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

[11] Novel organic dyes containing bis-dimethylfluorenyl amino benzo[b]thiophene for highly efficient dye-sensitized solar cell [J].

Choi, Hyunbong ;

Lee, Jae Kwan ;

Song, Kihyung ;

Kang, Sang Ook ;

Ko, Jaejung .

TETRAHEDRON, 2007, 63 (15) :3115-3121

[12] Multistep electron transfer processes on dye co-sensitized nanocrystalline TiO2 films [J].

Clifford, JN ;

Palomares, E ;

Nazeeruddin, K ;

Thampi, R ;

Grätzel, M ;

Durrant, JR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (18) :5670-5671

[13] *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].

FORSTER, T .

ANNALEN DER PHYSIK, 1948, 2 (1-2) :55-75

[14] Molecular Design of Unsymmetrical Squaraine Dyes for High Efficiency Conversion of Low Energy Photons into Electrons Using TiO2 Nanocrystalline Films [J].

Geiger, Thomas ;

Kuster, Simon ;

Yum, Jun-Ho ;

Moon, Soo-Jin ;

Nazeeruddin, Mohammad K. ;

Graetzel, Michael ;

Nueesch, Frank .

ADVANCED FUNCTIONAL MATERIALS, 2009, 19 (17) :2720-2727

[15] The advent of mesoscopic injection solar cells [J].

Graetzel, Michael .

PROGRESS IN PHOTOVOLTAICS, 2006, 14 (05) :429-442

[16] Dye-sensitized solar cells [J].

Grätzel, M .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS, 2003, 4 (02) :145-153

[17] LIGHT-INDUCED REDOX REACTIONS IN NANOCRYSTALLINE SYSTEMS [J].

HAGFELDT, A ;

GRATZEL, M .

CHEMICAL REVIEWS, 1995, 95 (01) :49-68

[18] Electron injection, recombination, and halide oxidation dynamics at dye-sensitized metal oxide interfaces [J].

Heimer, TA ;

Heilweil, EJ ;

Bignozzi, CA ;

Meyer, GJ .

JOURNAL OF PHYSICAL CHEMISTRY A, 2000, 104 (18) :4256-4262

[19] ENHANCEMENT OF PHOTOCURRENT AT A MEROCYANINE-COATED ELECTRODE DUE TO CHROMOPHORE AGGREGATION [J].

IRIYAMA, K ;

MIZUTANI, F ;

YOSHIURA, M .

CHEMISTRY LETTERS, 1980, (11) :1399-1402

[20] Synthesis and photovoltaic properties of efficient organic dyes containing the benzo[b]furan moiety for solar cells [J].

Jung, Il ;

Lee, Jae Kwan ;

Song, Kyu Ho ;

Song, Kihyung ;

Kang, Sang Ook ;

Ko, Jaejung .

JOURNAL OF ORGANIC CHEMISTRY, 2007, 72 (10) :3652-3658

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