Publications by Thomas Maeder | EPFL Graph Search

Near-Room-Temperature Detection of Aromatic Compounds with Inkjet-Printed Plasticized Polymer Composites

Thomas Maeder, Jürgen Brugger, Mohammadmahdi Kiaee

Chemiresistive gas sensors composed of a thermoplastic polymer matrix and conductive fillers offer various advantages for detecting volatile organic compounds (VOCs), including low power consumption due to near-room-temperature operation, high sensitivity, ...

Amer Chemical Soc2024

Printed Polymer Composite Sensors for Low-Power, Near Room-Temperature Detection and Classification of VOCS

Thomas Maeder, Jürgen Brugger, Mohammadmahdi Kiaee

We demonstrate the application of inkjet-printed near room-temperature chemiresistors composed of polymer-carbon black (CB) composites for detecting and classifying volatile organic compounds (VOC). Our results demonstrate that the printed sensors can sele ...

IEEE2021

Inkjet‐Printed Composites for Room‐Temperature VOC Sensing: From Ink Formulation to Sensor Characterization

Thomas Maeder, Jürgen Brugger, Mohammadmahdi Kiaee

The authors report the fabrication and characterization of chemiresistive sensors, composed of a thermoplastic elastomer (TPE), styrene‐ethylene‐ran‐butylene‐styrene, and a high‐structure carbon black (CB) targeted for detecting hydrocarbons at or near roo ...

Wiley2020

Film Morphology Effect on VOC Sensor Performance Fabricated by Drop-On-Demand Inkjet-Printing

Thomas Maeder, Jürgen Brugger, Mohammadmahdi Kiaee

This paper presents a sensor for detecting volatile organic compounds with an inkjet-printed composite. The sensing material is composed of polystyrene (35 kg/mol molecular weight) and a high structure carbon black, Ketjenblack EC-600JD. We used a dual-sol ...

IEEE2019

LTCC magnetic sensors at EPFL and TCV: Lessons learnt for ITER

Thomas Maeder, Pierre Lavanchy, Jonathan Bryan Lister, Xavier Llobet, Blaise Marlétaz, Philippe Marmillod, Matthias Garcin, Ugo Siravo, Caroline Jacq, Christian Moura, Duccio Testa, Frédéric Dolizy, Severino Antonioni, Matthieu Toussaint, Steve Couturier, Adrien Aymeric Thibault Corne, Aylwin Iantchenko, Lorenzo Stipani

Innovative 3D high-frequency magnetic sensors have been designed and manufactured in-house for installation on the Tokamak a Configuration Variable (TCV), and are currently routinely operational. These sensors combine the Low Temperature Co-fired Ceramic ( ...

2019

Study of Gd-induced shift of luminescence spectra of YGAG:Ce micropowders as a function of grain size

Thomas Maeder

2018

Synthesis and Investigation of Electrical Properties of Carbon Nanotube - Porous Matrix Composites near the Percolation Threshold

Thomas Maeder

2018

Tin Acetylacetonate as a Precursor for Producing Gas-Sensing SnO2 Thin Films

Thomas Maeder

2018

Unipolar Charging of Aerosol Particles in the Size Range of 75-500 nm by Needle-plate Corona Charger

Thomas Maeder

2018

Gas Sensor with Reduced Humidity Response, Based on Metal Oxide Nanoparticles Synthesized by Spark Discharge

Thomas Maeder

The most part of gas sensors based on tin dioxide semiconductor sensing material are fabricated by using sol-gel synthesis of SnO2. This process leads to the formation of highly sensitive sensing material; however, it forms hydroxyl groups on the surface o ...

