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Santos, Luis F.P. (author), Ribeiro, Bruno (author), Hein, Luis R.O. (author), Alderliesten, R.C. (author), Zarouchas, D. (author), Botelho, Edson C. (author), Costa, Michelle L. (author)This work concerns the fatigue behavior at three different temperature conditions (−40, 20, and 80°C) and the addition of multiwalled carbon nanotube (MWCNT) into a carbon-fiber reinforced poly(ether-imide) composite. The incorporation of MWCNT into the composite increased the tensile strength and Young's modulus by up 5 and 2%, respectively....journal article 2020
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Velea, A. (author), Vollebregt, S. (author), Wardhana, G.K. (author), Giagka, Vasiliki (author)This paper reports on the characterization of a microfabricated wafer-scale, graphene-based, soft implant for spinal cord applications. Graphene is used because of its high transparency and good conductivity, making it suitable for optogenetic applications. Moreover it has a high mechanical strength and is potentially biocompatible. The implant...conference paper 2020
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Harzheim, A. (author), Könemann, Fabian (author), Gotsmann, Bernd (author), van der Zant, H.S.J. (author), Gehring, P. (author)On-chip temperature sensing on a micro- to nanometer scale is becoming more desirable as the complexity of nanodevices keeps increasing and their downscaling continues. The continuation of this trend makes thermal probing and management more and more challenging. This highlights the need for scalable and reliable temperature sensors, which...journal article 2020
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Dolleman, R.J. (author), Verbiest, G.J. (author), Blanter, Y.M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Recent theory has predicted large temperature differences between the in-plane [longitudinal (LA) and transverse (TA)] and out-of-plane [flexural (ZA)] acoustic phonon baths in locally heated suspended graphene. To verify these predictions, and their implications for understanding the nonequilibrium thermodynamics of two-dimensional (2D)...journal article 2020
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Caneva, S. (author), Hermans, Matthijs (author), Lee, M. (author), García-Fuente, Amador (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), Dekker, C. (author), Ferrer, Jaime (author), van der Zant, H.S.J. (author), Gehring, P. (author)Graphene quantum dots (QDs) are intensively studied as platforms for the next generation of quantum electronic devices. Fine tuning of the transport properties in monolayer graphene QDs, in particular with respect to the independent modulation of the tunnel barrier transparencies, remains challenging and is typically addressed using...journal article 2020
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Whiteway, Eric (author), Lee, M. (author), Hilke, Michael (author)Graphene has a high intrinsic thermal conductivity and a high electron mobility. The thermal conductivity of graphene can be significantly reduced when different carbon isotopes are mixed, which can enhance the performance of thermoelectric devices. Here we synthesize isotopic 12C/13C random mixes and isotope superlattices (SLs) with periods...journal article 2020
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Wang, He (author), Cucu Laurenciu, N. (author), Jiang, Y. (author), Cotofana, S.D. (author)To fully unleash the potential of graphene-based devices for neuromorphic computing, we propose a graphene synapse and a graphene neuron that form together a basic Spiking Neural Network (SNN) unit, which can potentially be utilized to implement complex SNNs. Specifically, the proposed synapse enables two fundamental synaptic functionalities,...journal article 2020
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Kabiri, Y. (author)The low contrast of biomolecules in TEM has been a great obstacle for their structure determination and hence to the understanding of their structure-function relation. Historically, single DNA strands remained one the most difficult classes of biomolecular specimens to image, due to low electron scattering strength of its constituent elements....doctoral thesis 2019
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Ricciardella, F. (author), Polichetti, Tiziana (author), Vollebregt, S. (author), Alfano, Brigida (author), Massera, Ettore (author), Sarro, Pasqualina M (author)Limitations such as lack of detected stationary signal and slow signal recovery after detection currently affect graphene-based chemi-sensors operating at room temperature. In this work, we model the behavior of a sensor in a test chamber having limited volume and simulating the environmental conditions. From this model, we mathematically derive...journal article 2019
