We report accurate characterization, modelling and simulation of SOI nanoribbon-based pH sensors and we compare operation in air (dry) and electrolyte (wet) environments. We find remarkably different current density distributions and geometry scaling rules, but similar series resistances and active trap state densities in the two configurations. Calibrated TCAD based simulations implementing an original approach to model the site-binding harge, and in good agreement with experiments, provide the necessary insights to interpret the non trivial dependence of the threshold voltage and current sensitivity on pH.
Characterization and modelling of differential sensitivity of nanoribbon-based pH-sensors / Scarbolo, Paolo; Accastelli, E.; Pittino, Federico; Ernst, T.; Guiducci, C.; Selmi, Luca. - ELETTRONICO. - (2015), pp. 2188-2191. (Intervento presentato al convegno Transducers 2015 tenutosi a Anchorage, Alaska (USA) nel 21-25 June 2015) [10.1109/TRANSDUCERS.2015.7181394].
Characterization and modelling of differential sensitivity of nanoribbon-based pH-sensors
SELMI, Luca
2015-01-01
Abstract
We report accurate characterization, modelling and simulation of SOI nanoribbon-based pH sensors and we compare operation in air (dry) and electrolyte (wet) environments. We find remarkably different current density distributions and geometry scaling rules, but similar series resistances and active trap state densities in the two configurations. Calibrated TCAD based simulations implementing an original approach to model the site-binding harge, and in good agreement with experiments, provide the necessary insights to interpret the non trivial dependence of the threshold voltage and current sensitivity on pH.File | Dimensione | Formato | |
---|---|---|---|
Scarbolo2015_transducers.pdf
Accesso riservato
Dimensione
1.4 MB
Formato
Adobe PDF
|
1.4 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris