Multi-branched multi-anchoring metal-free dyes as photosensitizers for dye-sensitized solar cells (DSSCs) are reviewed. The article outlines design strategies, main synthetic routes and optical and photovoltaic properties of two families of multi-branched sensitizers: (a) D-(?-A)n (D = donor, ? = ?-spacer, A = acceptor/anchoring functionality) structures containing arylamine, carbazole, phenothiazine or phenoxazine derivatives as D groups, and (b) multi-donor multi-anchoring architectures from interconnected mono-branched D-?-A arms, together with X- and Y-shaped dyes. Although this class has been reported only in the last five years, a variety of molecular architectures, donors, and ?-spacers have been used and combined in multi-branched molecules. The multibranched geometry induces distinctive features including enhanced qualitative and quantitative optical properties, increased currents and quantum efficiencies, and control of molecular aggregation.

Manfredi, N., Cecconi, B., Abbotto, A. (2014). Multi-Branched Multi-Anchoring Metal-Free Dyes for Dye-Sensitized Solar Cells. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2014(32), 7069-7086 [10.1002/ejoc.201402422].

Multi-Branched Multi-Anchoring Metal-Free Dyes for Dye-Sensitized Solar Cells

MANFREDI, NORBERTO
Primo
;
CECCONI, BIANCA
Secondo
;
ABBOTTO, ALESSANDRO
2014

Abstract

Multi-branched multi-anchoring metal-free dyes as photosensitizers for dye-sensitized solar cells (DSSCs) are reviewed. The article outlines design strategies, main synthetic routes and optical and photovoltaic properties of two families of multi-branched sensitizers: (a) D-(?-A)n (D = donor, ? = ?-spacer, A = acceptor/anchoring functionality) structures containing arylamine, carbazole, phenothiazine or phenoxazine derivatives as D groups, and (b) multi-donor multi-anchoring architectures from interconnected mono-branched D-?-A arms, together with X- and Y-shaped dyes. Although this class has been reported only in the last five years, a variety of molecular architectures, donors, and ?-spacers have been used and combined in multi-branched molecules. The multibranched geometry induces distinctive features including enhanced qualitative and quantitative optical properties, increased currents and quantum efficiencies, and control of molecular aggregation.
Articolo in rivista - Articolo scientifico
solar cells; photovoltaics; organic; dyes
English
2014
2014
32
7069
7086
none
Manfredi, N., Cecconi, B., Abbotto, A. (2014). Multi-Branched Multi-Anchoring Metal-Free Dyes for Dye-Sensitized Solar Cells. EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, 2014(32), 7069-7086 [10.1002/ejoc.201402422].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/56843
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