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| Titel: |
Photoconduction in anodic tungsten oxide thin films |
| Auteur: |
Nazar, Fateh Mohammad Mahmood, Fazal |
| Verschenen in: |
International journal of electronics |
| Paginering: | Jaargang 56 (1984) nr. 1 pagina's 57-62 |
| Jaar: |
1984-01-01 |
| Inhoud: |
Photoconduction in anodic films of tungsten oxide in the form of Al-WO3,-W structures has been measured in the spectral energy range 1·5 to 5·25 eV. Thin films of tungsten oxide were prepared by anodic oxidation of 99·999% pure tungsten foils using an aqueous solution containing 0·4 M KNO3 and 0·04 M HO3 as the electrolyte. Significant photocurrent starts at about 3·09 eV and a strong peak occurs at 3·26 eV which corresponds to the optical band gap of the anodic WO3 films. Five peaks at different photon energies above 3·26 eV also appear in the spectral response curves. These peaks may be due to contribution to photocurrents from higher energy bands. The photocurrents are higher for top electrode negative than for top electrode positive. This may be due to some asymmetry at the electrodes. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 12 van 16 gevonden artikelen
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