6 results on '"Isceri, S."'
Search Results
2. Geometry of tellurene adsorbed on the Si(111)-(root 3 x root 3)R30 degrees-Sb surface from first principles calculations
- Author
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Isceri, S, Dragoni, D, Campi, D, Cecchi, S, Bernasconi, M, Isceri, S, Dragoni, D, Campi, D, Cecchi, S, and Bernasconi, M
- Subjects
Surface physics, tellurene, density functional theory, adsorption ,FIS/03 - FISICA DELLA MATERIA - Abstract
The 2D form of tellurium, named tellurene, is one of the latest discoveries in the family of 2D mono-elemental materials. In a trilayer configuration, free-standing tellurene was predicted theoretically to acquire two crystallographic forms, the α and β phases, corresponding to either a 1T-MoS2-like geometry or a trilayer slab exposing the Te(101̄0) surface of bulk Te with helical chains lying in-plane and further reconstructed due to the formation of interchain bonds. Either one or the other of the two phases was observed experimentally to prevail depending on the substrate they were grown onto. In the perspective to integrate tellurene on silicon, we here report an ab initio study of the adsorption of tellurene on the Si(111)-R30° surface passivated by antinomy. According to the literature, this substrate is chosen for the growth of several tellurides by molecular beam epitaxy. The calculations reveal that on this substrate the adsorption energy mostly compensates the energy difference between the α and β phases in the free-standing configuration which suggests that the prevalence of one phase over the other might in this case strongly depend on the kinetics effects and deposition conditions.
- Published
- 2022
3. Carotid artery stenting during endovascular thrombectomy for acute ischemic stroke with tandem occlusion: the Italian Registry of Endovascular Treatment in Acute Stroke
- Author
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Sallustio, Fabrizio, Pracucci, Giovanni, Cappellari, Manuel, Saia, Valentina, Mascolo, Alfredo Paolo, Marrama, Federico, Gandini, Roberto, Koch, Giacomo, Diomedi, Marina, D’Agostino, Federica, Rocco, Alessandro, Da Ros, Valerio, Wlderk, Andrea, Nezzo, Marco, Argirò, Renato, Morosetti, Daniele, Renieri, Leonardo, Nencini, Patrizia, Vallone, Stefano, Zini, Andrea, Bigliardi, Guido, Pitrone, Antonio, Grillo, Francesco, Bracco, Sandra, Tassi, Rossana, Bergui, Mauro, Naldi, Andrea, Carità, Giuseppe, Casetta, Ilaria, Gasparotti, Roberto, Magoni, Mauro, Simonetti, Luigi, Haznedari, Nicolò, Paolucci, Matteo, Mavilio, Nicola, Malfatto, Laura, Menozzi, Roberto, Genovese, Antonio, Cosottini, Mirco, Orlandi, Giovanni, Comai, Alessio, Franchini, Enrica, Pedicelli, Alessandro, Frisullo, Giovanni, Puglielli, Edoardo, Casalena, Alfonsina, Cester, Giacomo, Baracchini, Claudio, Castellano, Davide, Di Liberto, Alessandra, Ricciardi, Giuseppe Kenneth, Chiumarulo, Luigi, Petruzzellis, Marco, Lafe, Elvis, Persico, Alessandra, Cavasin, Nicola, Critelli, Adriana, Semeraro, Vittorio, Tinelli, Angelica, Giorgianni, Andrea, Carimati, Federico, Auteri, William, Rizzuto, Stefano, Biraschi, Francesco, Nicolini, Ettore, Ferrari, Antonio, Melis, Maurizio, Calia, Stefano, Tassinari, Tiziana, Nuzzi, Nunzio