Search results for "Transistors"

showing 8 items of 68 documents

Employing Microwave Graphene Field Effect Transistors for Infrared Radiation Detection

2018

In this work, we investigate the possibility of employing graphene field effect transistors, specifically designed for microwave applications, as infrared detectors for telecom applications. Our devices have been fabricated on a sapphire substrate employing CVD-grown transferred graphene. The roles of both the gate dielectric and the DC bias conditions have been evaluated in order to maximize the infrared generated signal through an experimental investigation of the signal-to-noise ratio dependence on the transistor operating point.

lcsh:Applied optics. PhotonicsTechnologyMaterials scienceAtomic and Molecular Physics and OpticInfraredGate dielectricPhysics::Optics02 engineering and technologyDielectricgraphene field effect transistor01 natural sciencesSettore ING-INF/01 - Elettronicalaw.inventionCondensed Matter::Materials Scienceinfrared detectorslaw0103 physical sciencesmicrowave transistorlcsh:QC350-467Electrical and Electronic Engineering010306 general physicsGraphene; graphene field effect transistors; infrared detectors; microwave transistors; Atomic and Molecular Physics and Optics; Electrical and Electronic Engineeringbusiness.industryGraphenePhotoconductivityTransistormicrowave transistorslcsh:TA1501-1820021001 nanoscience & nanotechnologyAtomic and Molecular Physics and Opticsinfrared detector2018-020-021849 ALDOptoelectronicsGraphene0210 nano-technologybusinessddc:600Microwavegraphene field effect transistorslcsh:Optics. LightDC biasIEEE Photonics Journal
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When the Grafting of Double Decker Phthalocyanines on Si(100)-2 × 1 Partly Affects the Molecular Electronic Structure

2016

International audience; A combined X-ray photoelectron spectroscopy (XPS), scanning tunneling microscopy (STM), and density functional theory (DFT) study has been performed to characterize the adsorbate interaction of lutetium biphthalocyanine (LuPc2) molecules on the Si(100)-2 × 1 surface. Large molecule–substrate adsorption energies are computed and are found to compete with the molecule–molecule interactions of the double decker molecules. A particularly good matching between STM images and computed ones confirms the deformation of the molecule upon the absorption process. The comparison between DFT calculations and XP spectra reveals that the electronic distribution in the two plateaus …

lutetium bi-phthalocyanineSiliconXASAtom and Molecular Physics and OpticsSTMAnalytical chemistrychemistry.chemical_element02 engineering and technology010402 general chemistryDFT[ CHIM ] Chemical Sciences01 natural sciencesSi(100)law.inventionAdsorptionX-ray photoelectron spectroscopyscanning tunneling microscopelawbasis-setXPS[CHIM]Chemical SciencessurfaceMoleculePhysical and Theoretical ChemistryBasis setmetal-free phthalocyaninefield-effect transistorsPhthalocyaninebis-phthalocyanine021001 nanoscience & nanotechnology0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialstotal-energy calculationsGeneral EnergyElectronic Structurechemistrysi(001)Chemical physicsthin-filmsaugmented-wave methodAtom- och molekylfysik och optikDensity functional theoryScanning tunneling microscopeAbsorption (chemistry)0210 nano-technologyThe Journal of Physical Chemistry C
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High pentacene transistor performance by engeneering morphology of solution processed thin films

2010

organic electronics thin film transistorsSettore CHIM/02 - Chimica Fisica
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Solution processes for plastic thin film transistors

2009

plastic electronics nanotechnology thin film transistorsSettore CHIM/02 - Chimica Fisica
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On the Achievement of High performance thin film transistors by employing 13,6-N-sulfinylacetamido pentacene and printed PEDOT:PSS electrodes

2010

printed electronics pentacene transistorsSettore CHIM/02 - Chimica Fisica
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Gold Au(I)6 Clusters with Ligand-Derived Atomic Steric Locking: Multifunctional Optoelectrical Properties and Quantum Coherence

2023

Funding Information: This work was supported by the ERC Advanced grant (DRIVEN, ERC‐2016‐AdG‐742829), the ERC grant (834742), the EU H2020‐MSCA‐RISE‐872049 (IPN‐Bio), the Academy of Finland's Centre of Excellence in Molecular Engineering of Biosynthetic Hybrid Materials Research (HYBER, 2014–2019), and Life‐Inspired Hybrid Materials (LIBER, 346108), Academy of Finland project fundings (No. 352900, 314810, 333982, 336144, 352780, 352930 and 353364), FinnCERES and Photonics Research and Innovation (PREIN) flagship programs. The authors acknowledge the provision of facilities and technical support by Aalto University OtaNano – Nanomicroscopy Center (Aalto‐NMC). | openaire: EC/H2020/834742/EU//…

third-harmonic generationquantum coherenceSettore FIS/01 - Fisica Sperimentalenanoclustersfield effect transistorsphotoluminescenceAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materials
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Overview of Power Electronic Switches: A Summary of the Past, State-of-the-Art and Illumination of the Future.

2020

As the need for green and effective utilization of energy continues to grow, the advancements in the energy and power electronics industry are constantly driven by this need, as both industries are intertwined for obvious reasons. The developments in the power electronics industry has over the years hinged on the progress of the semiconductor device industry. The semiconductor device industry could be said to be on the edge of a turn into a new era, a paradigm shift from the conventional silicon devices to the wide band gap semiconductor technologies. While a lot of work is being done in research and manufacturing sectors, it is important to look back at the past, evaluate the current progr…

thyristorsEngineeringinsulated gate bipolar transistorslcsh:Mechanical engineering and machinery02 engineering and technologyReviewbipolar transistors01 natural sciencesElectronic switchpower semiconductor devicesPower electronics0103 physical sciences0202 electrical engineering electronic engineering information engineeringPower semiconductor devicelcsh:TJ1-1570Electrical and Electronic Engineering010302 applied physicsbusiness.industrypower semiconductor switchesMechanical Engineering020208 electrical & electronic engineeringThyristorSemiconductor deviceVDP::Teknologi: 500Work (electrical)Control and Systems EngineeringParadigm shiftState (computer science)businessTelecommunicationspower transistorsMicromachines
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On the achievement of high performance organic thin film transistors by solution processes

2010

transistors plastic electronics printing electronicsSettore CHIM/02 - Chimica Fisica
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