Michele Saba
University of Cagliari
SemiconductorPhysicsPolaritonPerovskite (structure)NanotechnologyNanocrystalExcitonAtomic physicsChemistryThin filmScatteringMaterials scienceCondensed matter physicsQuantum wellSpectroscopyBose–Einstein condensateOptoelectronicsLaserQuantum mechanicsPhotoluminescence
Publications 142
#1Lidia Romani (UNIPV: University of Pavia)H-Index: 4
#2Andrea Speltini (UNIPV: University of Pavia)H-Index: 27
Last. Paolo Quadrelli (UNIPV: University of Pavia)H-Index: 29
view all 12 authors...
#1Angelica Simbula (University of Cagliari)H-Index: 8
#2Riccardo Pau (University of Cagliari)H-Index: 3
Last. Giovanni Bongiovanni (University of Cagliari)H-Index: 35
view all 17 authors...
#1Alessio Filippetti (University of Cagliari)H-Index: 40
#2Simon Kahmann (UG: University of Groningen)H-Index: 17
Last. Maria Antonietta Loi (UG: University of Groningen)H-Index: 67
view all 7 authors...
Hybrid tin-iodide perovskites are investigated as potential lead-free replacement of the lead-iodide perovskites; however, the intrinsic operational limit of these systems has not been described in detail, so far. In this work we combine advanced ab initio calculations with XRD and absorption measurements to lay out the fundamentals of formamidinium (FASnI3) and methylammonium (MASnI3) tin iodide perovskites, in comparison with the lead-halide MAPbI3 prototype. Our theoretical analysis reveals t...
#1Angelica Simbula (University of Cagliari)H-Index: 8
#1Mariangela Oggianu (University of Cagliari)H-Index: 3
#2Cristiana Figus (University of Cagliari)H-Index: 10
Last. Francesco Quochi (University of Cagliari)H-Index: 30
view all 14 authors...
The potential of silicon-based fluorescent platforms for the detection of trace toxic metal ions was investigated in an aqueous environment. To this aim, silicon chips were first functionalized with amino groups, and fluorescein organic dyes, used as sensing molecules, were then covalently linked to the surface via formation of thiourea groups. The obtained hybrid heterostructures exhibited high sensitivity and selectivity towards copper(II), a limit of detection compatible with the recommended ...
#1Rosanna MastriaH-Index: 12
#2Anna Loiudice (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 12
Last. Aurora RizzoH-Index: 33
view all 15 authors...
Engineering physicochemical properties of two-dimensional transition metal dichalcogenide (2D-TMD) materials by surface manipulation is essential to enabling their practical and large-scale application. This is especially challenging for colloidal 2D-TMDs that are plagued by the unintentional formation of structural defects during the synthetic procedure. However, the available methods to manage surface states of 2D-TMDs in solution phase are still limited, hampering the production of high-quali...
Hybrid lead halides CH3NH3PbX3 (X = I, Br, and Cl) have emerged as a new class of semiconductors for low-cost optoelectronic devices with superior performance. Since their perovskite crystal structure may have lattice instabilities against polar distortions, they are also being considered as potential photo-ferroelectrics. However, so far, research on their ferroelectricity has yielded inconclusive results and the subject is far from being settled. Here, we investigate, using a combined experime...
#1Qingqian Wang (UG: University of Groningen)H-Index: 5
#2Shuyan Shao (UG: University of Groningen)H-Index: 25
Last. Maria Antonietta Loi (UG: University of Groningen)H-Index: 67
view all 10 authors...
Recent works demonstrate polyelectrolyte as hole transport layer (HTL) offers superior performance in Ruddlesden-Popper perovskite solar cells (RPPSCs) compared to PEDOT:PSS. The factors contributing to such improvement need to be systematically investigated. To achieve this, we investigate the effects of the two HTLs on the morphology, crystallinity and orientation of the RPP films as well as their effects on the charge extraction of the RPPSCs. PEDOT:PSS as HTL leads to RPP film of low crystal...
#1Sofia MasiH-Index: 17
#2Nicola Sestu (University of Cagliari)H-Index: 11
Last. Andrea Listorti (University of Bari)H-Index: 9
view all 13 authors...
Compositional engineering has been a strong tool to improve the quality of the perovskite materials, and in turn the reproducibility of the solar cells. However, the control over the active layer u...
#1Fang Liu (University of Cagliari)H-Index: 2
#2Daniela Marongiu (University of Cagliari)H-Index: 17
Last. Alessio Filippetti (University of Cagliari)H-Index: 40
view all 15 authors...
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