Paolo, Corato, Manuel, Sacco, Simona, Squassina, Guido, Invernizzi, Paolo, Gallesio, Ivan, Ruiz, Luigi, Dui, Giovanni, Carboni, Nicola, Amistà, Pietro, Russo, Monia, Maiore, Mario, Zanda, Bastianina, Craparo, Giuseppe, Mannino, Marina, Inzitari, Domenico, Toni, Danilo, Mangiafico, Salvatore, Gasparotti, R., Inzitari, D., Mangiafico, S., Toni, D., Vallone, S., Zini, A., Bergui, M., Causin, F., Ciccone, A., Nencini, P., Saletti, A., Sallustio, F., Tassi, R., Thyrion, F. Zappoli, Pracucci, G., Saia, V., Gandini, R., Da Ros, V., Greco, L., Morosetti, D., Diomedi, M., Nappini, S., Limbucci, N., Renieri, L., Fainardi, E., Verganti, L., Sacchetti, F., Zelent, G., Bigliardi, G., Dell’Acqua, M. L., Picchetto, L., Vandelli, L., Pentore, R., Maffei, S., Nichelli, P., Longo, M., Pitrone, A., Vinci, S. L., Velo, M., Caragliano, A., Tessitore, A., Bonomo, O., Musolino, R., La Spina, P., Casella, C., Fazio, M. C., Grillo, F., Cotroneo, M., Dell’Aera, C., Francalanza, I., Bracco, S., Cioni, S., Gennari, P., Vallone, I. M., Cerase, A., Martini, G., Stura, G., Daniele, D., Cerrato, P., Naldi, A., Onofrio, M., De Vito, A., Azzini, C., Casetta, I., Mardighian, D., Frigerio, M., Magoni, M., Costa, A., Simonetti, L., Cirillo, L., Taglialatela, F., Isceri, S., Princiotta, C., Dall’Olio, M., Cellerini, M., Gentile, M., Piccolo, L., Migliaccio, L., Brancaleoni, L., Naldi, F., Romoli, M., Zaniboni, A., Ruggiero, M., Sanna, A., Haznedari, N., Commodaro, C., Longoni, M., Biguzzi, S., Cordici, F., Malatesta, E., Castellan, L., Mavilio, N., Salsano, G., Malfatto, L., Finocchi, C., Menozzi, R., Piazza, P., Epifani, E., Andreone, A., Scoditti, U., Castellini, P., Latte, L., Grisendi, I., Cosottini, M., Puglioli, M., Lazzarotti, G., Lauretti, D., Mancuso, M., Giannini, N., Maccarone, M., Orlandi, G., Comai, A., Bonatti, G., Nano, G., Ferro, F., Bonatti, M., Dall’Ora, E., Dossi, R. Currò, Turri, E., Turri, M., Colosimo, C., Pedicelli, A., D’Argento, F., Alexandre, A., Frisullo, G., Di Egidio, V., Puglielli, E. G., Ruggero, L., Assetta, M., Casalena, A., Cester, G., Baracchini, C., Viaro, F., Pieroni, A., Vaudano, G., Comelli, C., Di Maggio, L., Castellano, D., Cavallo, R., Duc, E., Chianale, G., Ciceri, E. F. M., Plebani, M., Augelli, R., Zampieri, P., Grazioli, A., Cappellari, M., Forlivesi, S., Tomelleri, G., Micheletti, N., Chiumarulo, L., Zimatore, D. S., Federico, F., Petruzzelli, M., Zappoli, F., Lafe, E., Sanfilippo, G., Sgreccia, A., Martignoni, A., Cavallini, A., Denaro, F., Persico, A., Cagliari, E., Cavasin, N., Quatrale, R., Critelli, A., Burdi, N., Semeraro, V., Lucarelli, N., Ganimede, M. P., Internò, S., Tinelli, A., Prontera, M. P., Pesare, A., Cotroneo, E., Pampana, E., Ricciardi, F., Gigli, R., Pezzella, F. R., Corsi, F., Giorgianni, A., Baruzzi, F., Pellegrino, C., Terrana, A., Versino, M., Delodovici, M. L., Carimati, F., Cariddi, L. Princiotta, Auteri, W., Di Benedetto, O., Silvagni, U., Perrotta, P., Crispino, E., Petrone, A., Stancati, F., Rizzuto, S., Pugliese, P., Pisani, E., Siniscalchi, A., Gaudiano, C., Pirritano, D., Del Giudice, F., Piano, M., Agostoni, E., Motto, C., Gatti, A., Guccione, A., Tortorella, R., Stecco, A., Guzzardi, G., Del Sette, B., Coppo, L., Baldan, J., Romano, D., Siani, A., Locatelli, G., Saponiero, R., Napolitano, R., De Gregorio, M., Volpe, G., Tenuta, M., Guidetti, G., Biraschi, F., Wulbek, A., Falcou, A., Anzini, A., Mancini, A., De Michele, M., Fausti, S., Di Mascio, M. T., Durastanti, L., Sbardella, E., Mellina, V., Nicolini, E., Comelli, S., Ganau, C., Corraine, S., Fusaro, F., Ferrari, A., Schirru, F., Ledda, V., Secci, S., Melis, M., Piras, V., Moller, J., Padolecchia, R., Allegretti, L., Caldiera, V., Calia, S., Ganci, G., Tassinari, T., Sugo, A., De