A5020788517- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Advanced Sensor and Energy Harvesting Materials
- Thin-Film Transistor Technologies
- Nanomaterials and Printing Technologies
- Silicon and Solar Cell Technologies
- Biosensors and Analytical Detection
- Carbon Nanotubes in Composites
- Chalcogenide Semiconductor Thin Films
- Photovoltaic System Optimization Techniques
- Microfluidic and Capillary Electrophoresis Applications
- Quantum Dots Synthesis And Properties
- Mechanical and Optical Resonators
- Photovoltaic Systems and Sustainability
- Nonlinear Optical Materials Studies
- Electrowetting and Microfluidic Technologies
- Conducting polymers and applications
- Laser-Ablation Synthesis of Nanoparticles
- Semiconductor materials and interfaces
- Copper-based nanomaterials and applications
- RFID technology advancements
- Antenna Design and Analysis
- Neuroscience and Neural Engineering
- solar cell performance optimization
Free University of Bozen-Bolzano
2021-2024
Siemens (United States)
2002
Abstract The dissemination of sensors is key to realizing a sustainable, ‘intelligent’ world, where everyday objects and environments are equipped with sensing capabilities advance the sustainability quality our lives—e.g. via smart homes, cities, healthcare, logistics, Industry 4.0, precision agriculture. realization full potential these applications critically depends on availability easy-to-make, low-cost sensor technologies. Sensors based printable electronic materials offer ideal...
Abstract In vitro simulators of the human gastrointestinal (GI) tract are remarkable technological platforms for studying impact food on gut microbiota, enabling continuous and real-time monitoring key biomarkers. However, comprehensive gaseous biomarkers in these systems is required with a cost-effective approach, which has been challenging to perform experimentally date. this work, we demonstrate integration in-line use carbon nanotube (CNT)-based chemiresitive gas sensors coated thin...
The research interest towards wearable sensing devices has rapidly increased in recent years, due to the importance that personalized healthcare monitoring gained our everyday life. In this context, electrolyte-gated field-effect transistors (EG-FETs) for applications are receiving increasing attention, owing their intrinsic signal amplification and low operating voltages. Here, we report carbon nanotube EG-FETs (EG-CNTFET)-based sensors, functionalized with a nonactin-based ion-selective...
Abstract Even though a plethora of printing technologies are currently available and their potential for the fabrication low-cost flexible sensors has been widely investigated, systematically based, statistically sustained comparative studies missing in literature. In this work, we compare screen, inkjet, dispense carbon nanotube (CNT)-based ammonia (NH 3 ) chemiresistive gas first time. Moreover, report CNT-based sensor fabricated via Voltera printer. The devices were made thin layer...
Carbon nanotube (CNT)-based chemiresistive gas sensors are known to not fully recover the baseline after exposure. This is why often heat applied thermally activate sensor and improve desorption process occurring at surface. In this letter, we combine single-walled CNTs (SWCNTs) with conjugated polymers (CPs), i.e., Poly(3-hexylthiophene)(P3HT), realize improved recovery. Five configurations were fabricated diverse positions of sensing material layers respect interdigitated electrodes...
Electrolyte-gated field-effect transistors (EG-FETs) are widely used in the growing field of biochemical sensing applications, due to their manifold advantages, such as large specific capacitance, low operating voltage, and intrinsic signal amplification. In this work, carbon nanotube EG-FET (EG-CNTFET)-based sensors for ammonium (NH <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">+</sup> <sub xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> )...
Printing technologies have emerged as a viable method for the fabrication of various electronic components, including sensors, actuators, energy harvesters, thin‐film transistors and circuits, well antennas. However, printing processes limitations in terms surface roughness thickness. conductive structures on novel substrates, such cellulose‐based sustainable paper, also leads to further challenges linked high porosity ink carrier absorption. Herein, variability paper‐based printed antenna...