ORIENTAL SCIENTIFIC PUBL CO2018

Inkjet-printing polymer nanocomposite for detecting VOCs

Thomas Maeder, Jürgen Brugger, Mohammadmahdi Kiaee

Eurosensors2018

Nanocrystalline ZnO Obtained by the Thermal Decomposition of [Zn(H2O)(O2C5H7)(2)] in 1-Butanol: Synthesis and Testing as a Sensing Material

Thomas Maeder

The influence of conditions of heat treatment of a solution [Zn(H2O)(O2C5H7)(2)] in 1-butanol (temperature 125-185 degrees C, treatment times 2, 4, and 6 h) on dispersion and microstructure of the formed nanocrystalline and poorly aggregated zinc oxide, pr ...

MAIK NAUKA/INTERPERIODICA/SPRINGER2018

Reducing Humidity Response of Gas Sensors for Medical Applications: Use of Spark Discharge Synthesis of Metal Oxide Nanoparticles

Thomas Maeder

The application of gas sensors in breath analysis is an important trend in the early diagnostics of different diseases including lung cancer, ulcers, and enteric infection. However, traditional methods of synthesis of metal oxide gas-sensing materials for ...

MDPI2018

Synthesis of nanocrystalline ZnO by the thermal decomposition of [Zn(H2O)(O2C5H7)(2)] in isoamyl alcohol

Thomas Maeder

It was studied how the conditions of heat treatment of a [Zn(H2O)(O2C5H7)(2)] solution in isoamyl alcohol at 120-140A degrees C for 2-60 min affect the precursor decomposition mechanism and the characteristics of the obtained nanocrystalline zinc oxide. In ...

Maik Nauka/Interperiodica/Springer2017

Impedance spectroscopy study of carbon nanotube–glass microfiber composites

Thomas Maeder

The method of fabricating composites composed of a glass micro ber matrix and the conductive nano bers is proposed. The nano bers incorporating single-walled carbon nanotubes (SWCNTs) and an organic material are spread over the surface of glass micro bers ...

2016

Fine structuration of low-temperature co-fired ceramic (LTCC) microreactors

Thomas Maeder, Lioubov Kiwi, Paul Muralt, Albert Renken, Bo Jiang, Julien Haber

The development of microreactors that operate under harsh conditions is always of great interest for many applications. Here we present a microfabrication process based on low-temperature co-fired ceramic (LTCC) technology for producing microreactors which ...

Royal Society of Chemistry2015

3D, LTCC-type, high-frequency magnetic sensors for the TCV Tokamak

Thomas Maeder, Caroline Jacq, Gaël André Léon Farine, Duccio Testa, Matthieu Toussaint, Adrien Aymeric Thibault Corne

High-frequency, 3D magnetic sensors have been designed and manufactured in-house for installation on the Tokamak a Configuration Variable (TCV). To optimize the in-vessel volume occupation, the sensors are based on combining the Low Temperature Co-fired Ce ...

Elsevier Science Sa2015

A low-temperature co-fired ceramic micro-reactor system for high-efficiency on-site hydrogen production

Thomas Maeder, Paul Muralt, Dimos Poulikakos, Bo Jiang

A ceramic-based, meso-scale fuel processor for on-board production of syngas fuel was demonstrated for applications in micro-scale solid-oxide fuel cells (mu-SOFCs). The processor had a total dimension of 12 mm x 40 mm x 2 mm, the gas reforming micro react ...

Elsevier2015

Meso-scale ceramic hotplates - A playground for high temperature microsystems

Thomas Maeder, Paul Muralt, Bo Jiang

This paper presents a mesa-scale low-temperature co-fired ceramic (LTCC) hotplate system. Using embedded thick-film platinum heaters, the hotplate has been able to operate at about 600 degrees C in a reliable manner, while its operating temperature can be ...

Elsevier2015

Overview on low temperature co-fired ceramic sensors

Thomas Maeder

Low Temperature Co-fired Ceramics (LTCC) is one of the microelectronic techniques. This technology was initially developed as an alternative to Printed Circuit Boards (PCB) and classical thick-film technology, and it has found application in the fabricatio ...

Elsevier2015