Abstract
In this study, aligned zinc oxide (ZnO) nanorods (NRs) with various lengths (1.5-5 μm) were deposited on ZnO:Al (AZO)-coated glass substrates by using a solution phase deposition method; these NRs were prepared for application as working electrodes to increase the photovoltaic conversion efficiency of solar cells. The results were observed in detail by using X-ray diffraction, field-emission scanning electron microscopy, UV-visible spectrophotometry, electrochemical impedance spectroscopy, incident photo-to-current conversion efficiency, and solar simulation. The results indicated that when the lengths of the ZnO NRs increased, the adsorption of D-719 dyes through the ZnO NRs increased along with enhancing the short-circuit photocurrent and open-circuit voltage of the cell. An optimal power conversion efficiency of 0.64% was obtained in a dye-sensitized solar cell (DSSC) containing the ZnO NR with a length of 5 μm. The objective of this study was to facilitate the development of a ZnO-based DSSC.
Original language | English |
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Pages (from-to) | 8860-8867 |
Number of pages | 8 |
Journal | Materials |
Volume | 8 |
Issue number | 12 |
DOIs | |
State | Published - 2015 |
Bibliographical note
Publisher Copyright:© 2015 by the authors.
Keywords
- AZO film
- Dye-sensitized solar cells
- Nanorods