Photochromic coloration of W03 with visible light

Bechinger, Clemens; Wirth, Eckehard; Leiderer, Paul

Photochromic coloration of W03 with visible light

Dateien

174_applphyslett_1996.pdfGröße: 401.14 KBDownloads: 272

Datum

1996

Autor:innen

Bechinger, Clemens

Wirth, Eckehard

Leiderer, Paul

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Applied Physics Letters. 1996, 68(20), pp. 2834-2836. Available under: doi: 10.1063/1.116340

Zusammenfassung

Thin anlorphous films of tungsten oxide (WO3) are well known to change heir optical absorption behavior upon light exposure, usually referred to as photochromic effect. Since the formation of color centers is closely related to the optical creation of electron-hole pairs the sensitivity of the photochromic effect in W03 is limited to energies above its band-gap energy of 3.25 eV, corresponding lo the near-uluaviolet range. We will demonstrate that in case of a thin cadrnjum sulfide (CdS) layer underneath the tungsten oxide film the sensitivity of photochromism is shifted into the visible range. This result is interpreted in terms of charge carrier injection from the CdS into the WO3. Apart from a more detailed understanding of the photochromic effect this may have also relevance for technical applications.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

BECHINGER, Clemens, Eckehard WIRTH, Paul LEIDERER, 1996. Photochromic coloration of W03 with visible light. In: Applied Physics Letters. 1996, 68(20), pp. 2834-2836. Available under: doi: 10.1063/1.116340

BibTex

@article{Bechinger1996Photo-8881,
  year={1996},
  doi={10.1063/1.116340},
  title={Photochromic coloration of W03 with visible light},
  number={20},
  volume={68},
  journal={Applied Physics Letters},
  pages={2834--2836},
  author={Bechinger, Clemens and Wirth, Eckehard and Leiderer, Paul}
}

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