In this work, we demonstrate the advantages and potentials of dispense printing (V-One, Voltera) for realization conductive contacts flexible electronics. Printing parameters were optimized Ag inks on different substrates (PCB, Si/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> polyimide), leading to straight homogeneous printed lines with minimum feature size 159±22μm. Hybrid-manufactured Ag/InGaZnO Schottky diodes, an average...
In this work, gas sensors using laser-reduced graphene oxide (LrGO) as sensitive layer have been fabricated and studied. The laser-synthetized material were structurally electrically characterized by means of Scanning Electron Microscopy (SEM), Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS) the four-point contact method. gas-sensing properties samples studied their exposition to 10 ppm 100 ethanol 25 130 ammonia. results show that devices present an electrical response...
Abstract In-vitro simulators of the human gastrointestinal (GI) tract are remarkable technological platforms for studying impact food on gut microbiota, enabling continuous and real-time monitoring key biomarkers. In these systems, comprehensive gaseous biomarkers is required with a cost-effective approach, which has been challenging to perform experimentally date. this work, we demonstrate integration in-line use carbon nanotube (CNT)-based chemiresitive gas sensors coated thin...
Recent advances in processing large-area modules using thin-film Si:H (TFS) alloys have yielded an 8.4% aperture area efficiency and 33.2 W on a unlaminated unframed 0.4 m/sup 2/ module. Film uniformity shunting are major impediments to the manufacture of large TFS modules. Large-area more sensitive than small laboratory devices debris contamination that cause shunting. Several sources shunts been identified controlled. These include substrate contamination, laser patterning debris, airborne...
Ammonia (NH <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> ) is potentially a hazardous gas that can be threat to both human health and the environment. This why, sensitive, fast, low-cost, accurate sensing techniques for ammonia detection are extremely needed, especially if on soft substrates Nowadays, wide range of sensors based single-walled carbon nanotubes (SWCNTs) has been reported. Nevertheless, most reported solutions (mostly...
In this work, Schottky diodes based on amorphous indium-gallium-zinc-oxide (IGZO) were fabricated cellulose microfiber paper substrate. Silver lines used as the barrier printed, in parallel to thermally evaporated Cr/Au ohmic contact, using a dispense printer. The morphological and electrical characteristics of devices are presented. exhibited rectification ratios ranging from 3.4 34.9 at ±1V with ON voltages that range 1.1V 1.4 V, for device lengths (Ag Au distance) 145 µm 894 µm....
Siemens Solar Industries (SSI) began a three-year, three-phase cost shared contract in March 1992 to demonstrate significant reductions and improvements manufacturing technology. The work has focused on near-term projects for implementation the SSI Czochralski (Cz) facility Camarillo, California. been undertaken increase commercial viability volume of photovoltaic by evaluating most categories then lowering each item through experimentation, materials refinement, better industrial...
To minimize electronic waste, flexible and printed electronics (i.e., sensors) on disposable or biodegradable substrates are becoming increasingly popular. In this work, we demonstrate the fabrication, by exclusive means of dispense printing, an impedimetric relative humidity (RH) sensor with poly(3,4-ethylenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) based interdigitated electrodes (IDEs) directly a paper cellulose-based substrate. The response to was evaluated first in climatic...
Carbon nanotubes are a promising sensing material for bio-transduction devices, due to their unique electrical properties, nanosize, bio-compatibility, and simple low-cost processability. In this contribution, we present two classes of devices (i.e., electrolyte-gated field-effect transistor-based sensors gas sensors) fabricated by facile scalable spray deposition water-based carbon nanotube inks. The developed platforms have been employed the detection several analytes different...
In this work, gas sensors based on laser reduction of graphene oxide (GO) have been fabricated and studied. Chemico-physical structure the prototypes sensor were characterized by Raman spectroscopy, X-ray Photoelectron Spectroscopy (XPS) four-point contact measurements to determine sheet resistance. Furthermore, sensing properties exposed 10 ppm 100 ethanol 25 130 ammonia The results show that devices present a first-order low pass filter electrical impedance response, with virtually zero...