The research aims at investigating the basic physical processes
underlying the functioning of polycrystalline semiconductors and superconductors on the basis of current noise investigation.
One debated point concerns the mechanism of charge transport and
the role of traps. Current noise measurements can provide very deep
insight in the optoelectronic properties of semiconductors. We have demonstrated that the noise
analysis can be particularly useful when the nonuniform charge
distribution due to the presence extended defect at the
metal-semiconductor interface or at the grain boundary should be
considered in the description of the device. We study current noise and
I-V characteristics of polycrystalline polyacene layers in the dark and in
the presence of monochromatic radiation.
Furthermore we are concerned with the investigation of stochastic processes in:
(1) GaAs/AlGaAs Quantum Well Infrared Photodetectors (QWIPs),
(2) InGaAs/GaAS Self-Assembled Quantum Dot Infrared Photodetectors (QDIPs)
These devices are characterized by charge carrier density fluctuations exceeding or suppressed than the simple shot noise according to the polarizataion bias.
We have developed a noise theory that explains the suppression/enhancement of noise in QWIPs in
terms of the modulation effect by the emission/capture of the electrons from the first Quantum
Wells occurring in the regime of Fowler-Nordheim (field assisted) tunneling of elementary random events .
Noise in devices with an arbitrary number N of Quantum Wells has been also approached
by a Langevin Equation with a discrete set of random noise source terms.
A. Carbone, M. Gilli, P. Mazzetti, L. Ponta
Role of non-sinusoidal current-phase relation in the model of superconductive-normal transition [PDF]
arXiv:0912.0367
A. Carbone, C. Pennetta, L. Reggiani,
Trapping-detrapping fluctuations in organic space charge layers
[PDF]
Appl. Phys. Lett. 95, pp 23001-23003, (2009)
[Selected for the Dec. 2009 issue of APL: Organic Electronics and Photonics]
A. Carbone, R. Introzzi and H.C. Liu
Photo and Dark Current Noise in Self-assembled Quantum Dot Infrared Photodetectors
[PDF]
Infr. Phys. & Tech. 52, pp 260-263 (2009)
L. Ponta, A. Carbone, M. Gilli, P. Mazzetti
Resistive transition in disordered granular superconductors: A numerical study
[PDF]
Phys. Rev. B 79, 134513 (2009)
[Selected for the Virtual Journal on Applied Superconductivity]
L. Ponta, A. Carbone, M. Gilli, P. Mazzetti
Resistive layers formation during the superconductor-normal transition of high-Tc superconductors
IEEE Proc. pp. 855-860 ISBN 978-1-4244-3878-5/ (2009)
C. Pennetta, A. Carbone, L. Reggiani,
Transport and excess noise in polyacenes under trap-filling transition
J. Phys. Conf. Series, pp. 012093-1-012093-4, 193, ISSN: 1742-6596 (2009)
M. Tizzoni, A. Carbone, C. Pennetta, L. Reggiani
Noise maximum at trap-filling transition in polyacenes.
AIP Conference Proceedings, 1129, 109 (2009).
