Dr. Filippo Giubileo
CNR-SPIN
Research Director at National Research Council (CNR), SPIN I...
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Academic Career Length
27Years (2000-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications9 October 2001 in Physical Review Letters
Journal Article
Filippo GiubileoDRD. Roditchev
D. Roditchev
WSW. Sacks
W. Sacks
RLR. Lamy
R. Lamy
DTD. X. Thanh
D. X. Thanh
PMPh. Monod
Ph. Monod
+4
We report on the temperature dependence of the quasiparticle density of states in the simple binary compound directly measured using scanning tunneling microscope (STM). To achieve high quality tunneling conditions, a small crystal of is used as a tip in the STM experiment. The “sample” is chosen to be a 2H- single crystal presenting an atomically flat surface. At low temperature the tunneling conductance spectra show a gap at the Fermi energy followed by two well-pronounced conductance peaks on each side. They appear at voltages and . With rising temperature both peaks disappear at the of the bulk , a behavior consistent with the model of two-gap superconductivity. The possibility of a particular proximity effect is also discussed.
23 October 2017 in 2D Materials
Journal Article
Antonio Di BartolomeoLGLuca Genovese
Luca Genovese
Filippo GiubileoLILaura Iemmo
Laura Iemmo
GLGiuseppe Luongo
Giuseppe LuongoMSMarika Schleberger
Marika Schleberger +1
We investigate the origin of the hysteresis observed in the transfer characteristics of back-gated field-effect transistors with an exfoliated MoS 2 channel. We find that the hysteresis is strongly enhanced by increasing either gate voltage, pressure, temperature or light intensity. Our measurements reveal a step-like behavior of the hysteresis around room temperature, which we explain as water-facilitated charge trapping at the MoS 2 /SiO 2 interface. We conclude that intrinsic defects in MoS 2 , such as S vacancies, which result in effective positive charge trapping, play an important role, besides H 2 O and O 2 adsorbates on the unpassivated device surface. We show that the bistability associated to the hysteresis can be exploited in memory devices.
1 August 2017 in Progress in Surface Science
Journal Article
Filippo GiubileoAntonio Di Bartolomeo4 May 2017 in Nanotechnology
Journal Article
Antonio Di BartolomeoLGLuca Genovese
Luca Genovese
TFTobias Foller
Tobias Foller
Filippo GiubileoGLGiuseppe Luongo
Giuseppe LuongoMSMarika Schleberger
Marika Schleberger +3
We study electrical transport properties in exfoliated molybdenum disulfide (MoS 2 ) back-gated field effect transistors at low drain bias and under different illumination intensities. It is found that photoconductive and photogating effect as well as space charge limited conduction can simultaneously occur. We point out that the photoconductivity increases logarithmically with the light intensity and can persist with a decay time longer than 10 4 s, due to photo-charge trapping at the MoS 2 /SiO 2 interface and in MoS 2 defects. The transfer characteristics present hysteresis that is enhanced by illumination. At low drain bias, the devices feature low contact resistance of ON current as high as 10 5 ON–OFF ratio, mobility of ∼1 cm 2 V −1 s −1 and photoresponsivity
21 May 2018 in Advanced Functional Materials
Journal Article
Antonio Di BartolomeoAGAlessandro Grillo
Alessandro Grillo
Francesca UrbanLILaura Iemmo
Laura Iemmo
Filippo GiubileoLALay-Kee Ang
Lay-Kee Ang +5
Journal Article
Filippo GiubileoAntonio Di BartolomeoLILaura Iemmo
Laura IemmoGLGiuseppe Luongo
Giuseppe LuongoFrancesca UrbanField emission electron sources in vacuum electronics are largely considered to achieve faster response, higher efficiency and lower energy consumption in comparison with conventional thermionic emitters. Carbon nanotubes had a leading role in renewing attention to field emission technologies in the early 1990s, due to their exceptional electron emitting properties enabled by their large aspect ratio, high electrical conductivity, and thermal and chemical stability. In the last decade, the search for improved emitters has been extended to several carbon nanostructures, comprising carbon nanotubes, either individual or films, diamond structures, graphitic materials, graphene, etc. Here, we review the main results in the development of carbon-based field emitters.
About Me
Dr. Filippo Giubileo works as Research Director at the Institute “Superconductors, Innovative materials and devices” (SPIN) of the Italian National Research Council (CNR), since 2004. His research activity deals with electrical properties of 1D and 2D nanomaterials, and their application as field effect transistors, photodetectors, chemical sensors, field emitters. His expertise includes advanced surface analysis on nanometer scale by scanning probe microscopy/spectroscopy in high magnetic field and variable temperatures, and characterization of superconducting heterostructures, pairing symmetry and electronic properties in superconductors. He serves as member of editorial board for several international journals (Nanomaterials, Nano Express, Journal of Nanomaterials, Chemosensors). He has published more than 100 papers in peer-reviewed journals. He was Chair-Organizer for six international conferences (ISMN08, SM-2010, S4E-2014, GM-2016, TTN-2018, NANO M&D-2019).