The group has been working on a range of activities connected with renewable energy systems and other applications, from the device level to the circuit and system levels, and from the standpoints of electrical, thermal, optical, and electro-magnetic simulation, thermal design, reliability and diagnostics.

Research topics:

  • Numerical simulation of wide-bandgap semiconductor (SiC, GaN, GaO) devices
  • 2D & 3D numerical simulation of thin-film solar cells
  • Characterization, modeling and reliability of advanced power devices
  • Thermal design of power devices and modules
  • Thermal management of power converters
  • Renewable energy conversion systems
  • Nanogrid and microgrid modeling



Recent Research Projects

  • 2022-2024: “Green e-Bus Charging”, PON, Ministero dell’Università e della Ricerca.
  • 2022-2023: “The City School”, progetto Alta Formazione, Regione Emilia-Romagna.
  • 2021-2023: “Thermo-fluid-dynamic simulations for the optimization of cold plates that can be manufactured with additive technology for the cooling of power electronic components”, research grant, POSEICO S.p.A (Genova, Italy).
  • 2022: “Model-based design for ACIS Gen 2”, research grant, Federal Mogul Powertrain Italy S.r.L. (Carpi, Italy).
  • 2021: “Servizio studio e progettazione di prototipo per nuova ingegnerizzazione del prodotto MCC (Motor Control Center) conforme alla normativa UL/CSA 845”, research grant, Techcab, SRL.
  • 2020-2022: “ICT per città intelligenti e sostenibili”, progetto Alte Competenze, Regione Emilia-Romagna.
  • 2020-2021: “Development of a simulation methodology to model the transient electrical and thermal behavior of power distribution networks in the automotive environment”, research grant, Infineon Technologies Austria AG (Villach, Austria).
  • 2019: “Thermal and fluid dynamics simulations for the design of liquid heat sinks with DMLS (Direct Metal Laser Sintering) additive technology”, research grant, POSEICO S.p.A (Genova, Italy).
  • 2015-2018: “Super high efficiency Cu(In, Ga)Se2 thin-film solar cells approaching 25% (SHARC25)”, H2020 grant agreement No. 641004 (

