Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers (Articolo in rivista) (literal)

Anno

• 2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1002/cssc.201402164 (literal)

Alternative label

• Grisorio, Roberto; De Marco, Luisa; Agosta, Rita; Iacobellis, Rosabianca; Giannuzzi, Roberto; Manca, Michele; Mastrorilli, Piero; Gigli, Giuseppe; Suranna, Gian Paolo (2014)
  Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers
  in ChemSusChem (Weinh., Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Grisorio, Roberto; De Marco, Luisa; Agosta, Rita; Iacobellis, Rosabianca; Giannuzzi, Roberto; Manca, Michele; Mastrorilli, Piero; Gigli, Giuseppe; Suranna, Gian Paolo (literal)

Pagina inizio

• 2659 (literal)

Pagina fine

• 2669 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 7 (literal)

Rivista

• ChemSusChem (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 11 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 9 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• [ 1 ] Politecn Bari, DICATECh Dipartimento Ingn Civile Ambientale Terr, I-70125 Bari, Italy [ 2 ] Fdn Ist Italiano Tecnol IIT, CBN, I-73010 Arnesano, Italy [ 3 ] CNR, NNL Ist Nanosci, I-73100 Lecce, Italy [ 4 ] Univ Salento, Dept Math & Phys E De Giorgi, I-73100 Lecce, Italy (literal)

Titolo

• Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers (literal)

Abstract

• This study deals with the synthesis and characterization of two p-extended organic sensitizers (G1 and G2) for applications in dye-sensitized solar cells. The materials are designed with a D-A-pi-A structure constituted by i) a triarylamine group as the donor part, ii) a dithienyl-benzothiadiazole chromophore followed by iii) a further ethynylene-thiophene (G1) or ethynylene-benzene (G2) pi-spacer and iv) a cyano-acrylic moiety as acceptor and anchoring part. An unusual structural extension of the p-bridge characterizes these structures. The so-configured sensitizers exhibit a broad absorption profile, the origin of which is supported by density functional theory. The absence of hypsochromic shifts as a consequence of deprotonation as well as notable optical and electrochemical stabilities are also observed. Concerning the performances in devices, electrochemical impedance spectroscopy indicates that the structural modification of the pi-spacer mainly increases the electron lifetime of G2 with respect to G1. In devices, this feature translates into a superior power conversion efficiency of G2, reaching 8.1%. These results are comparable to those recorded for N719 and are higher with respect to literature congeners, supporting further structural engineering of the pi-bridge extension in the search for better performing pi-extended organic sensitizers. (literal)

Prodotto di

• Fotonica avanzata e proprietà quantiche nell'interazione luce-materia (MD.P06.007.003) (Modulo)
• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)

Autore CNR

• GIUSEPPE GIGLI (Persona)

Insieme di parole chiave

• Keywords of "Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di chimica dei composti organo metallici (ICCOM) (Istituto)
• Fotonica avanzata e proprietà quantiche nell'interazione luce-materia (MD.P06.007.003) (Modulo)

Autore CNR di

• GIUSEPPE GIGLI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• ChemSusChem (Rivista)

Insieme di parole chiave di

• Keywords of "Enhancing Dye-Sensitized Solar Cell Performances by Molecular Engineering: Highly Efficient pi-Extended Organic Sensitizers" (Insieme di parole chiave)