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1-s2.0-S1877705815024157-main.pdf (855.26 KB)

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2015-09-11

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CC BY-NC-ND, (c) Hoffmann et al., 2015
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/103443

Novel approaches towards highly selective self-powered gas sensors

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Recurs relacionat

http://dx.doi.org/10.1016/j.proeng.2015.08.752

Resum

The prevailing design approaches of semiconductor gas sensors struggle to overcome most of their current limitations such as poor selectivity, and high power consumption. Herein, a new sensing concept based on devices that are capable of detecting gases without the need of any external power sources required to activate interaction of gases with sensor or to generate the sensor read out signal. Based on the integration of complementary functionalities (namely; powering and sensing) in a singular nanostructure, self-sustained gas sensors will be demonstrated. Moreover, a rational methodology to design organic surface functionalization that provide high selectivity towards single gas species will also be discussed. Specifically, theoretical results, confirmed experimentally, indicate that precisely tuning of the sterical and electronic structure of sensor material/organic interfaces can lead to unprecedented selectivity values, comparable to those typical of bioselective processes. Finally, an integrated gas sensor that combine both the self-powering and selective detection strategies in one single device will also be presented.

Matèries

Detectors de gasos, Semiconductors

Matèries (anglès)

Gas detectors, Semiconductors

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Comunicacions a congressos (Enginyeria Electrònica i Biomèdica)
<b>Publicacions de projectes de recerca finançats per la UE</b>

Citació

HOFFMANN, Martin w. g., CASALS GUILLÉN, Olga, MAYRHOFER, Leonhard, FÀBREGA I CLAVERIA, Ma. carme, CACCAMO, Lorenzo, HERNÁNDEZ RAMÍREZ, Francisco, LILIENKAMP, Gerhard, DAUM, Winfried, MOSELER, Michael, SHEN, Hao, WAAG, Andreas, PRADES GARCÍA, Juan daniel. Novel approaches towards highly selective self-powered gas sensors. _Procedia Engineering_. 2015. Vol. 120, núm. 623-627. [consulta: 14 de gener de 2026]. ISSN: 1877-7058. [Disponible a: https://hdl.handle.net/2445/103443]

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