Back-illuminated Dye-Sensitized Solar Cells (DSSCs) have been fabricated employing TiO2 nanotube (NT) arrays grown on a flexible Ti foil as a working electrode, an organic hemi-squaraine-based dye (CT1) as sensitizer, and a iodine-free transparent redox mediator (both in liquid and quasi-solid configuration) as electrolyte. The structural and morphological properties of the photoanodes and the obtained electrical performances on the final DSSC devices reaching conversion efficiencies values up to 2% are presented and discussed. The feasibility of a back-illuminated solar cell without corrosive and light-absorbing iodine-based electrolytes, metal-laden sensitizers and nanoparticles-based anodes has been demonstrated. Our work opens the way toward low-cost, non-polluting and flexible cells, proposing for the first time a solution for overcoming the limit of a low light harvesting in back-illuminated DSSCs.
TiO2 nanotubes as flexible photoanode for back-illuminated dye-sensitized solar cells with hemi-squaraine organic dye and iodine-free transparent electrolyte / Pugliese D.; Lamberti A.; Bella F.; Sacco A.; Bianco S.; Tresso E.. - In: ORGANIC ELECTRONICS. - ISSN 1566-1199. - STAMPA. - 15:12(2014), pp. 3715-3722. [10.1016/j.orgel.2014.10.018]
|Titolo:||TiO2 nanotubes as flexible photoanode for back-illuminated dye-sensitized solar cells with hemi-squaraine organic dye and iodine-free transparent electrolyte|
|Data di pubblicazione:||2014|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.orgel.2014.10.018|
|Appare nelle tipologie:||1.1 Articolo in rivista|
File in questo prodotto:
|X VQR-TiO2NTs for back ill DSC 2014OrganicElectronics.pdf||Articolo||2. Post-print / Author's Accepted Manuscript||Non Pubblico - Accesso privato/ristretto||Administrator Richiedi una copia|