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Lee, M. (author), Davidovikj, D. (author), Sajadi, B. (author), Siskins, M. (author), Alijani, F. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Despite theoretical predictions that graphene should be impermeable to all gases, practical experiments on sealed graphene nanodrums show small leak rates. Thus far, the exact mechanism for this permeation has remained unclear, because different potential leakage pathways have not been studied separately. Here, we demonstrate a sealing method...journal article 2019
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Botto, L. (author)In liquid-phase exfoliation for the production of 2D nanomaterials fluid forces are used to gently overcome adhesive interlayer forces, leading to single- or few-layer 2D nanomaterials. Predicting accurately the critical fluid shear rate for exfoliation is a crucial challenge. By combining notions of fluid mechanics and fracture mechanics, we...journal article 2019
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Dolleman, R.J. (author), Belardinelli, P. (author), Houri, S. (author), van der Zant, H.S.J. (author), Alijani, F. (author), Steeneken, P.G. (author)Stochastic switching between the two bistable states of a strongly driven mechanical resonator enables detection of weak signals based on probability distributions, in a manner that mimics biological systems. However, conventional silicon resonators at the microscale require a large amount of fluctuation power to achieve a switching rate in the...journal article 2019
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Dolleman, R.J. (author)Micro and nanomechanical sensors are indispensable in modern consumer electronics, automotive and medical industries. Gas pressure sensors are currently the most widespread membrane-based micromechanical sensors. By reducing their size, their unit costs and energy consumption drops, making them more attractive for integration in new applications...doctoral thesis 2018
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Rajegowda, Rakesh (author), Kannam, Sridhar Kumar (author), Hartkamp, Remco (author), Sathian, Sarith P. (author)We investigate thermally driven water droplet transport on graphene and hexagonal boron nitride (h-BN) surfaces using molecular dynamics simulations. The two surfaces considered here have different wettabilities with a significant difference in the mode of droplet transport. The water droplet travels along a straighter path on the h-BN sheet...journal article 2018
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Davidovikj, D. (author), Bouwmeester, Damian (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)We report on the development of a pneumatically coupled graphene membrane system, comprising of two circular cavities connected by a narrow trench. Both cavities and the trench are covered by a thin few-layer graphene membrane to form a sealed dumbbell-shaped chamber. Local electrodes at the bottom of each cavity allow for actuation of each...journal article 2018
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Kabiri, Y. (author), Ananth, A.N. (author), van der Torre, J. (author), Katan, A.J. (author), Hong, Jin Yong (author), Malladi, S.R.K. (author), Kong, Jing (author), Zandbergen, H.W. (author), Dekker, C. (author)While graphene may appear to be the ultimate support membrane for transmission electron microscopy (TEM) imaging of DNA nanostructures, very little is known if it poses an advantage over conventional carbon supports in terms of resolution and contrast. Microscopic investigations are carried out on DNA origami nanoplates that are supported...journal article 2017
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Nanda, G. (author)This thesis describes the capabilities of the helium ion microscope (HIM) and that of graphene to explore fundamental physics and novel applications. While graphene offers superior electronic properties, the helium ion microscope allows us to combine imaging and modification of materials at the nanoscale. We used the capabilities of HIM to grow...doctoral thesis 2017
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- Vicarelli, L. (author) doctoral thesis 2017
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Low Temperature CVD Grown Graphene for Highly Selective Gas Sensors Working under Ambient ConditionsRicciardella, F. (author), Vollebregt, S. (author), Polichetti, T. (author), Alfano, B. (author), Massera, E. (author), Sarro, Pasqualina M (author)In this paper we report on gas sensors based on graphene grown by Chemical Vapor Deposition at 850 °C. Mo was used as catalyst for graphene nucleation. Resistors were directly designed on pre-patterned Mo using the transfer-free process we recently developed, thus avoiding films damage during the transfer to the target substrate. Devices...conference paper 2017
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Yazdan Mehr, M. (author), Vollebregt, S. (author), van Driel, W.D. (author), Zhang, Kouchi (author)A graphene monolayer has been successfully coated on one side of a bisphenol-A-polycarbonate (BPA-PC) plate, used as a substrate for remote phosphor applications in light-emitting diode (LED)-based products. Using a photoresist transferring method, graphene sheet has been coated on BPA-PC plates. The results show that this graphene monolayer...journal article 2017