Facile preparation of a Nb2O5 blocking layer for dye-sensitized solar cells
| Autor: | Ming Hao Jin, Kwang-Won Park, Jongin Hong, Sung-Hwan Lim, Sungwoo Ahn, Jeemin Song |
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| Rok vydání: | 2014 |
| Předmět: |
Photocurrent
Materials science Sputter deposition Condensed Matter Physics Tin oxide Electronic Optical and Magnetic Materials Dye-sensitized solar cell Chemical engineering Mechanics of Materials Sputtering Materials Chemistry Ceramics and Composites Niobium oxide Electrical and Electronic Engineering Thin film Layer (electronics) |
| Zdroj: | Journal of Electroceramics. 34:221-227 |
| ISSN: | 1573-8663 1385-3449 |
| Popis: | The introduction of a niobium oxide layer between fluorine-doped tin oxide (FTO) and TiO2 electrodes is known to enhance the power conversion efficiency (η) of dye-sensitized solar cells (DSSCs). Nb thin films were deposited on FTO glass substrates using RF magnetron sputtering. TiO2 pastes were then screen-printed onto the Nb thin films. The multilayered structures were annealed at 500 °C in a muffle furnace and assembled with Pt counter electrodes for DSSC performance evaluation. The Nb thin films were oxidized during the calcination process, producing a post-oxidized layer that increased the solar-cell efficiency by about 15 % and the photocurrent density by approximately 25 %. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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