Nicola, M., Giannoni, M., Bruni, S., Gambelli, E., Provinciali, L., Nuzzi, N. P., Marcheselli, S., Corato, M., Scomazzoni, F., Simionato, F., Roveri, L., Filauri, P., Sacco, S., Orlandi, B., De Santis, F., Tiseo, C., Notturno, F., Ornello, R., Pavia, M., Squassina, G., Cobelli, M., Morassi, M., Magni, E., Invernizzi, P., Pepe, F., Bigni, B., Costa, P., Crabbio, M., Griffini, S., Palmerini, F., Piras, M. P., Gallesio, I., Barbero, S., Ferrandi, D., Dui, G., Fancello, M. C., Zedda, S., Ticca, A., Saddi, M. V., Deiana, G., Rossi, R., Carboni, N., Mela, A., Amistà, P., Russo, M., Iannucci, G., Pinna, V., Di Clemente, L., Santi, M., De Boni, A., De Luca, C., Natrella, M., Fanelli, G., Cristoferi, M., Bottacchi, E., Corso, G., Tosi, P., Sessa, M., Giossi, A., Baietti, Null, Romano, G., Meineri, P., Armentano, A., Versace, P., Arcudi, L., Galvano, G., Petralia, B., Feraco, P., Luppi, G., Giometto, B., Bignamini, V., Piffer, S., Meloni, G. B., Fabio, C., Maiore, M., Pintus, F., Pischedda, A., Manca, A., Mongili, C., Zanda, B., Baule, A., Florio, F., Ciccarese, G., Leone, M., Di Viesti, P., Pappalardo, M. P., Craparo, G., Gallo, C., Monaco, S., Mannino, M., Muto, M., Guarnieri, Gl., Andreone, V., Passalacqua, G., Allegritti, M., Caproni, S., Filizzolo, M., Salmaggi, A., Giordano, A., Marini, C., Frattale, I., Lucente, G., Nozzoli, C., and Lupo, F. A.
- Subjects
Stent ,Acute stroke ,Settore MED/37 - Neuroradiologia ,Acute stroke Internal carotid artery diseases Stent Thrombectomy ,Neurology (clinical) ,General Medicine ,Settore MED/26 ,Internal carotid artery diseases ,Thrombectomy - Abstract
The management of tandem extracranial internal carotid artery and intracranial large vessel occlusion during endovascular thrombectomy (EVT) for acute ischemic stroke (AIS) has been under-investigated. We sought to investigate outcomes of AIS patients with tandem occlusion (TO) treated with carotid artery stenting (CAS) compared to those not treated with CAS (no-CAS) during EVT.We performed a cohort study using data from AIS patients enrolled in the Italian Registry of Endovascular Treatment in Acute Stroke. Outcomes were 3 months' mortality, functional outcome, complete and successful recanalization, any intracranial hemorrhage, parenchymal hematoma and symptomatic intracerebral hemorrhage.Among 466 AIS patients with TO, CAS patients were 122 and no-CAS patients were 226 (118 excluded). After adjustment for unbalanced variables, CAS was associated with a lower rate of 3 months' mortality (OR 0.407, 95% CI 0.171-0.969, p = 0.042). After adjustment for pre-defined variables, CAS was associated with a lower rate of 3 months' mortality (aOR 0.430, 95% CI 0.187-0.989, p = 0.047) and a higher rate of complete recanalization (aOR 1.986, 95% CI 1.121-3.518, p = 0.019), successful recanalization (aOR 2.433, 95% CI 1.263-4.686, p = 0.008) and parenchymal hematoma (aOR 2.876, 95% CI 1.173-7.050, p = 0.021). CAS was associated with lower 3 months mortality (OR 0.373, 95% CI 0.141-0.982, p = 0.046) and higher rates of successful recanalization (OR 2.082, 95% CI 1.099-3.942, p = 0.024) after adjustment for variables associated with 3 months' mortality and successful recanalization, respectively.Among AIS patients with TO, CAS during EVT was associated with a higher rate of successful reperfusion and a lower rate of 3 months' mortality.