A. Carbone
Noise modeling in quantum IR photodetectors [PDF]
LEOS Summer Topical Meeting, art. no. 1694048, pp. 21-22 (2006)
[Invited]
A. Carbone,
B. Kutrezba-Kotowska, D. Kotowski
f-g Current Fluctuations in Organic Semiconductors: Evidence for Percolation
Eur. J. Phys. B, 50, 77 (2006)
[pdf]
A. Carbone,
B. Kutrezba-Kotowska, D. Kotowski
Space-charge-limited current fluctuations in organic semiconductors
Phys. Rev. Lett. 95, 236601 (2005)
[pdf]
A. Carbone, R. Introzzi and H.C. Liu
Langevin approach to the generation-recombination noise of a multi-quantum-well infrared photodetector
Infr. Phys. and Tech. 47, 9 (2005)
[pdf]
A. Carbone, R. Introzzi, H.C. Liu and L. Reggiani
On a Semi-Classical Theory of Noise in Quantum Well Infrared
Photodetectors with a Discrete Set of Emission-Capture Centers
AIP Conf. Proc. 800, 466 (2005)
[Invited]
A. Carbone, R. Introzzi and H.C. Liu
Photocurrent Noise in Quantum Dot Infrared Photodetectors
AIP Conf. Proc. 780, 397 (2005)
[PDF]
B. Kutrezba-Kotowska, D. Kotowski, A.Carbone, J. Godlewski
Photocurrent noise in space-charge-limited and in diffusion-limited current regime of polycrystalline tetracene
Molecular Physics Report 39, 150 (2004)
A. Carbone,
B. Kutrezba-Kotowska, D. Kotowski, J. Godlewski
Role of charge-dipole correlation in the photocurrent noise in tetracene
Fluctuations and Noise in Photonics and Quantum Optics II, Part of Fluctuations and Noise SPIE Conference, Maspalomas, Gran Canaria (Spain), 25-28 May (2004)
A. Carbone,
B. Kutrezba-Kotowska, D. Kotowski, J. Godlewski
Photocurrent noise in the space-charge-limited and in the diffusion-limited current regime of polycrystalline tetracene
Organic Optoelectronics and Photonics, Part of Photonics Europe SPIE Conference, Strasbourg (France), 26-30 April, (2004)
A. Carbone, R. Introzzi and H.C. Liu
Photocurrent noise in multi-quantum-well infrared photodetectors
Appl. Phys. Lett. 82, 4292 (2003)
A. Carbone R. Introzzi and H.C. Liu
Electric field redistribution under IR radiation in quantum well infrared photodetectors as
deduced from current noise measurements
Infr. Phys. and Tech. 44, 363 (2003)
A. Carbone and H.C. Liu
Photocurrent Noise in QWIPs with different number of wells: signature of non-uniform potential distribution over periods
Fluctuation and Noise in Photonics and Quantum Optics (Eds. D. Abbott, J.H. Shapiro, Y. Yamamoto)
Proc. of SPIE 5111, 183 (2003)
A. Carbone and P. Mazzetti
Noise Gain vs Capture Probability in single quantum well infrared photodetectors at low bias voltages
Infr. Phys. and Tech. 42, 185 (2001)
A. Carbone, P. Mazzetti and F. Rossi
Low-frequency Photocurrent Noise in Semiconductors: Effect of nonlinear current-voltage characteristics
Appl. Phys. Lett. 78, 2518 (2001)
A.Carbone, P.Mazzetti and F. Rossi
Low-frequency Photocurrent Noise in Semiconductors: Effect of nonlinear current-voltage characteristics
Appl. Phys. Lett 78, 2518 (2001)
A. Carbone and P. Mazzetti
Effect of Coulomb Interaction on Noise in Quantum Well Infrared Photodetectors
Proc. of 16th Int. Conf. on Noise in Physical Systems and 1/f Fluctuations, Gainesville,
Florida, USA, Ed. Gijs Bosman, ISBN 981-02-4677-3 (2001)
A. Carbone and P. Mazzetti
Current Noise in Quantum Well Infrared Photodetectors: Effect of Electron Coulomb Interaction
Phil. Mag. B 80, 775 (2000)
A. Carbone and P. Mazzetti
Current Noise Suppression in Quantum Well Infrared Photodetectors at low bias voltages
24th Int. Workshop on Compound Semiconductor Devices and Integrated Circuits
May 29-June 02, Greece (2000)
A.Carbone and P.Mazzetti
Grain Boundary Effects on Photocurrent Fluctuations in Polycrystalline Photoconductors
Phys. Rev. B 57, 2454, (1998)
A.Carbone and P. Mazzetti
Excess Current Noise in Quantum Well Infrared Photodetectors
Proc. of 14th Int. Conf. on Noise in Physical Systems and 1/f Fluctuations, Leuven, Belgium,
C. Claeys & E.Simoen Eds., Word Scientific Publ., (1997)
A.Carbone and P.Mazzetti
Noise Gain in Single Quantum Well Infrared Photodetectors.
