A gold nanoparticles transparent electrode was realized by chemical reduction. This work aims to compare the transparent gold nanoparticles electrode with a more commonly utilized gold-film-coated electrode in order to investigate its potential use as counter-electrode (CE) in dye-sensitized solar cells (DSSCs). A series of DSSC devices, utilizing I-/I3- and Co(III)/(II) polypyridine redox mediators [Co(dtb)3](3+)/(2+); dtb = 4,4 ' ditert-butyl-2,2 '-bipyridine)], were evaluated. The investigation focused firstly on the structural characterization of the deposited gold layers and then on the electrochemical study. The novelty of the work is the realization of a gold nanoparticles CE that reached 80% of average visible transmittance. We finally examined the performance of the transparent gold nanoparticles CE in DSSC devices. A maximum power conversion efficiency (PCE) of 4.56% was obtained with a commercial I-/I3--based electrolyte, while a maximum 3.1% of PCE was obtained with the homemade Co-based electrolyte.
Barichello, J., Spadaro, D., Gullace, S., Sinopoli, A., Calandra, P., Irrera, A., et al. (2022). Optically transparent gold nanoparticles for DSSC counter-electrode: an electrochemical characterization. MOLECULES, 27(13) [10.3390/molecules27134178].
Optically transparent gold nanoparticles for DSSC counter-electrode: an electrochemical characterization
Barichello, J.;Sinopoli, A.;Matteocci, F.;
2022-01-01
Abstract
A gold nanoparticles transparent electrode was realized by chemical reduction. This work aims to compare the transparent gold nanoparticles electrode with a more commonly utilized gold-film-coated electrode in order to investigate its potential use as counter-electrode (CE) in dye-sensitized solar cells (DSSCs). A series of DSSC devices, utilizing I-/I3- and Co(III)/(II) polypyridine redox mediators [Co(dtb)3](3+)/(2+); dtb = 4,4 ' ditert-butyl-2,2 '-bipyridine)], were evaluated. The investigation focused firstly on the structural characterization of the deposited gold layers and then on the electrochemical study. The novelty of the work is the realization of a gold nanoparticles CE that reached 80% of average visible transmittance. We finally examined the performance of the transparent gold nanoparticles CE in DSSC devices. A maximum power conversion efficiency (PCE) of 4.56% was obtained with a commercial I-/I3--based electrolyte, while a maximum 3.1% of PCE was obtained with the homemade Co-based electrolyte.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
