Abstract

Three novel 2D-p-A metal-free organic dyes TK 7e9 containing a dibenzofulvene (DBF) linked to twothiophene units as the p-bridge, diarylamines with and without alkoxy chains as donor groups and thecyanoacrylic acid moiety as the acceptor and anchoring group were synthesized. The new dyes TK werecharacterized by optical and electrochemical measurements and density functional theory calculationsand were used as sensitizers in liquid dye-sensitized solar cells. The effects of alkoxy-functionalization ofdonor moiety and of hexyl chain insertion onto one thienyl ring of p-linker on dye properties andperformances were investigated. The results discover the dye TK7, bearing two simple diphenylaminegroups without alkoxy chains, exhibits the best behavior in terms of light absorption and cell performance(PCE of 7.9% and photovoltaic parameters of Jsc of 17.82 mA cm
2, Voc of 670 mV and FF of 0.66).Lower power conversion efficiencies of 6.3% and 6.1% were found for TK8 and TK9, respectively, asa consequence of the presence of the alkoxy chains.

Autore Pugliese

• Capodilupo Agostina Lina

Tutti gli autori

• Capodilupo A.L.; Giannuzzi R.; Corrente G.A.; De Marco L.; Fabiano E.; Cardone A.; Gigli G.; Ciccarella G.

Titolo volume/Rivista

Tetrahedron

Anno di pubblicazione

2016

ISSN

1464-5416

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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