From 1984 to 1992 he developed a new class of semiconductor radiation detectors for X-rays and ionizing particles (SILICON DRIFT DETECTORS) and contributed to their use in large physics experiments (UA6 and CERES/NA45 at CERN (Switzerland)). He developed new transistors and charge reset systems to be integrated in the same chip of the detector to improve further the detector performance. This research has been the first successful attempt to produce on-chip electronics on high resistivity fully-depleted silicon substrates. Connected to this, he designed electronic circuits, analog and digital, for signal analysis and processing. From 1992 to 1997 he has been the italian coordinator of the international experiment CERES/NA45 at CERN within the INFN (National Institute of Nuclear Physics), then from 1998 to 2001 of the project RATEX, aiming to produce new X-ray detector systems with enhanced stability in high rate applications and from 2000 to 2002 of the project ODESSA aiming to the development of detectors based on organic semiconductors for visible and Infrared light.
He has been the local coordinator of various European projects:
SPOT-NOSED (2003-2005) aiming to the realization of a bionic nose based on
natural olfactory receptors;
NOSCE MEMORIAS (2006-2007) aiming to produce memory devices by using synthetic
pi-delocalized molecules;
EXCELL (2009-2011) aiming to explore interaction mechanisms between biological
materials and inorganic nano-structures, leading to an integrated biologically
inspired technological platform of high electronic sensitivity able to monitor
cell dynamics at nano-scale;
BOND (2010-2012) aiming to produce highly selective and sensitive detection
systems based on biological materials as detecting medium, thus mimicking
mechanisms that are already present in nature.
STREAMS (2015-2018) aiming to introduce in
Silicon Photonics systems a new class of light probes to monitor, track and
feedback control the working point of optical micro-integrated devices.
He is currently responsible for the activities in the field of high-sensitivity instrumentation for the nanoscience, aiming to investigate the electrical properties of organic semiconductor molecules and of biological materials. His group designs high performance electronic integrated instrumentation for the measurement of currents, voltages, impedances and noise to access the electronic properties of nano-bio sensors and of organic semiconductor devices. In this field, to address the electrical properties of biological materials with emphasis on single nanosome to explore high sensitive and selective bio-sensors, the group has reached zepto Farad capacitance sensitivity and sub fA current measurements on 1ms time scale. On-chip instrumentation is the goal of present activity, to better address the need of high performance electronic measurements and portability in the nano science, both for experiments at room temperature or at cryogenic temperatures.
The activity in the electronic device had been directed toward the design of organic photodetectors in the visible range and in the I.R. using donor/acceptor blends, typically of P3HT/PCBM, by means of drop-on-demand InkJet printing techniques. On these subjects he has been partner in three Cariplo projects successfully ending with the realisation of bottom contacts & bottom gate P3HT transistors (TESEO), of air-tight Al2O3 capping layers for organic devices (PROTEO) and of fast and stable near infrared organic detectors based on squaraine dyes (DANAE). The group, in a collaboration with IIT (Italian Institute of Technology), is now attempting to produce a large area X-ray matrix sensor on a plastic foil (project INDIXI) to be a bendable, lightweight and unbreakable image sensor for clinical and industrial applications.
He is co-author of more than 200 peer-reviewed international publications and holds 5 patents.
HOME | RESEARCH OVERVIEW | CONTACT ME |
Marco Sampietro at |
Politecnico di Milano
Dipartimento di Elettronica, Informazione e Bioingegneria Piazza L. da Vinci 32 20133 Milano, Italy |
Tel. (+39) 0223996188
Fax (+39) 022367604 Email: Marco.Sampietro@polimi.it |