Publications de Elizabeth Buitrago Godinez

Detection of ultra-low protein concentrations with the simplest possible field effect transistor

Mihai Adrian Ionescu, Elizabeth Buitrago Godinez

Silicon nanowire (Si NW) sensors have attracted great attention due to their ability to provide fast, low-cost, label-free, real-time detection of chemical and biological species. Usually configured as field effect transistors (FETs), they have already dem ...

IOP PUBLISHING LTD2019

Sensing with Advanced Computing Technology: Fin Field-Effect Transistors with High-k Gate Stack on Bulk Silicon

Didier Bouvet, Mihai Adrian Ionescu, Sara Rigante, Antonios Bazigos, Elizabeth Buitrago Godinez, Paolo Scarbolo

Field-effect transistors (FETs) form an established technology for sensing applications. However, recent advancements and use of high-performance multigate metal-oxide semiconductor FETs (double-gate, FinFET, trigate, gate-all-around) in computing technolo ...

Amer Chemical Soc2015

Carbon nanotube gas sensor array for multiplex analyte discrimination

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Hoël Maxime Guérin, Elizabeth Buitrago Godinez

The lack of selectivity toward a particular analyte has always been the primary concern regarding CNT-based gas sensors. For that reason, in here we present a gas discrimination strategy that focuses on the electrode-CNT junction. The junction is shown to ...

Elsevier Science Sa2015

Component design and testing for a miniaturised autonomous sensor based on a nanowire materials platform

Maher Kayal, François Krummenacher, Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Naser Khosro Pour, Elizabeth Buitrago Godinez

We present the design considerations of an autonomous wireless sensor and discuss the fabrication and testing of the various components including the energy harvester, the active sensing devices and the power management and sensor interface circuits. A com ...

Springer2014

Electrical characterization of high performance, liquid gated vertically stacked SiNW-based 3D FET biosensors

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Hoël Maxime Guérin, Elizabeth Buitrago Godinez

A 3D vertically stacked silicon nanowire (SiNW) field effect transistor featuring a high density array of fully depleted channels gated by a backgate and one or two symmetrical platinum side-gates through a liquid has been electrically characterized for th ...

Elsevier Science Sa2014

The top-down fabrication of a 3D-integrated, fully CMOS-compatible FET biosensor based on vertically stacked SiNWs and FinFETs

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Sara Rigante, Elizabeth Buitrago Godinez

A 3D vertically stacked silicon nanowire (SiNW) and Fin field effect transistor (FET) featuring a high density array (7 or 8 x 20 SiNWs, > 4 Fins vertically stacked) of fully depleted, ultra-thin (SiNWs diameters similar to 15-30 nm, Fin width/height fw si ...

Elsevier2014

High-yield, in-situ fabrication and integration of horizontal carbon nanotube arrays at the wafer scale for robust ammonia sensors

Mihai Adrian Ionescu, Laurent Syavoch Bernard, Hoël Maxime Guérin, Elizabeth Buitrago Godinez

This paper reports the successful experimental demonstration of the localized growth of horizontal, dense carbon nanotube (CNT) arrays in situ and at the wafer scale. The selectivity and directionality of the CNT catalytic growth process along with the ade ...

Pergamon-Elsevier Science Ltd2014

High Performance, Vertically Stacked SiNW/Fin Based 3D FETs for Biosensing Applications

Elizabeth Buitrago Godinez

EPFL2014

Junctionless silicon nanowire transistors for the tunable operation of a highly sensitive, low power sensor

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Matthieu Berthomé, Elizabeth Buitrago Godinez

Silicon nanowire (SiNW) field effect transistors (FETs) have been widely investigated as biological sensors for their remarkable sensitivity due to their large surface to volume ratio (S/V) and high selectivity towards a myriad of analytes through function ...

Elsevier2013

Functionalized 3D 7x20-array of vertically stacked SiNW FET for streptavidin sensing

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Elizabeth Buitrago Godinez

A 3D, vertically stacked silicon nanowire (SiNW) field effect transistor (FET) featuring a high density array (7×20) of fully depleted channels has been successfully fabricated by a CMOS compatible process on silicon on insulator (SOI) and functionalized f ...

IEEE2013

Vertically stacked Si nanostructures for biosensing applications

Mihai Adrian Ionescu, Montserrat Fernandez-Bolanos Badia, Elizabeth Buitrago Godinez

High density (7-10 NW/μm) SiNW arrays of up to 16 nanowires vertically stacked with diameter widths below 20 nm have been successfully fabricated to create highly sensitive 3D FETs for biosensing applications. In order to take advantage of the increased se ...

Elsevier2012

Nanoparticle Synthesis and Growth in a Continuous Plasma Reactor from Organosilicon Precursors

Elizabeth Buitrago Godinez

Silica-like nanoparticles are produced from four different organosilicon monomers HMDSO, TMDSO, TEOS and TMOS in a continuous non-equilibrium plasma reactor. The nanoparticle synthesis is studied as a function of the process pressure, plasma power, gas vel ...

Wiley-Blackwell2012