Publications de Francisco Molina Lopez

Smart RFID Label with a Printed Multisensor Platform for Environmental Monitoring

Nico de Rooij, Francisco Molina Lopez, Danick Briand, Andres Felipe Vasquez Quintero

2016

Properties and Printability of Inkjet and Screen-Printed Silver Patterns for RFID Antennas

Nico de Rooij, Francisco Molina Lopez, Danick Briand, Jinyu Jason Ruan

We report the modeling, and geometrical and electrical characterization, of inkjet and screen-printed patterns on different polymeric substrates for use as antennas in radio-frequency identification (RFID) applications. We compared the physical and electri ...

Springer Verlag2014

Development of a New Generation of Ammonia Sensors on Printed Polymeric Hotplates

Nico de Rooij, Francisco Molina Lopez, Danick Briand, Andres Felipe Vasquez Quintero, El Hadji Malick Camara

Conducting polyaniline-based chemiresistors on printed polymeric micro-hotplates were developed, showing sensitive and selective detection of ammonia vapor in air. The devices consist of a fully inkjet-printed silver heater and interdigitated electrodes on ...

American Chemical Society2014

Foil-Level Inkjet-Printed pyroMEMS Balloon Actuators: Fabrication, Modeling, and Validation

Nico de Rooij, Francisco Molina Lopez, David de Koninck, Danick Briand

A cleanroom-free fabrication process adapted to microfluidic devices is presented for pyrotechnical microelectromechanical systems balloon actuators. The actuators are intended for on-chip pumping and fluid ejection to replace tabletop pumping solutions in ...

Institute of Electrical and Electronics Engineers2014

Study of bending reliability and electrical properties of platinum lines on flexible polyimide substrates

Nico de Rooij, Jérôme Courbat, Francisco Molina Lopez, Danick Briand

We have experimentally studied the variation in electrical resistance of flexible platinum lines patterned on polyimide foil when they are subjected to circular bending constraints. The lines were patterned by means of standard photolithography and sputter ...

Elsevier2014

Inkjet-Printed Multisensor Platform on Flexible Substrates for Environmental Monitoring

Francisco Molina Lopez

EPFL2014

Large Arrays Of Inkjet-Printed Mems Microbridges On Foil

Nico de Rooij, Francisco Molina Lopez, Danick Briand

This works describes the fabrication process of an array of printed MEMS microbridges on polymeric foil, performed in only four easy steps. Each functional material was deposited exclusively by inkjet-printing technique, compatible with large-area fabricat ...

IEEE2014

Decreasing the size of printed comb electrodes by the introduction of a dielectric interlayer for capacitive gas sensors on polymeric foil: Modeling and fabrication

Nico de Rooij, Francisco Molina Lopez, Danick Briand

In this work we present a novel strategy to fabricate printed comb electrodes devices with decreased size by the introduction of a thin dielectric layer between the two combs. The electrical insulation of the two polarities prevents short-cuts occurring be ...

Elsevier2013

Theoretical and experimental study of the bending influence on the capacitance of interdigitated micro-electrodes patterned on flexible substrates

Nico de Rooij, Francisco Molina Lopez, Danick Briand

Interdigitated electrodes are common structures in the fields of microelectronics and MEMS. Recent developments in flexible electronics compel an understanding of such structures under bending constraints. In this work, the behavior of interdigitated micro ...

American Institute of Physics2013

A robust platform for textile integrated gas sensors

Nico de Rooij, Jérôme Courbat, Francisco Molina Lopez, Danick Briand, Caglar Ataman, Andres Felipe Vasquez Quintero, Giorgio Mattana

Fabrication, textile integration and post-weaving characterization of a robust platform for monolithically integrated, low-power gas and temperature sensing are presented. The platform, consisting of an interdigitated planar capacitor for gas sensing and a ...

Elsevier2013

Fully Inkjet-Printed Parallel-Plate Capacitive Gas Sensors on Flexible Substrate

Nico de Rooij, Francisco Molina Lopez, Danick Briand

Small fully inkjet-printed gas sensors based on capacitive parallel-plate (PP) structures have been realized on flexible plastic foil and characterized. A gas sensing layer was inkjet-printed between inkjet-printed bottom and top silver electrodes. Compare ...

Ieee2012

Printed sensors on smart RFID labels for logistics

Nico de Rooij, Francisco Molina Lopez, Danick Briand, Andres Felipe Vasquez Quintero, Giorgio Mattana

This communication presents an overview on our activities on the development of printed sensors on flexible polymeric foil for RFID. We are envisioning the direct printing of sensors on different types of products such as smart labels and RFID tags. This t ...

Ieee2012