Principal aims
The laboratory activities are addressed to the spectroscopic and microscopic characterization of micro- and nano-structured materials for electronics, optoelectronics and sensing applications. Primary purpose is to correlate the structural properties of the materials with the growth conditions. This allows optimization of the synthesis processes, allowing to obtain materials with physical properties tailored to the particular application.
Research activities
The spectroscopic investigation is carried out through Raman spectroscopy, photoluminescence and UV-visible-NIR spectroscopy.
Other investigations are made through Atomic Force Microscopy and ellipsometry. Current-voltage (I-V) and voltage-capacitance (C-V) characterizations are made through a dedicated probe station.
Porous silicon, amorphous silicon, silicon carbide and carbon-based materials such as synthetic diamond, diamond-like amorphous carbon and carbon nanotubes were studied.
More recently, research has focused on graphene, a single sheet of carbon atoms arranged in a hexagonal pattern, which is enjoying great interest all over the world for its potential applications. Stronger than diamond, but lighter and more flexible, graphene is a transparent conductive material. Due to its planar geometry, it may be more compatible than other materials, including carbon nanotubes, with the conventional electronic devices.
By means of the micro-Raman spectrometer it is also possible to realize Raman maps, which allow to accurately monitor the spatial homogeneity of the samples (i. e. local distribution of defects, stress level, etc.). By using different laser sources (He-Ne, Ar ions and He-Cd), Raman analysis at different excitation wavelengths, from red to UV, can be carried out. The photoluminescence measurements can be performed from liquid nitrogen temperature (-196 ° C) up to 600 ° C.
Horizon 2020 topics
Future and Emerging Technologies (Nanotechnologies - Technologies with New Materials)
Leadership in Enabling and Industrial Technologies (Advanced Materials - Advanced Manufacturing and Processing)
ICT (New Generation of Components and Systems - Micro and Nano-Electronic Technologies and Photonics)
Smart Specialisation Strategy Calabria (S3 Calabria)
ICT e Terziario innovativo / ICT and Innovative Tertiary
Bioedilizia / Green Building
Ambiente e rischi naturali / Environment and natural risks
| Giacomo Messina |
Raman spectroscopy, Raman Imaging, Photoluminescence, Ellipsometry, Atomic Force Microscopy (AFM), Scanning Electron Microscopy and Transmission (SEM and TEM), X-ray diffraction (XRD), Catalyzed Chemical Vapor Deposition (CVD), CVD Diamond, Carbon Nanotubes, nanocomposites, Graphene, detectors, dosimeters |
PE4_3 - Spectroscopic and spectrometric techniques
PE5_10 - Nanomaterials : nanoparticles, nanotubes
PE5_9 - Materials for sensors |
| Giuliana Faggio |
Raman spectroscopy, Raman Imaging, Photoluminescence, Ellipsometry, Atomic Force Microscopy (AFM), Scanning Electron Microscopy and Transmission (SEM and TEM), X-ray diffraction (XRD), Catalyzed Chemical Vapor Deposition (CVD), CVD Diamond, Carbon Nanotubes, nanocomposites, Graphene, detectors, dosimeters |
PE4_3 - Spectroscopic and spectrometric techniques
PE5_10 - Nanomaterials : nanoparticles, nanotubes
PE5_9 - Materials for sensors |
