Dye-sensitized Solar Cells (DSCs) represent a promising and emerging technology because of their simple and easily scalable fabrication process, low cost of the components, color tunability, possibility of transparency and flexibility. However, efficiency and stability of DSCs are still limited, especially if compared to Si-based solar cells, and some of the components are often not environmental friendly and even dangerous. These issues prevent the large-scale industrialization of practical devices and solving them has become a key objective. To make it possible, we think it is necessary to consider the DSC as a complex system assembled with different and heterogeneous layers (FTO/semiconductor/sensitizer/electrolyte/Pt-FTO), each of them affected by intrinsic variability. It is clear that a classical OVAT (One-Variable-At-Time) method is not adequate and a comprehensive approach is strongly required. In particular, considering a higher number of experimental factors concurrently would be a better strategy to analyze in dept the multivariate DSC system. In this work, we show how chemometrics and multivariate design of experiments (DoE) can be used to study and optimize some components or fabrication procedures of DSCs in order to enhance their performance, long term stability and environmental compatibility.

Multivariate approaches for dye-sensitized solar cells / Galliano, S.; Barbero, N.; Gianotti, V.; Gerbaldi, Claudio; Barolo, C.; Bella, Federico. - STAMPA. - (2015), pp. 56-56. (Intervento presentato al convegno XV Sigma-Aldrich Young Chemists Symposium (SAYCS 2015) tenutosi a Rimini (Italy) nel October 27th-29th, 2015).

Multivariate approaches for dye-sensitized solar cells

GERBALDI, CLAUDIO;BELLA, FEDERICO
2015

Abstract

Dye-sensitized Solar Cells (DSCs) represent a promising and emerging technology because of their simple and easily scalable fabrication process, low cost of the components, color tunability, possibility of transparency and flexibility. However, efficiency and stability of DSCs are still limited, especially if compared to Si-based solar cells, and some of the components are often not environmental friendly and even dangerous. These issues prevent the large-scale industrialization of practical devices and solving them has become a key objective. To make it possible, we think it is necessary to consider the DSC as a complex system assembled with different and heterogeneous layers (FTO/semiconductor/sensitizer/electrolyte/Pt-FTO), each of them affected by intrinsic variability. It is clear that a classical OVAT (One-Variable-At-Time) method is not adequate and a comprehensive approach is strongly required. In particular, considering a higher number of experimental factors concurrently would be a better strategy to analyze in dept the multivariate DSC system. In this work, we show how chemometrics and multivariate design of experiments (DoE) can be used to study and optimize some components or fabrication procedures of DSCs in order to enhance their performance, long term stability and environmental compatibility.
2015
978-88-86208-94-9
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2620968
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