- Published
- 2022
4. Anomalous Temperature Effect in Weakly Coupled Superlattices: Carrier Transport in a THz Quantum Cascade Laser.
- Author
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Giparakis M, Kainz MA, Ertl MC, Limbacher B, Jaidl M, Beiser M, Isceri S, Detz H, Schrenk W, Schwarz B, Strasser G, Bastard G, Unterrainer K, and Andrews AM
- Abstract
We present an investigation into the vertical transport through 13 different superlattice structures, where the well and barrier widths, doping concentration, dopant position, and contact layers were varied. Although superlattices have been extensively studied since 1970, there is a lack of publications on transport through superlattices similarly low doped as THz quantum cascade lasers (QCLs), for which the doping is in the 3-5×10^{10} cm^{-2} range. The superlattices presented are doped in the same range as THz QCLs, with contact layers and fabrication comparable to high-temperature THz QCLs. The temperature-dependent current-voltage characteristics were measured starting from 5 K and an anomalous temperature effect was observed at the first plateau. The measured current through the superlattice first decreases before increasing again with increasing temperature, resulting in the lowest current occurring at 75-110 K. This behavior is also observed in some THz QCLs. The effect disappears for thinner barriers, higher quantum well doping, or modified contact layers, indicating a strong dependency on band bending, due to the large difference in the doping of the contact layers and the superlattice, which is confirmed with multiscattering Büttiker simulations.
- Published
- 2024
- Full Text
- View/download PDF
5. Design and performance of GaSb-based quantum cascade detectors.
- Author
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Giparakis M, Windischhofer A, Isceri S, Schrenk W, Schwarz B, Strasser G, and Andrews AM
- Abstract
InAs/AlSb quantum cascade detectors (QCDs) grown strain-balanced on GaSb substrates are presented. This material system offers intrinsic performance-improving properties, like a low effective electron mass of the well material of 0.026 m
0 , enhancing the optical transition strength, and a high conduction band offset of 2.28 eV, reducing the noise and allowing for high optical transition energies. InAs and AlSb strain balance each other on GaSb with an InAs:AlSb ratio of 0.96:1. To regain the freedom of a lattice-matched material system regarding the optimization of a QCD design, submonolayer InSb layers are introduced. With strain engineering, four different active regions between 3.65 and 5.5 µm were designed with InAs:AlSb thickness ratios of up to 2.8:1, and subsequently grown and characterized. This includes an optimized QCD design at 4.3 µm, with a room-temperature peak responsivity of 26.12 mA/W and a detectivity of 1.41 × 108 Jones. Additionally, all QCD designs exhibit higher-energy interband signals in the mid- to near-infrared, stemming from the InAs/AlSb type-II alignment and the narrow InAs band gap., Competing Interests: Conflict of interest: Authors state no conflicts of interest., (© 2024 the author(s), published by De Gruyter, Berlin/Boston.)- Published
- 2024
- Full Text
- View/download PDF
6. Geometry of tellurene adsorbed on the Si(111)- R 30°-Sb surface from first principles calculations.
- Author
-
Isceri S, Dragoni D, Campi D, Cecchi S, and Bernasconi M
- Abstract
The 2D form of tellurium, named tellurene, is one of the latest discoveries in the family of 2D mono-elemental materials. In a trilayer configuration, free-standing tellurene was predicted theoretically to acquire two crystallographic forms, the α and β phases, corresponding to either a 1T-MoS
2 -like geometry or a trilayer slab exposing the Te(101̄0) surface of bulk Te with helical chains lying in-plane and further reconstructed due to the formation of interchain bonds. Either one or the other of the two phases was observed experimentally to prevail depending on the substrate they were grown onto. In the perspective to integrate tellurene on silicon, we here report an ab initio study of the adsorption of tellurene on the Si(111)- R 30° surface passivated by antinomy. According to the literature, this substrate is chosen for the growth of several tellurides by molecular beam epitaxy. The calculations reveal that on this substrate the adsorption energy mostly compensates the energy difference between the α and β phases in the free-standing configuration which suggests that the prevalence of one phase over the other might in this case strongly depend on the kinetics effects and deposition conditions.- Published
- 2022
- Full Text
- View/download PDF
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