Salvatori, Paolo and Marotta, Gabriele and Cinti, Antonio and Mosconi, Edoardo and Panigrahi, Mallika and Giribabu, Lingamallu and Nazeeruddind, Mohammad K and De Angelis, Filippo (2013) A new terpyridine cobalt complex redox shuttle for dye-sensitized solar cells. Inorganica Chimica Acta, 406. pp. 106-112. ISSN 0020-1693
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Abstract
A new cobalt-terpyridine redox shuttle ([Co(Cl-phenyl-terpyridine)2]2+/3+) has been synthesized, characterized, computationally investigated and then tested in photovoltaic devices, in conjunction with the prototypical N719 and Z907 ruthenium dyes. Lower efficiencies compared to the reference [Co(bpy)3]2+/3+ redox couple were obtained, probably due to increased recombination processes. Improvements in the devices performances were obtained by using chenodeoxycholic acid as surface co-adsorbent and as an electrolyte additive. Moreover, to better rationalize the photovoltaic results, the effect of two different counterions (TFSI and PF6) has been investigated for the reference [Co(bpy)3]2+/3+ electrolyte, finding a reduced efficiency for the TFSI-based electrolyte.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Dye-sensitized solar cells (DSCs); Electrolyte; Cobalt complex; Terpyridine; Chenodeoxycholic acid |
| Subjects: | 500 Scienze naturali e Matematica > 540 Chimica e scienze connesse |
| Depositing User: | Francesca Cavazzini |
| Date Deposited: | 12 Dec 2013 15:59 |
| Last Modified: | 12 Dec 2013 15:59 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/8014 |
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