Istituto Italiano di Tecnologia

About: Istituto Italiano di Tecnologia is a facility organization based out in Genoa, Italy. It is known for research contribution in the topics: Humanoid robot & Robot. The organization has 4561 authors who have published 14595 publications receiving 437558 citations. The organization is also known as: Italian Institute of Technology & IIT.

Electrochemical impedance spectroscopy: Fundamentals and application in dye-sensitized solar cells

Abstract: Dye-sensitized solar cells (DSCs) have emerged in the photovoltaic scenario as one of the most promising low-cost alternative to the most employed solar devices based on silicon, especially for some niche application. Despite of the huge work carried out by scientists and researchers, detailed mechanism of some of the charge transfer processes occurring inside DSCs is not still fully understood. Electrochemical impedance spectroscopy (EIS) gave an immense help in analyzing these processes, and has been widely employed in the DSCs to characterize novel materials and architectures. The scope of this Review is to provide an insight on the application of EIS for the study of DSCs. A general introduction of the technique will be given, followed by an in-depth review of its application in the DSC field. Finally, a brief discussion of future research directions concerning this topic will be presented.

Stark Effect in Perovskite/TiO2 Solar Cells: Evidence of Local Interfacial Order

Abstract: To unveil the mechanisms controlling photovoltaic conversion in high-performing perovskite-based mesostructured solar cells, we focus on the key role played by the mesoporous oxide/perovskite interface. We employ several spectroscopic techniques to design a complete scenario and corroborate our results with first principle density functional theory calculations. In particular Stark spectroscopy, a powerful tool allowing interface-sensitive analysis is employed to prove the existence of oriented permanent dipoles, consistent with the hypothesis of an ordered perovskite layer, close to the oxide surface. The existence of a structural order, promoted by specific local interactions, could be one of the decisive reasons for highly efficient carriers transport within perovskite films.

Re-identification with RGB-D sensors

Abstract: People re-identification is a fundamental operation for any multi-camera surveillance scenario. Until now, it has been performed by exploiting primarily appearance cues, hypothesizing that the individuals cannot change their clothes. In this paper, we relax this constraint by presenting a set of 3D soft-biometric cues, being insensitive to appearance variations, that are gathered using RGB-D technology. The joint use of these characteristics provides encouraging performances on a benchmark of 79 people, that have been captured in different days and with different clothing. This promotes a novel research direction for the re-identification community, supported also by the fact that a new brand of affordable RGB-D cameras have recently invaded the worldwide market.