Appl. Phys. Lett. 70, 28 (1997)
A.Carbone and P.Mazzetti
Electronic properties of defect levels investigated by electronic noise in polycristalline cadmium compounds.
Solid State Phenomena 51-52, 105 (1996)
A.Carbone and P.Mazzetti
Current Noise Spectroscopy of Deep Energy Levels in Photoconductors
J.Appl.Phys. 80, 1559 (1996)
A.Carbone and P.Mazzetti
Analysis of Defects in Metals, Semiconductors and Photoconducting Insulators Through Current Noise Measurements
Def. Diffus. Forum 134-135, 25 (1996)
A.Carbone and P.Mazzetti
Temperature dependence of photoconductivity and noise in CdS based devices
Phys. Rev. B 51, 13261 (1995)
A.Carbone and P.Mazzetti
Current noise in barrier photoconducting devices (I. Theory)
Phys. Rev. B 49, 7592 (1994)
A.Carbone and P.Mazzetti
Current noise in barrier photoconducting devices (II. Experiment)
Phys. Rev. B 49, 7603 (1994)
A.Carbone and P. Mazzetti
Dependence of photoconduction noise on temperature: a check of a barrier type theory of photoconductivity in CdS based devices
AIP Conf. Proc. 285, 433 (1993)
A.Carbone and P.Mazzetti
Photoinduced space charge effect on current noise in photoconducting insulators
MRS Symp. Proc. 261, 161 (1992)
A.Carbone, P.P. Delsanto, G.Kaniadakis and P.Mazzetti
Random walk simulation of the motion of the transient charges in photoconductors
Proc. of the 4th Int. Conf. on Physics Computing, Eds. R.A. de Groot and J. Nadrehal, 291 (1992)
A.Carbone, F.Demichelis, G.Kaniadakis, F.Gozzo, R.Murri, N.Pinto, L.Schiavulli, G.Della Mea, A.Drigo and A.Paccagnella
Physical Properties of Hydrogenated Amorphous Gallium Arsenide
Il Nuovo Cimento 13D, 571 (1991)
A.Carbone, F.Demichelis and G.Kaniadakis.
Annealing temperature dependence of the optical properties of sputtered hydrogenated amorphous silicon carbide
J. Non-Cryst. Sol. 128, 139 (1991)
A.Carbone and P.Mazzetti
Conductivity, responsivity and noise in photoconductive devices: development and check of a novel theory.
Proc. of the 11th Int. Conf. of Noise in Phys. Systems and 1/f Noise, Eds. T.Musha, S.Sato and M.Yamamoto, 317 (1991)
A.Carbone, F.Demichelis, G.Kaniadakis, G.Della Mea, F.Freire and P.Rava
Physical properties of amorphous silicon-carbon alloys produced by different techniques
J. Mat. Res. 5, 2877 (1990)
A.Carbone, F.Demichelis and G.Kaniadakis
Optical Properties of hydrogenated amorphous and polycrystalline Silicon Carbide.
Proc. of the 5th Int. Photovoltaic Science and Engineering Conference, Ed. H. Matsunami, 841 (1990)
A.Carbone, F. Demichelis and P. Mazzetti
Determination of the energy gap in photoconducting insulators through current noise measurements.
MRS Symp. Proc. D.B. Poker and C.Ortiz Ed., 152, 163 (1989)
A.Carbone, F. Demichelis and P.Mazzetti
Experimental study of the current noise in CdS photoconducting devices as a function of the wavelength
and the intensity of the exciting radiation.
Proc. of the 10th Int. Conf. of Noise in Phys. System and 1/f Noise, Ed. A.Ambrozy, 285, (1989)
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