Photovoltaic performance of solid-state DSSCs sensitized with organic isophorone dyes: Effect of dye-loaded amount and dipole moment

被引：18

作者：

Liu, Bo ^{[1
,2
,3
]}

Li, Xiaoyan ^{[3
]}

Liu, Miaoyin ^{[4
]}

Ning, Zhijun ^{[1
,2
]}

Zhang, Qiong ^{[1
,2
]}

Li, Chen ^{[4
]}

Muellen, Klaus ^{[4
]}

Zhu, Weihong ^{[1
,2
]}

机构：

[1] E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China

[2] E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

[3] Hebei Normal Univ, Coll Chem & Mat Sci, Shijiazhuang 050016, Hebei, Peoples R China

[4] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

来源：

DYES AND PIGMENTS | 2012年 / 94卷 / 01期

关键词：

Solar cells; Solid-state; Organic sensitizers; Isophorone; Dye-loaded amount; Dipole moment; OPEN-CIRCUIT VOLTAGE; SOLAR-CELLS; RECOMBINATION; TIO2;

D O I：

10.1016/j.dyepig.2011.11.005

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two isophorone sensitizers (S4 and D-3) were utilized in solid-state dye-sensitized solar cells (DSSCs) using spiro-OMeTAD as hole-transporting material. The dye-loaded amount of D-3 was almost 1.5 times as that of 54 which lead to higher light harvesting efficiency than S4. Moreover, the larger dipole moment along the direction for D-3 could cause more negative charges located close to the TiO2 surface than that of S4, resulting in a larger conduction band (CB) upshift of TiO2 for D-3 which was beneficial to an increase of V-oc. Promising results sensitized by D-3 in solid-state DSSCs were achieved with a short-circuit photocurrent density (J(sc)) of 3.4 mA cm(-2), an open-circuit photovoltage (V-oc) of 760 mV, a fill factor (FF) of 0.71, and an overall efficiency (eta) of 1.92% while ruthenium dye N3 produced a eta of 2.55% under the same conditions (AM 1.5, 100 mW cm(-2)). (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：23 / 27

页数：5

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