Browsing by Subject "Grafè"
Now showing items 1-20 of 85
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235. Un campus d'exel.lència internacional per a un nou model energètic
(Oficina de Mitjans de Comunicació, 2010-11)
Article
Open Access -
Adhesion and friction control localized folding in supported graphene
(American Institute of Physics (AIP), 2013-05)
Article
Restricted access - publisher's policyGraphene deposited on planar surfaces often exhibits sharp and localized folds delimiting seemingly planar regions, as a result of compressive stresses transmitted by the substrate. Such folds alter the electronic and ... -
Broadband conductivity of graphene from DC to THz
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Conference report
Restricted access - publisher's policyIn this paper for the first time we have studied the broadband sheet conductance of few-layer graphene on single-crystal quartz substrate. Few-layer graphene was grown on Nickel coated Si wafers and transferred to the ... -
Caracterització optoelectrònica del grafè sobre diferents substrats a altes freqüències
(Universitat Politècnica de Catalunya, 2014-09-09)
Master thesis (pre-Bologna period)
Open Access[ANGLÈS] This project presents a study for both optic and electronic properties of graphene and possible variations of different physical magnitudes that are produced in a material when a single layer of graphene is deposited ... -
Chondroinductive alginate-based hydrogels having graphene oxide for 3D printed scaffold fabrication
(2020-01-07)
Article
Restricted access - publisher's policyScaffolds based on bioconjugated hydrogels are attractive for tissue engineering because they can partly mimic human tissue characteristics. For example, they can further increase their bioactivity with cells. However, ... -
Coexistence of wrinkles and blisters in supported graphene
(Elsevier, 2017-07-01)
Article
Open AccessBlisters induced by gas trapped in the interstitial space between supported graphene and the substrate are commonly observed. These blisters are often quasi-spherical with a circular rim, but polygonal blisters are also ... -
Colloidal Quantum Dot Tandem Solar Cells Using CVD Graphene as An Atomically Thin Intermediate Recombination Layer
(ACS, 2018-06-28)
Article
Open AccessTwo-terminal tandem cell architectures are believed to be an effective way to further improve the power conversion efficiency in solution processed photovoltaics. To design an efficient tandem solar cell, two key issues ... -
Competing Ultrafast Energy Relaxation Pathways in Photoexcited Graphene
(ACS Publications, 2014-09-23)
Article
Open Access -
Contactless electrical resistance of 2D materials using a rutile resonator
(2019-12-12)
Article
Restricted access - publisher's policyMeasuring the electrical surface resistance of 2D materials without contact can provide a method for obtaining their intrinsic characterisation. The aim of this paper is to show that a rutile dielectric resonator (RDR) can ... -
Direct growth of 2D and 3D graphene nano-structures over large glass substrates by tuning a sacrificial Cu-template layer
(IOP, 2017-03-28)
Article
Open AccessWe demonstrate direct growth of two-dimensional (2D) and three-dimensional (3D) graphene structures on glass substrates. By starting from catalytic copper nanoparticles of different densities and using chemical vapour ... -
Double-layer graphene for enhanced tunable infrared plasmonics
(Nature, 2017-06-02)
Article
Open AccessGraphene is emerging as a promising material for photonic applications owing to its unique optoelectronic properties. Graphene supports tunable, long-lived and extremely confined plasmons that have great potential for ... -
Dry transfer of graphene to dielectrics and flexible substrates using polyimide as a transparent and stable intermediate layer
(IOP, 2018-04-30)
Article
Open AccessWe demonstrate the direct transfer of graphene from Cu foil to glass and flexible substrates such as PET, using polyimide (PI) mixed with an aminosilane (3-aminopropyltrimethoxysilane) or only PI, respectively, as intermediate ... -
Educational toolkit based on design methodologies to promote scientific knowledge transfer in secondary schools: a graphene-centered case study
(OmniaScience, 2020-04)
Article
Open AccessNanoscience and nanotechnology are two key areas in the development of new technologies. However, scientific advances in these fields are still far removed from the contents taught in schools. But what if basic concepts ... -
Effect of lattice defects on the transport properties of graphene nanoribbon
(2019)
Conference report
Restricted access - publisher's policyGraphene nanoribbons are the most emerging graphene structures for electronic applications. Here, we present our calculation results on the impact of lattice defects on the transport properties of these structures. Preliminary ... -
Effects of carbon nanotubes/graphene nanoplatelets hybrid systems on the structure and properties of polyetherimide-based foams
(2018-03-21)
Article
Open AccessFoams based on polyetherimide (PEI) with carbon nanotubes (CNT) and PEI with graphene nanoplatelets (GnP) combined with CNT were prepared by water vapor induced phase separation. Prior to foaming, variable amounts of only ... -
Effects of graphene nanoplatelets and cellular structure on the thermal conductivity of polysulfone nanocomposite foams
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-01)
Article
Open AccessPolysulfone (PSU) foams containing 0–10 wt% graphene nanoplatelets (GnP) were prepared using two foaming methods. Alongside the analysis of the cellular structure, their thermal conductivity was measured and analyzed. The ... -
Effects of graphene nanoplatelets on the morphology of polycarbonate-graphene composite foams prepared by supercritical carbon dioxide two-step foaming
(2015-05)
Article
Open AccessLow density polycarbonate foams containing different amounts of graphene nanoplatelets with variable cellular morphologies were prepared using a supercritical carbon dioxide two-step foaming process, which consisted of the ... -
Electrical control of optical emitter relaxation pathways enabled by graphene
(Nature Publishing Group, 2015-01-19)
Article
Open AccessControlling the energy flow processes and the associated energy relaxation rates of a light emitter is of fundamental interest and has many applications in the fields of quantum optics, photovoltaics, photodetection, ... -
Electrically tunable nonlinear plasmonics in graphene nanoislands
(Nature Publishin group, 2014-12-11)
Article
Open AccessNonlinear optical processes rely on the intrinsically weak interactions between photons enabled by their coupling with matter. Unfortunately, many applications in nonlinear optics are severely hindered by the small response ... -
Electromagnetic shielding effectiveness of polycarbonate/graphene nanocomposite foams processed in 2-steps with supercritical carbon dioxide
(2015)
Article
Open AccessThe electromagnetic interference (EMI) shielding properties of polycarbonate/graphene composites foamed with supercritical carbon dioxide were investigated as a function of cellular morphology and graphene particle dispersion. ...
