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Merck
CN

728705

MK-2 Dye

95%

Synonym(s):

2-Cyano-3-[5′′′-(9-ethyl-9H-carbazol-3-yl)-3′,3′′,3′′′,4-tetra-n-hexyl-[2,2′,5′,2′′,5′′,2′′′]-quater thiophen-5-yl] acrylic acid, metal free solar cell dye

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About This Item

Empirical Formula (Hill Notation):
C58H70N2O2S4
CAS Number:
1037440-21-3
Molecular Weight:
955.45
NACRES:
NA.23
PubChem Substance ID:
329764420
UNSPSC Code:
12352103
MDL number:
MFCD17677356

Key Documents

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Product Name

MK-2 Dye, 95%

InChI

1S/C58H70N2O2S4/c1-6-11-15-19-25-40-34-52(63-50(40)38-45(39-59)58(61)62)55-43(27-21-17-13-8-3)36-54(65-55)57-44(28-22-18-14-9-4)37-53(66-57)56-42(26-20-16-12-7-2)35-51(64-56)41-31-32-49-47(33-41)46-29-23-24-30-48(46)60(49)10-5/h23-24,29-38H,6-22,25-28H2,1-5H3,(H,61,62)/b45-38+

SMILES string

CCCCCCc1cc(sc1\C=C(/C#N)C(O)=O)-c2sc(cc2CCCCCC)-c3sc(cc3CCCCCC)-c4sc(cc4CCCCCC)-c5ccc6n(CC)c7ccccc7c6c5

InChI key

FOELOZKDLHJOHT-XLDZHHEVSA-N

assay

95%

mp

181-185 °C

storage temp.

2-8°C

Application

Organic Dyes for Efficent and Stable Dye-Sensitized Solar Cells
MK-2 Dye is an alkyl functionalized dye which can be used in a variety of applications such as dye sensitized solar cells and photovoltaic cells.

General description

MK-2 Dye is an oligothiophene based organic dye that can be used as a photosensitizer. It has a tetrameric oligothiophene spacer with donor and acceptor units. It also shows a conversion efficiency of 8%.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBZ9177V
MKBX6562V
MKBV0465V
MKBV0467V
MKBN8679V

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Highly stable sensitizer dyes for dye-sensitized solar cells: role of the oligothiophene moiety
Katoh R, et al.
Energy & Environmental Science, 2(5), 542-546 (2009)
Alkyl-functionalized organic dyes for efficient molecular photovoltaics
Koumura N, et al.
Journal of the American Chemical Society, 128(44), 14256-14257 (2006)
Efficient Synthesis of a Regioregular Oligothiophene Photovoltaic Dye Molecule, MK-2, and Related Compounds: A Cooperative Hypervalent Iodine and Metal-Catalyzed Synthetic Route
Dohi T, et al.
Chemistry?A European Journal , 19(6), 2067-2075 (2013)
Stable Dye-Sensitized Solar Cell Electrolytes Based on Cobalt (II)/(III) Complexes of a Hexadentate Pyridyl Ligand
Kashif MK, et al.
Angewandte Chemie (International Edition in English), 125(21), 5637-5641 (2013)
Nagatoshi Koumura et al.
Journal of the American Chemical Society, 128(44), 14256-14257 (2006-11-02)
We designed and synthesized new alkyl-functionalized organic dyes, MK-1 and MK-2, for dye-sensitized solar cells (DSSCs). Based on the MK-2 dye, a high performance of efficiency (eta, 7.7%; short-circuit current density Jsc = 14.0 mA cm-2, open-circuit voltage Voc =
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