Abstract
Thin films of tungsten oxide were fabricated by RF-sputtering. The films were annealed in vacuum and hydrogen at different temperatures to enhance the solar light absorption in the visible and near infrared regions by creating oxygen vacancies and localized surface plasmon resonance. The effect of vacuum and hydrogen annealing on structural, morphology, chemical, electrical and optical properties were investigated. Vacuum-annealed and hydrogen-annealed films behaved like degenerate semiconductor and showed strong absorption in the near-infrared region due to localized surface plasmon resonance. The solar light harvesting properties of as-deposited, vacuum-annealed and hydrogen-annealed tungsten oxide films were examined by measuring their photocurrent response.
| Original language | English |
|---|---|
| Pages (from-to) | 28755-28765 |
| Number of pages | 11 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 42 |
| Issue number | 48 |
| DOIs | |
| State | Published - 30 Nov 2017 |
Bibliographical note
Publisher Copyright:© 2017 Hydrogen Energy Publications LLC
Keywords
- Band gap
- Hall effect
- LSPR
- Oxygen vacancies
- Photocurrent
- Solar light
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
