New organic dyes based on a dibenzofulvene bridge for highly efficient dye-sensitized solar cells

被引：16

作者：

Capodilupo, Agostina Lina ^{[1
]}

De Marco, Luisa ^{[3
]}

Fabiano, Eduardo ^{[1
,3
]}

Giannuzzi, Roberto ^{[3
]}

Scrascia, Angela ^{[1
]}

Clarlucci, Claudia ^{[1
]}

Corrente, Giuseppina Anna ^{[2
]}

Cipolla, Maria Pia ^{[3
]}

Gigli, Giuseppe ^{[1
,3
,4
]}

Ciccarella, Giuseppe ^{[1
,5
]}

机构：

[1] CNR, Ist Nanosci, NNL, I-73100 Lecce, Italy

[2] Univ Calabria, I-87036 Cosenza, Italy

[3] Fdn Ist Italiano Tecnol IIT, CBN, I-73010 Arnesano, Italy

[4] Univ Salento, Dipartimento Matemat & Fis Ennio De Giorgi, I-73100 Lecce, Italy

[5] Univ Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 34期

关键词：

D-PI-A; FLUORENE; ENERGY; CHARGE; CORE; PERFORMANCE; CONVERSION; MOLECULES; DESIGN; DONOR;

D O I：

10.1039/c4ta02161d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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-pi-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 J(sc) 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.

引用

收藏

页码：14181 / 14188

页数：8

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