Detail publikačního výsledku

Selectively arranged single-wire based nanosensor array systems for gas monitoring

CHMELA, O.; SADÍLEK, J.; SAMÀ, DOMÈNECH-GIL, G.; J.; SOMER, J.; MOHAN, R.; ROMANO-RODRIGUEZ, A.; HUBÁLEK, J.; VALLEJOS VARGAS, S.

Originální název

Selectively arranged single-wire based nanosensor array systems for gas monitoring

Anglický název

Selectively arranged single-wire based nanosensor array systems for gas monitoring

Druh

Článek WoS

Originální abstrakt

Gas nanosensors, comprised of arrays of nanoelectrodes with finger-widths of ~100 nm developed by electron beam lithography and aerosol assisted chemical vapor deposited non-functionalized and Pt-functionalized tungsten oxide nanowires (<100 nm) subsequently integrated across the pairs of electrodes via dielectrophoresis method, are developed in this work. The functionality of these devices is validated towards various concentrations of NO2 and C2H5OH, and results demonstrate reproducible and consistent responses with better sensitivity and partial selectivity for the non-functionalized systems to NO2, as opposed to the Pt-functionalized systems, which display better sensing properties towards C2H5OH with a loss of response to NO2. These results are explained on the basis of the additional chemical and electronic interactions at the Pt/tungsten oxide interface, which increase the pre-adsorption of oxygen species and make the functionalized surface rather more sensitive to C2H5OH than to NO2, in contrast to the non-functionalized surface.

Anglický abstrakt

Gas nanosensors, comprised of arrays of nanoelectrodes with finger-widths of ~100 nm developed by electron beam lithography and aerosol assisted chemical vapor deposited non-functionalized and Pt-functionalized tungsten oxide nanowires (<100 nm) subsequently integrated across the pairs of electrodes via dielectrophoresis method, are developed in this work. The functionality of these devices is validated towards various concentrations of NO2 and C2H5OH, and results demonstrate reproducible and consistent responses with better sensitivity and partial selectivity for the non-functionalized systems to NO2, as opposed to the Pt-functionalized systems, which display better sensing properties towards C2H5OH with a loss of response to NO2. These results are explained on the basis of the additional chemical and electronic interactions at the Pt/tungsten oxide interface, which increase the pre-adsorption of oxygen species and make the functionalized surface rather more sensitive to C2H5OH than to NO2, in contrast to the non-functionalized surface.

Klíčová slova

Gas sensor, nanosensor, nanoelectrodes, nanowires

Klíčová slova v angličtině

Gas sensor, nanosensor, nanoelectrodes, nanowires

Autoři

CHMELA, O.; SADÍLEK, J.; SAMÀ, DOMÈNECH-GIL, G.; J.; SOMER, J.; MOHAN, R.; ROMANO-RODRIGUEZ, A.; HUBÁLEK, J.; VALLEJOS VARGAS, S.

Rok RIV

2019

Vydáno

01.05.2018

Nakladatel

Royal Society of Chemistry

ISSN

2040-3372

Periodikum

Nanoscale

Svazek

10

Číslo

19

Stát

Spojené království Velké Británie a Severního Irska

Strany od

9087

Strany do

9096

Strany počet

10

URL

http://pubs.rsc.org/en/content/articlelanding/2018/nr/c8nr01588k#!divAbstract

Plný text v Digitální knihovně

http://hdl.handle.net/11012/84141

BibTex

@article{BUT146943,
  author="CHMELA, O. and SADÍLEK, J. and SAMÀ, DOMÈNECH-GIL, G. and J. and SOMER, J. and MOHAN, R. and ROMANO-RODRIGUEZ, A. and HUBÁLEK, J. and VALLEJOS VARGAS, S.",
  title="Selectively arranged single-wire based nanosensor array systems for gas monitoring",
  journal="Nanoscale",
  year="2018",
  volume="10",
  number="19",
  pages="9087--9096",
  doi="10.1039/c8nr01588k",
  issn="2040-3364",
  url="http://pubs.rsc.org/en/content/articlelanding/2018/nr/c8nr01588k#!divAbstract"
}

Dokumenty

c8nr01588k