Selected publications

  1. G. Sozzi, S. Sapienza, R. Nipoti, G. Chiorboli, “OCVD Measurement of Ambipolar and Minority Carrier Lifetime in 4H-SiC Devices: Relevance of the Measurement Setup,” IEEE Transactions On Electron Devices, vol. 68, p. 3254-3260, ISSN: 0018-9383, doi: 10.1109/TED.2021.3083211 (2021).
  2. D. Santoro, I. Kortabarria, A. Toscani, C. Concari, P. Cova, N. Delmonte, “PV modules interfacing isolated triple active bridge for nanogrid applications”, Energies, vol. 14, n. 10, paper 2854, 2021. DOI: 10.3390/en14102854, Scopus: 2-s2.0-85106892476, WOS:000662368900001
  3. M. Simonazzi, N. Delmonte, P. Cova, G. Ferrari, F. Zanichelli, R. Menozzi, “Modeling of a university campus Micro-Grid for optimal planning of renewable generation and storage deployment”, proc. 2021 IEEE International Smart Cities Conference (ISC2), ISBN: 978-1-6654-4919-9, 978-1-6654-4920-5, ISSN: 2687-8860, 2687-8852, DOI: 10.1109/ISC253183.2021.9562796, Scopus: 2-s2.0-85118143759.
  4. S. Siebentritt, E. Avancini, M. Bär, J. Bombsch, E. Bourgeois, S. Buecheler, R. Carron, C. Castro, S. Dugay,R. Felix, E. Handick, D. Hariskos, V. Havu, P. Jackson, H.-P. Komsa, T. Kunze, M. Malitckaya, R. Menozzi, M. Nesladek, N. Nicoara, M. Puska, M. Raghwanshi, P. Pareige, S. Sadewasser, G. Sozzi, A. N. Tiwari, S. Ueda, A. Vilalta-Clemente, T. P. Weiss, F. Werner, R. G. Wilks, W. Witte, M. H. Wolter, “Heavy alkaly treatment of Cu(In,Ga)Se2 solar cells: surface versus bulk effects,” Advanced Energy Materials, vol. 10, ISSN: 1614-6832, doi: 10.1002/aenm.201903752, 2020.
  5. S. Sapienza, G. Sozzi, D. Santoro, P. Cova, N. Delmonte, G. Verrini, G. Chiorboli, “Correlation between OCVD carrier lifetime vs temperature measurements and reverse recovery behavior of the body diode of SiC power MOSFETs,” Microelectronics Reliability, vol. 113, ISSN: 0026-2714, doi: 10.1016/j.microrel.2020.113937 (2020).
  6. M. Simonazzi, G. Chiorboli, P. Cova, R. Menozzi, D. Santoro, S. Sapienza, C. Sciancalepore, G. Sozzi, N. Delmonte, “Smart Soiling Sensor for PV Modules”, Microelectronics Reliability, vol. 114, p. 113789, 2020. ISSN 0026-2714, DOI: 10.1016/j.microrel.2020.113789, Scopus: 2-s2.0-85096696484, WOS:000593893400016
  7. N. Delmonte, E. Robles, P. Cova, F. Giuliani, F.X. Fay, J. Lopez, P. Ruol, L. Martinelli, “An iterative refining approach to design the control of wave energy converters with numerical modeling and scaled HIL testing”, Energies, vol. 13, p. 2508, 2020. DOI: 10.3390/en13102508, Scopus: 2-s2.0-85086145696,  WOS:000539257300101
  8. N. Nicoara, R. Manaligod, P. Jackson, D. Hariskos, W. Witte, G. Sozzi, R. Menozzi, S. Sadewasser, “Direct evidence for grain boundary passivation in Cu(In,Ga)Se2 solar cells through alkali-fluoride post-deposition treatments,” Nature Communications 10, Article number: 3980 (2019), doi: 10.1038/s41467-019-11996-y.
  9. G. Sozzi, M. Puzzanghera, R. Menozzi, R. Nipoti, “The role of defects on forward current in 4H-SiC p-i-n diodes,” IEEE Trans. El. Dev., vol. 66, no. 7, July 2019, pp. 3028-3033. doi: 10.1109/TED.2019.2917534.
  10. P. Cova, N. Delmonte, M. Lazzaroni, “Photovoltaic plant maintainability optimization and degradation detection: modelling and characterization”, Microelectronics Reliability, vol. 88-90, pp. 1077-1082, 2018. DOI: 10.1016/j.microrel.2018.07.021, ISSN: 0026-2714, Scopus: 2-s2.0-85054859842, WOS:000448227000198
  11. E. Avancini, D. Keller, R. Carron, Y. Arroyo-Rojas Dasilva, R. Erni, A. Priebe, S. Di Napoli, M. Carrisi, G. Sozzi, R. Menozzi, F. Fu, S. Buecheler, A. N. Tiwari, “Voids and compositional inhomogeneities in Cu(In.Ga)Se2 thin films: evolution during growth and impact on solar cell performance,” Science and Technology of Advanced Materials, Vol. 19, No. 1, 2018, pp. 871-882. doi: 10.1080/14686996.2018.1536679.
  12. P. Cova, A. Toscani. C. Concari, G. Franceschini, M. Portesine,  “Comprehensive control system for parallelable 60Hz-2MW harbor AC/AC converters”, IEEE Transactions on Industrial Informatics, vol. 14, n. 6 pp. 2432-2441, 2018, DOI: 10.1109/TII.2017.2776155, print ISSN: 1551-3203, online ISSN: 1941-0050, Scopus: 2-s2.0-85035790261,  WOS:000434297100011
  13. F. Werner, M. H. Wolter, S. Siebentritt, G. Sozzi, S. Di Napoli, R. Menozzi, P. Jackson, W. Witte, R. Carron, E. Avancini, T. P. Weiss, S. Buecheler, “Alkali treatments of Cu(In,Ga)Se2  thin‐film absorbers and their impact on transport barriers,” Prog. Photovolt: Res. Appl. Vol. 26, 2018, pp. 911-923, doi: 10.1002/pip.3032.
  14. N. Delmonte, P. Cova, D. Santoro, A.Toscani, G. Buticchi, “Development of a GaN based Triple-Active-Bridge for DC nanogrid”, Proceedings 20th European Conference on Power Electronics and Applications, EPE'18 ECCE Europe, Riga, Latvia, Sep. 17-20, 2018, paper n. 464, pp. 1-9. Scopus: 2-s2.0-85057048654, WOS:000450299300258, ISBN: 978-907581528-3, 978-9-0758-1529-0, 978-1-5386-4145-3,
  15. R. Nipoti, M. Puzzanghera, G. Sozzi, R. Menozzi, “Perimeter and area components in the I-V curves of 4H-SiC vertical p+-i-n diode with Al+ ion-implanted emitter,” IEEE Trans. El. Dev., vol. 65, no. 2, Feb. 2018, pp. 629-635. doi: 10.1109/TED.2017.2779602.
  16. E. Avancini, R. Carron, B. Bissig, P. Reinhard, R. Menozzi, G. Sozzi, S. Di Napoli, T. Feurer, S. Nishiwaki, S. Buecheler, A. N. Tiwari, “Impact of compositional grading and overall Cu deficiency on the near-infrared response in Cu(In,Ga)Se2 solar cells,” Prog. Photovolt: Res.  Appl. Vol. 25, 2017, pp. 233-241. doi: 10.1002/pip.2850.
  17. G. Sozzi, S. Di Napoli, R. Menozzi, B. Bissig, S. Buecheler, A. N. Tiwari, “Impact of front-side point contact/passivation geometry on thin-fim solar cell performance,” Solar Energy Materials and Solar Cells, vol. 165, pp. 94-102, June 2017, DOI: 10.1016/j.solmat.2017.02.031.
  18. N. Delmonte, D. Barater, F. Giuliani, P. Cova, G. Buticchi, “Review of oscillating water column converters”,  IEEE Transactions on Industry Applications, vol. 52, n. 2, pp. 1698-1710, 2016. ISSN: 0093-9994, DOI: 10.1109/TIA.2015.2490629, Scopus: 2-s2.0-84944111657, WOS:000372986600062.
  19. P. Reinhard, B. Bissig, F. Pianezzi, H. Hagendorfer, G. Sozzi, R. Menozzi, C. Gretener, S. Nishiwaki, S. Buecheler, A. N. Tiwari, “Alkali-templated surface nanopatterning of chalcogenide thin films: A novel approach toward solar cells with enhanced efficiency,” Nano Letters, vol. 15, p. 3334-3340, 2015, ISSN: 1530-6984, doi: 10.1021/acs.nanolett.5b00584.
  20. G. Sozzi, F. Troni, R. Menozzi, “On the combined effects of window/buffer and buffer/absorber conduction-band offsets, buffer thickness and doping on thin-film solar cell performance,” Solar Energy Materials and Solar Cells, vol. 121, pp. 126-136, Feb. 2014, DOI: 10.1016/j.solmat.2013.10.037.
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