Dye sensitized solar cells (DSSCs) with high performances have been fabricated mainly with organic solvent-based liquid electrolytes. However, these solvents not only have high vapor pressure, but they are often toxic and flammable. In the last few years, the idea of moving towards a water-based or completely aqueous system clearly emerged. DSSCs fabricated with aqueous electrolytes may offer reduced costs, non-flammability and environmental compatibility, but the presence of water in the cell may reduce the long-term stability as well as the photovoltaic performance. For this reason, in recent years, an increasing number of research articles has been published in this direction and new dyes, electrodes and electrolyte components are continuously proposed. In this work, the study of different dyes as well as truly aqueous electrolytes is presented. A few curious and anomalous behaviors observed in the literature and in our laboratories are investigated for this class of electrolytes. Moreover, the development of a series of novel aqueous gel electrolytes based on natural polymers is also discussed as well as their interesting photovoltaic characteristics

Aqueous solar cells: novel trends in hybrid photoelectrochemical devices / Falco, Marisa; Galliano, S.; Gerbaldi, Claudio; Viscardi, G.; Barolo, C.; Grätzel, M.; Bella, Federico. - STAMPA. - (2016), pp. 83-83. ((Intervento presentato al convegno Merck Young Chemists Symposium tenutosi a Rimini (Italy) nel 25-27th October, 2016.

Aqueous solar cells: novel trends in hybrid photoelectrochemical devices

FALCO, MARISA;GERBALDI, CLAUDIO;BELLA, FEDERICO
2016

Abstract

Dye sensitized solar cells (DSSCs) with high performances have been fabricated mainly with organic solvent-based liquid electrolytes. However, these solvents not only have high vapor pressure, but they are often toxic and flammable. In the last few years, the idea of moving towards a water-based or completely aqueous system clearly emerged. DSSCs fabricated with aqueous electrolytes may offer reduced costs, non-flammability and environmental compatibility, but the presence of water in the cell may reduce the long-term stability as well as the photovoltaic performance. For this reason, in recent years, an increasing number of research articles has been published in this direction and new dyes, electrodes and electrolyte components are continuously proposed. In this work, the study of different dyes as well as truly aqueous electrolytes is presented. A few curious and anomalous behaviors observed in the literature and in our laboratories are investigated for this class of electrolytes. Moreover, the development of a series of novel aqueous gel electrolytes based on natural polymers is also discussed as well as their interesting photovoltaic characteristics
978-88-86208-92-5
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2654706
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