Molecular engineering of panchromatic unsymmetrical squaraines for dye-sensitized solar cell applications

被引：66

作者：

Choi, Hyunbong ^{[1
]}

Kim, Jeum-Jong ^{[1
]}

Song, Kihyung ^{[2
]}

Ko, Jaejung ^{[1
]}

Nazeeruddin, Md. K. ^{[3
]}

Graetzel, Michael ^{[3
]}

机构：

[1] Korea Univ, Dept Adv Mat Chem, Jochiwon 339700, Chungnam, South Korea

[2] Korea Natl Univ Educ, Dept Chem, Cheongwon 363791, Chungbuk, South Korea

[3] Base Ecole Polytech Fed Lausanne, Fac Sci, LPI, Inst Sci & Ingenierie Chim, CH-1015 Lausanne, Switzerland

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 16期

关键词：

NANOCRYSTALLINE TIO2 FILMS; BIS-DIMETHYLFLUORENYL AMINO; EFFICIENT FAR-RED; ORGANIC SENSITIZERS; ENERGY-TRANSFER; CONVERSION EFFICIENCY; ELECTRON-INJECTION; HIGHLY EFFICIENT; ALKYL CHAIN; PHOTOSENSITIZATION;

D O I：

10.1039/b926863d

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 unsymmetrical squaraine dyes JK-64, JK-65, and JK-64Hx, containing a bulky spirobifluorene or hexyloxyphenyl unit are designed and synthesized. These sensitizers, when anchored onto a TiO(2) surface, exhibit decreased aggregation as well as enhanced unidirectional flow of electrons. Under standard global AM 1.5 solar conditions, an optimized JK-64Hx sensitized cell gave a short-circuit photocurrent density (J(sc)) of 12.82 mA cm(-2), an open-circuit voltage (V(oc)) of 0.54 V and a fill factor (ff) of 0.75, corresponding to an overall conversion efficiency (eta) of 5.20%.

引用

页码：3280 / 3286

页数：7

共 43 条

[41] Efficient far red sensitization of nanocrystalline TiO2 films by an unsymmetrical squaraine dye [J].

Yum, Jun-Ho ;

Walter, Pablo ;

Huber, Simon ;

Rentsch, Daniel ;

Geiger, Thomas ;

Nueesch, Frank ;

De Angelis, Filippo ;

Graetzel, Michael ;

Nazeeruddin, Mohammad K. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (34) :10320-+

[42] Photosensitization of nanocrystalline TiO2 electrodes by squarylium cyanine incorporated with a ruthenium bipyridyl complex [J].

Zhang, DS ;

Wang, WB ;

Liu, Y ;

Xiao, XR ;

Zhao, W ;

Zhang, BW ;

Cao, Y .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2000, 135 (2-3) :235-240

[43] Study on squarylium cyanine dyes for photoelectric conversion [J].

Zhao, W ;

Hou, YJ ;

Wang, XS ;

Zhang, BW ;

Cao, Y ;

Yang, R ;

Wang, WB ;

Xiao, XR .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1999, 58 (02) :173-183

← 1 2 3 4 5 →