Photoinduced doping of thin amorphous WO3 films

Bechinger, Clemens; Herminghaus, Stephan; Leiderer, Paul

Photoinduced doping of thin amorphous WO3 films

Dateien

138_physrevlett_1994.pdfGröße: 843.45 KBDownloads: 559

Datum

1994

Autor:innen

Bechinger, Clemens

Herminghaus, Stephan

Leiderer, Paul

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Thin Solid Films. 1994, 239(1), pp. 156-160. Available under: doi: 10.1016/0040-6090(94)90123-6

Zusammenfassung

During exposure of thin amorphous WO3 films to UV light, both the optical absorptivity and the electrical conductivity increase. Using optically excited surface plasmons, we were able to measure even subtle changes of the absorptivity of 10 nm thick films simultaneously with their electrical resistivity at various temperatures. Our measurements show that the temperature dependence and the dependence on the density-of-states of the electrical conductivity in WO3 can be explained by variable-range hopping of charge carriers between optically excited states near the Fermi level. Accordingly UV irradiation of tungsten oxide can be understood in terms of a photoinduced doping process which may have relevance for technical applications.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

BECHINGER, Clemens, Stephan HERMINGHAUS, Paul LEIDERER, 1994. Photoinduced doping of thin amorphous WO3 films. In: Thin Solid Films. 1994, 239(1), pp. 156-160. Available under: doi: 10.1016/0040-6090(94)90123-6

BibTex

@article{Bechinger1994Photo-4960,
  year={1994},
  doi={10.1016/0040-6090(94)90123-6},
  title={Photoinduced doping of thin amorphous WO3 films},
  number={1},
  volume={239},
  journal={Thin Solid Films},
  pages={156--160},
  author={Bechinger, Clemens and Herminghaus, Stephan and Leiderer, Paul}
}

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