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EnglishA highly efficient ZnO photoanode for dye-sensitized solar cells was successfully grown by a simple, low cost, and scalable method. A nanostructured coral-shaped Zn layer was deposited by sputtering onto fluorine-doped tin oxide/glass slices at room temperature and then thermally oxidized in ambient atmosphere. Stoichiometry, crystalline phase, quality, and morphology of the film were investigated, evidencing the formation of a highly porous branched nanostructure, with a pure wurtzite crystalline structure. ZnO-based dye-sensitized solar cells were fabricated with customized microfluidic architecture. Dye loading on the oxide surface was analyzed with ultraviolet-visible spectroscopy, and the dependence of the cell efficiency on sensitizer incubation time and film thickness was studied by current-voltage electrical characteriza- tion, incident photon-to-electron conversion efficiency, and impedance spectroscopy measurements, showing the promising properties of this material for the fabrication of dye-sensitized solar cell photoanodes with a solar conversion efficiency up to 4.58%.
Coral-shaped ZnO nanostructures for Dye Sensitized Solar Cell photoanodes / A. Lamberti; R. Gazia; A. Sacco; S. Bianco; M. Quaglio; A. Chiodoni; E. Tresso; C.F. Pirri. - In: PROGRESS IN PHOTOVOLTAICS. - ISSN 1062-7995. - ELETTRONICO. - 22(2014), pp. 189-197.
| Titolo: | Coral-shaped ZnO nanostructures for Dye Sensitized Solar Cell photoanodes |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/pip.2251 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| pirri2.pdf | Articolo principale | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2501959
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