A5024033958- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Electromagnetic Simulation and Numerical Methods
- Electromagnetic Compatibility and Noise Suppression
- Advanced MEMS and NEMS Technologies
- Photonic and Optical Devices
- Perovskite Materials and Applications
- Antenna Design and Analysis
- Acoustic Wave Resonator Technologies
- Radio Frequency Integrated Circuit Design
- Conducting polymers and applications
- Gyrotron and Vacuum Electronics Research
- Microwave and Dielectric Measurement Techniques
- Quantum Dots Synthesis And Properties
- Semiconductor Lasers and Optical Devices
- Electromagnetic Scattering and Analysis
- Organic Electronics and Photovoltaics
- Antenna Design and Optimization
- Mechanical and Optical Resonators
- Chalcogenide Semiconductor Thin Films
- 2D Materials and Applications
- Superconducting and THz Device Technology
- Induction Heating and Inverter Technology
- Luminescence Properties of Advanced Materials
- Advanced Photonic Communication Systems
Center for Nano Science and Technology
2016-2023
Italian Institute of Technology
2016-2023
Istituto di Scienze e Tecnologie Chimiche "Giulio Natta"
2021-2022
Mylan (Switzerland)
2018-2021
Milano University Press
2020-2021
National Research Council
2021
Politecnico di Milano
2017-2020
Institute for Macromolecular Studies
2019-2020
Leonardo (United Kingdom)
2020
Mylan (South Africa)
2020
A hygroscopic polymer thin film successfully encapsulates an organic–inorganic halide perovskite layer, showing enhanced stability of the solar cell operating in a humid atmosphere.
The interlayer materials used in non-fullerene based solar cells are reviewed and the peculiar mechanisms operating these systems discussed.
Abstract The demand for high‐energy radiation detection systems combining high sensitivity, low‐cost and large‐area fabrication has pushed the research on hybrid perovskites as promising materials X‐ γ‐photon detection, thanks to their Z atoms, solution‐processability, optoelectronic performance. Here, flexible direct X‐ray detectors are demonstrated with outstanding real‐time properties. They based printed micrometers‐thick films of methylammonium lead triiodide nanocrystals inks,...
A computational scheme is proposed that can be applied to the analysis of cascaded waveguide discontinuities alternating boundary-enlargement and boundary-reduction type. Based on mode-matching technique, procedure makes use admittance matrix characterization stubs. With respect conventional S-matrix formulation, it leads a notable reduction effort, particularly for lossless structures. At same time, criterion avoiding relative convergence problems satisfied. The has been used set up very...
An innovative class of very compact and selective waveguide dual-mode filters is presented in this paper. The basic structure the TM cavity. Such a cavity employs both resonant nonresonating modes so as to provide two reflection transmission zeros. high design flexibility terms zero positioning response bandwidth has been demonstrated by means several single designs. <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">N</i> th-order multiple with...
A new cavity arrangement, namely, the generalized TM dual-mode cavity, is presented in this paper. In contrast with previous contributions on filters, allows realization of both symmetric and asymmetric filtering functions, simultaneously exploiting maximum number finite frequency transmission zeros. The high design flexibility terms position zeros obtained by exciting a set nonresonating modes. Five structure parameters are used to fully control its equivalent transversal topology....
Emphasis was recently placed on the Cs2AgBiBr6 double perovskite as a possible candidate to substitute toxic lead in metal halide perovskites. However, its poor light-emissive features currently make it unsuitable for solid-state lighting. Lanthanide doping is an established strategy implement luminescence poorly emissive materials, with additional advantage of fine-tuning emission wavelength. We discuss here impact Eu and Yb optical properties thin films, obtained from solution processing...
A three-dimensional (3-D) implementation of the lumped-element finite-difference time-domain (FDTD) algorithm has been carried out. To accomplish proper description device dynamic responses, code incorporates accurate models lumped bipolar devices, including nonlinear capacitances associated with pn and Schottky junctions. The system arising from discretized equations is solved by means an iterative Newton-Raphson algorithm, convergence properties which are sensitive to value simulation time...
A method of analysis is proposed for characterizing finline discontinuities. Two conducting or magnetic planes are inserted at some distances away from the discontinuity so as to obtain a closed resonant structure. transverse resonance technique then used compute frequencies and, these, equivalent circuit parameters discontinuity. In particular case when removed, can be characterize uniform finlines.
Radial-line stubs have been found to work better than low-impedance rectangular when an accurate localization of a zero-point impedance is needed. In this paper, microstrip radial-line are analyzed using planar circuit technique and characterized for design purposes. Experiments performed on various structures in excellent agreement with the theory confirm suitability such structure as altenative conventional straight stub.
Using a full-wave mode-matching technique, an extensive analysis is presented of the slow-wave factor, attenuation, and characteristic impedance metal-insulator semiconductor coplanar waveguide (MISCPW) as functions various structural parameters. Design criteria are given for low-attenuation propagation. By proper optimization structure, performances comparable with or even better than those alternative structures proposed in literature theoretically predicted.
A new class of inline pseudoelliptic waveguide filters is presented in this paper. The proposed structure based on a novel resonator, namely, the dual-post consisting pair antipodal partial-height posts. odd and even symmetry modes resonator are exploited as resonant mode nonresonating mode, respectively. generates direct input-to-output coupling, thus providing transmission zero that can be located either below or above pole mode. coupling between source (or load), well controlled by...
Fully solution-processed direct perovskite solar cells with a planar junction are realized by incorporating cross-linked [6,6]-phenyl-C61-butyric styryl dendron ester layer as an electron extracting layer. Power conversion efficiencies close to 19% and open-circuit voltage exceeding 1.1 V negligible hysteresis delivered. A film superb optoelectronic qualities is grown, which reduces carrier recombination losses hence increases oc. As service our authors readers, this journal provides...
To reduce the complexity and cost of future telecommunication systems, electrically tunable or reconfigurable filters based on radio frequency microelectromechanical systems (RF MEMS) waveguide technology constitute a very promising solution, since they allow for high Q good tunability. Three concepts using ohmic RF MEMS switches are described in this paper, compared terms performance manufacturing complexity. Quality factors order 1000 tunability 5% shown both by High-Frequency Structure...
The development of novel hole transporting materials (HTMs) for perovskite solar cells (PSCs) that can enhance device's reproducibility is a largely pursued goal, even to the detriment very high efficiency, since it paves way an effective industrialization this technology. In work, we study covalent functionalization reduced graphene oxide (RGO) flakes with different organic functional groups aim increasing stability and homogeneity their dispersion within poly(3‐hexylthiophene) (P3HT) HTM....
Abstract Commercialization of lead halide perovskite-based devices is hindered by their instability towards environmental conditions. In particular, water promotes fast decomposition, leading to a drastic decrease in device performance. Integrating water-splitting active species within ancillary layers the perovskite absorber might be solution this, as they could convert incoming into oxygen and hydrogen, preserving Here, we suggest that CuSCN nanoplatelete/p-type semiconducting polymer...
A method of analysis planar microwave structures, based on a field expansion in term resonant modes, is presented. first advantage the consists possibility taking into account fringe effects by introducing, for each mode, an equivalent model structure. Moreover, electromagnetic interpretation filtering properties two-port networks, particularly transmission zeros, whose nature has been subject several discussions, easily obtained. The existence two types modal and interaction zeros pointed...