Ph.D. candidate in Ingegneria Elettrica, Elettronica E Delle Comunicazioni , 39th cycle (2023-2026)
Department of Electronics and Telecommunications (DET)
Profile
PhD
Research topic
UltraViolet Light Emitting DIodes (UV-LED)
Tutors
Research interests
Biography
Research
Other activities and projects related to research
I deal with multi-physics simulations of semiconductor-based opto-electronic devices using in-house TCAD (technology computer aided design) tools developed by our research group. Specifically, I deal with a specific type of LED, operating in the UVC band (Ultraviolet C Light Emitting Diodes), useful in many applications ranging from sterilization to biosensing. This type of devices can integrate a tunnel junction to deal with technological problem involving p-dopants for nitride-based semiconductors. In this view, to properly simulate such devices, it is required to analyse them from the quantum transport standpoint (non-equilibrium Green's function approach for electrons and holes, coupled together) and to the semiclassical electronic transport standpoint (drift-diffusion). The aim of this project is to obtain a combined description of the device that can approximate as much as possible the real behaviour of real UVC-LEDs in terms of IV characteristic.
Publications
Latest publications View all publications in Porto@Iris
- Torrelli, V.; Miri, L.; D'Alessandro, Martino; Gullino, Alberto.; de Gennaro, R.; ... (2024)
Understanding polarization with gratings tilted to crystal axes: towards circularly-polarized VCSELs. In: 2024 IEEE Photonics Conference (IPC), Roma, 10-14 Novembre 2024. ISBN: 979-8-3503-6195-7
Contributo in Atti di Convegno (Proceeding) - Alasio, Matteo; Torrelli, V.; Albano, Simone.; Miri, L.; Gullino, Alberto; Goano, M.; ... (2024)
Modeling self-heating in high-power non-circular VCSELs. In: 2024 IEEE Photonics Conference (IPC), Roma (Ita), 10-14 November 2024
Contributo in Atti di Convegno (Proceeding) - Torrelli, Valerio; D’Alessandro, Martino; Miri, Lorenzo; Debernardi, Pierluigi; ... (2023)
Analytical model of the Ultrabroadband Operation of Transverse-Coupled-Cavity VCSELs. In: 23rd International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD 2023), Turin, Italy, 18 - 21 September 2023, pp. 87-88. ISBN: 979-8-3503-1429-8
Contributo in Atti di Convegno (Proceeding)