Archive: 2016 - Moldavian Journal of the Physical Sciences

22 Dec 2016

2016
V. 15
3-4
(p.139 - 149)

Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications

CZU: 536.21:621.9+539.51

Authors:

Lupan, Oleg; Postica, Vasilie; Creţu, Vasilii; Pauporte, Thierry; Adelung, Rainer

Summary:

The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of a double NW nanodevice in comparison with a single Pd/ZnO NWbased nanosensor. An enhancement in gas response is observed in both cases. In the case of connection in series of two NWs, it is attributed to an increased number of Schottky barriers, which are directly related to sensor response to gases. In the case of parallel connection of two NWs, higher electrical currents can flow through the device; it improves the sensor response too; in addition, this type of device can be more easily integrated in electronics due to higher currents in passive regime (in air) and is more stable.

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BibTeX

@article{ibn_50381,
author = {Lupan, O. and Postica, V. and Creţu, V. and Pauporte, T. and Adelung, R.},
title = {Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications},
journal = {Moldavian Journal of the Physical Sciences},
year = {2016},
volume = {15 (3-4)},
pages = {139-149},
month = {Dec},
abstract = {(EN) The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of a double NW nanodevice in comparison with a single Pd/ZnO NWbased nanosensor. An enhancement in gas response is observed in both cases. In the case of connection in series of two NWs, it is attributed to an increased number of Schottky barriers, which are directly related to sensor response to gases. In the case of parallel connection of two NWs, higher electrical currents can flow through the device; it improves the sensor response too; in addition, this type of device can be more easily integrated in electronics due to higher currents in passive regime (in air) and is more stable. },
url = {https://ibn.idsi.md/vizualizare_articol/50381},
}

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<dc:description xml:lang='en'>The hydrogen gas sensing properties of nanodevices based on two ZnO nanowires (NWs) functionalized/modified with palladium (Pd/ZnO) at room temperature are studied. The main goal of the study is to find which of the connections—in series or in parallel—is more favorable to improve the properties of a double NW nanodevice in comparison with a single Pd/ZnO NWbased nanosensor. An enhancement in gas response is observed in both cases. In the case of connection in series of two NWs, it is attributed to an increased number of Schottky barriers, which are directly related to sensor response to gases. In the case of parallel connection of two NWs, higher electrical currents can flow through the device; it improves the sensor response too; in addition, this type of device can be more easily integrated in electronics due to higher currents in passive regime (in air) and is more stable. </dc:description>
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“ ... ”

SM ISO690:2012

LUPAN, Oleg; POSTICA, Vasilie; CREŢU, Vasilii; PAUPORTE, Thierry; ADELUNG, Rainer. Series and parallel connection of individual Pd-modified ZnO nanowires for gas sensing applications. In: Moldavian Journal of the Physical Sciences. 2016, nr. 3-4(15), pp. 139-149. ISSN 1810-648X.