique material to study fundamental limits of plasmonics. Apart from the ultimate single-layer thickness, its carrier concentration can be tuned by chemical doping or applying an electric field. In this manner the…

Mesoscale and Nanoscale Physics · Physics 2017-11-30 Dmitry A. Kuzmin , Igor V. Bychkov , Vladimir G. Shavrov , Vasily V. Temnov

At present, analytical lab-on-chip devices find their usage in different facets of chemical analysis, biological analysis, point of care analysis, biosensors, etc. In addition, graphene has already established itself as an essential…

Applied Physics · Physics 2022-04-13 Joydip Sengupta , Chaudhery Mustansar Hussain

Understanding the adhesion between graphene and other materials is crucial for achieving more reliable graphene-based applications in electronic devices and nanocomposites. The ultra-thin profile of graphene, however, poses significant…

Materials Science · Physics 2011-11-10 Zhao Zhang , Teng Li

Graphene is one of the most important materials in science today due to its unique and remarkable electronic, thermal and mechanical properties. However in its pristine state, graphene is a gapless semiconductor, what limits its use in…

Materials Science · Physics 2014-08-13 P. A. S. Autreto , J. M. de Sousa , D. S. Galvao

For future on-chip communication schemes, it is essential to integrate nanoscale materials with an ultrafast optoelectronic functionality into high-frequency circuits. The atomically thin graphene has been widely demonstrated to be suitable…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 Andreas Brenneis , Felix Schade , Simon Drieschner , Florian Heimbach , Helmut Karl , Jose A. Garrido , Alexander W. Holleitner

The production of large area interfaces and the use of scalable methods to build-up designed nanostructures generating advanced functional properties are of high interest for many materials science applications. Nevertheless, large area…

Graphene, the 2D form of carbon, has excellent mechanical, electrical and thermal properties and a variety of potential applications including NEMS, protective coatings, transparent electrodes in display devices and biological applications.…

Mesoscale and Nanoscale Physics · Physics 2018-08-20 Narasimha G Boddeti , Rong Long , Martin L Dunn

Interactions between localized plasmons in proximal nanostructures is a well-studied phenomenon. Here we explore plasmon plasmon interactions in connected extended systems. Such systems can now be easily produced using graphene.…

Mesoscale and Nanoscale Physics · Physics 2016-03-07 Daniel Rodrigo , Tony Low , Damon B. Farmer , Hatice Altug , Phaedon Avouris

We present a method where a bioactive functional layer on an electrically conductive thin film with high sheet resistance can be effectively used for complementary electrochemical impedance spectroscopy biosensing. The functional layer's…

Materials Science · Physics 2025-04-04 Munis Khan , Ivan Mijakovic , Santosh Pandit , August Yurgens

The combination of graphene with silicon in hybrid devices has attracted attention extensively over the last decade. Most of such devices were proposed for photonics and radiofrequency applications. In this work, we present a unique…

Graphene-based nanostructured systems and van-der-Waals heterostructures comprise a material class of growing technological and scientific importance. Joining materials with vastly different properties, polymer-graphene heterosystems…

Soft Condensed Matter · Physics 2020-08-26 Max Gulde , Anastassia N. Rissanou , Vagelis Harmandaris , Marcus Müller , Sascha Schäfer , Claus Ropers

The gate-controllable complex conductivity of graphene offers unprecedented opportunities for reconfigurable plasmonics at THz and mid-IR frequencies. However, the requirement of a gating electrode close to graphene and the single `control…

Mesoscale and Nanoscale Physics · Physics 2015-03-03 J. S. Gomez-Diaz , C. Moldovan , S. Capdevilla , J. Romeu , L. S. Bernard , A. Magrez , A. M. Ionescu , J. Perruisseau-Carrier