Publication detail

Aerosol assisted chemical vapour deposition of gas sensitive SnO2 and Au-functionalised SnO2 nanorods via a non-catalysed vapour solid (VS) mechanism

VALLEJOS VARGAS, S. SELINA, S. ANNANOUCH, F. GRÁCIA, I. LLOBET, E. BLACKMAN, C.

Original Title

Aerosol assisted chemical vapour deposition of gas sensitive SnO2 and Au-functionalised SnO2 nanorods via a non-catalysed vapour solid (VS) mechanism

Type

journal article in Web of Science

Language

English

Original Abstract

Tin oxide nanorods (NRs) are vapour synthesised at relatively lower temperatures than previously reported and without the need for substrate pre-treatment, via a vapour-solid mechanism enabled using an aerosol-assisted chemical vapour deposition method. Results demonstrate that the growth of SnO2 NRs is promoted by a compression of the nucleation rate parallel to the substrate and a decrease of the energy barrier for growth perpendicular to the substrate, which are controlled via the deposition conditions. This method provides both single-step formation of the SnO2 NRs and their integration with silicon micromachined platforms, but also allows for in-situ functionalization of the NRs with gold nanoparticles via co-deposition with a gold precursor. The functional properties are demonstrated for gas sensing, with microsensors using functionalised NRs demonstrating enhanced sensing properties towards H2 compared to those based on non-functionalised NRs.

Keywords

tin oxide, nanorods, AACVD, gas sensor

Authors

VALLEJOS VARGAS, S.; SELINA, S.; ANNANOUCH, F.; GRÁCIA, I.; LLOBET, E.; BLACKMAN, C.

Released

23. 6. 2016

Publisher

Nature

ISBN

2045-2322

Periodical

Scientific Reports

Year of study

6

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

12

Pages count

12

URL

http://www.nature.com/articles/srep28464

Full text in the Digital Library

http://hdl.handle.net/11012/180466

BibTex

@article{BUT128551,
  author="Stella {Vallejos Vargas} and Soultana {Selina} and Fatima {Annanouch} and Isabel {Grácia} and Eduard {Llobet} and Chris {Blackman}",
  title="Aerosol assisted chemical vapour deposition of gas sensitive SnO2 and Au-functionalised SnO2 nanorods via a non-catalysed vapour solid (VS) mechanism",
  journal="Scientific Reports",
  year="2016",
  volume="6",
  number="1",
  pages="1--12",
  doi="10.1038/srep28464",
  issn="2045-2322",
  url="http://www.nature.com/articles/srep28464"
}