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The Graphene Revolution: Part 5 | COMSOL Blog

Whether you’re interested in the applications or the manufacture of graphene, COMSOL offers a wide range of products that can provide insight and a better understanding of these processes. Further Reading. Collection of articles on new products using graphene; Other Posts in This Series. The Graphene Revolution: Part 1; The Graphene ...

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The Graphene Revolution: Part 2 | COMSOL Blog

The fact that graphene consists of a single layer of atoms means the aspect ratio of any graphene-based structure may be very high. High aspect geometries present their own array of modeling challenges. Thermal Modeling of Graphene. COMSOL provides a wide range of tools to assist in modeling geometries and features with very high aspect ratios.

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Slow light performance enhancement of graphene …

2019-6-6 · Here, a graphene Kubo model is built into COMSOL, in which the complex effective index of graphene is expressed as a function of frequency and chemical potential. The 2D finite element method is employed to calculate the propagation loss in COMSOL. Four monitors in total are added along the propagation direction with an interval distance of ...

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Graphene Transistors - GFET - Graphene Field Effect ...

Written By: Miklos Bolza. Graphene has been revolutionizing electronics since October 2004 when Andre Geim and Kostya Novoselov first determined how to remove a single layer of carbon lattice from graphite.The production and research of today’s graphene field effect transistors (GFETs) would not have been possible without the past two decades of research, and offer many benefits over ...

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COMSOL Access

Access to the COMSOL Exchange - online model sharing; Participate in the community discussion board; Download product updates* Download evaluation license** * Restricted to customers with active subscription. ** Requires a passcode. If you do not yet have a COMSOL …

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Comsol - DutchHTS

Within the research community — and on the COMSOL Blog — graphene has been a topic of great interest. The unique properties that make this material so remarkable can also make it challenging to analyze. In simulation, a particularly difficult question to address is whether graphene should be modeled as a 2D sheet or a thin 3D volume.

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Enhanced Photothermal Effect of Plasmonic …

2019-12-12 · We report plasmonic gold nanoshells and nanorods coated with reduced graphene oxide that produce an enhanced photothermal effect when stimulated by near-infrared (NIR) light. Electrostatic interactions between nanosized graphene oxide and gold nanoparticles followed by in situ chemical reduction generated reduced graphene oxide-coated nanoparticles; the coating was demonstrated …

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Numerical simulation of heat distribution in RGO …

2020-2-1 · In Graphene, the heat mostly propagates through conduction due to acoustic phonons or atomic vibrations and thus if graphene is used as an electrode, the heat conduction is accelerated to dissipate to the ambient via conduction or by spontaneous transfer of thermal energy from graphene to air. In COMSOL, one can specify the power of the heat ...

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Ultrasensitive and ultrathin phototransistors and …

INTRODUCTION. Graphene emerged as the dream material for electronic and optoelectronic applications due to its broad spectral bandwidth, excellent carrier transport properties with very high mobility (electron mobility, >15,000 cm 2 ·V −1 ·s −1), and exceptional stability in ambient conditions and outstanding flexibility (1, 2).A plethora of composites and devices have been developed for ...

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Ultrasensitive and ultrathin phototransistors and …

INTRODUCTION. Graphene emerged as the dream material for electronic and optoelectronic applications due to its broad spectral bandwidth, excellent carrier transport properties with very high mobility (electron mobility, >15,000 cm 2 ·V −1 ·s −1), and exceptional stability in ambient conditions and outstanding flexibility (1, 2).A plethora of composites and devices have been developed for ...

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Exploring the Potential Applications of Graphene …

Graphene is both strong and lightweight, providing many potential applications of graphene-based electrical and structural devices. Thanks to COMSOL Multiphysics®, with its state-of-the-art solvers, optimized by Intel® to run on their processors, simulating such applications is now straightforward.

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Exploring the Potential Applications of Graphene …

Graphene is both strong and lightweight, providing many potential applications of graphene-based electrical and structural devices. Thanks to COMSOL Multiphysics®, with its state-of-the-art solvers, optimized by Intel® to run on their processors, simulating such applications is now straightforward.

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Multilayer graphene condenser microphone - …

2015-11-26 · Graphene has emerged as an exciting new material for fundamental research and novel applications, due to its many remarkable properties such as ultrahigh carrier mobility [], high optical transparency [2, 3], and enormous chemical reactivity [].Furthermore, graphene shows record high thermal conductivity [] and a Young's modulus of 1 TPa [], making it a durable thin membrane.

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Multifunctional Piezoelectric Heterostructure of …

2019-9-25 · About 3.93 billion tons of wastewater containing heavy metal complexes are discharged (e.g., from the electroplating industry) every year in China alone. It is challenging to appropriately treat such wastewaters. Here, a multifunctional composite nanowires BaTiO3@graphene was designed based on Comsol simulations and made into 3D millimeter-sphere in order to facilitate practical application ...

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Graphene Transistors - GFET - Graphene Field Effect ...

Written By: Miklos Bolza. Graphene has been revolutionizing electronics since October 2004 when Andre Geim and Kostya Novoselov first determined how to remove a single layer of carbon lattice from graphite.The production and research of today’s graphene field effect transistors (GFETs) would not have been possible without the past two decades of research, and offer many benefits over ...