Abstract

Three novel organic dyes, coded TK1, TK2 and TK3, incorporating two donor moieties, cyanoacrylic acid as an acceptor/anchoring group, the dibenzofulvene core and an oligothiophene spacer in a 2D-π-A system, were designed, synthesized, and successfully utilized in dye-sensitized solar cells. The dye TK3, containing two thiophene rings as spacers, shows an IPCE action spectrum with a high plateau from 390 nm to 600 nm, increased open-circuit photovoltage by 40 mV and short-circuit photocurrent by 7.03 mA cm-1, with respect to TK1. Using CDCA as the co-adsorbent material, the Jsc of TK3 was increased to 14.98 mA cm-1 and a strong enhancement in the overall conversion efficiency (7.45%) was realized by TK3 compared to TK1 (1.08%), in liquid electrolyte-based DSSCs.

Autore Pugliese

• Ciccarella Giuseppe , Gigli Giuseppe

Tutti gli autori

• A. L. Capodilupo , L. De Marco , E. Fabiano , R. Giannuzzi , A. Scrascia , C. Clarlucci , G. A. Corrente , M. P. Cipolla , G. Gigli , G. Ciccarella

Titolo volume/Rivista

JOURNAL OF MATERIALS CHEMISTRY. A

Anno di pubblicazione

2014

ISSN

2050-7488

ISBN

Non Disponibile

Numero di citazioni Wos

15

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

17

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile