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Merck

772380

DTS(FBTTh2)2

Synonym(s):

7,7′-[4,4-Bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]bis[6-fluoro-4-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazole], F-DTS, p-DTS(FBTTh2)2

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About This Item

Empirical Formula (Hill Notation):
C64H72F2N4S8Si
Molecular Weight:
1219.89
NACRES:
NA.23
PubChem Substance ID:
329767561
UNSPSC Code:
12352103
MDL number:
MFCD23704424

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InChI

1S/C64H72F2N4S8Si/c1-7-13-17-19-23-41-25-27-49(71-41)51-31-29-47(73-51)43-33-45(65)57(61-59(43)67-77-69-61)53-35-55-63(75-53)64-56(79(55,37-39(11-5)21-15-9-3)38-40(12-6)22-16-10-4)36-54(76-64)58-46(66)34-44(60-62(58)70-78-68-60)48-30-32-52(74-48)50-28-26-42(72-50)24-20-18-14-8-2/h25-36,39-40H,7-24,37-38H2,1-6H3

SMILES string

CCCCCCc1ccc(s1)-c2ccc(s2)-c3cc(F)c(-c4cc5c(s4)-c6sc(cc6[Si]5(CC(CC)CCCC)CC(CC)CCCC)-c7c(F)cc(-c8ccc(s8)-c9ccc(CCCCCC)s9)c%10nsnc7%10)c%11nsnc3%11

InChI key

LNMKMESEJYZMDZ-UHFFFAOYSA-N

form

solid

solubility

chlorobenzene: 0.3-0.5% at 80 °C
dichlorobenzene: 0.3-0.5% at 80 °C
chloroform: soluble(lit.)
dichlorobenzene: soluble(lit.)

λmax

590 nm in chloroform

Application

DTS(FBTTh2)2 can be used as a conjugating polymer that forms a donor-acceptor system with acceptor molecules such as perylene diimide, PC71BM and other fullerenes for the fabrication of bulk-heterojunction based solar cells.
Narrow band gap material for high-efficiency organic solar cells (OPVs) application
OPV Device Structure: ITO/MoOx/DTS(PTTh2)2: PC70BM/Al
  • JSC = 12.8 mA/cm2
  • VOC = 0.81 V
  • FF = 0.68
  • PCE = 7.0%

General description

DTS(FBTTh2)2 is a conductive polymer that can be used as a donor molecule. It has a narrow band gap and shows a maximum power conversion efficiency of 7.0%. Its photostability is more than that of P3HT.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS0493
MKBT2651V
MKBR8016V
MKBN2630V

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Effects of Solvent Additives on Morphology, Charge Generation, Transport, and Recombination in Solution-Processed Small-Molecule Solar Cells
Kyaw AKK, et al.
Advanced Energy Materials, 4(7), 1301469-1301469 (2014)
A High-Performing Solution-Processed Small Molecule: Perylene Diimide Bulk Heterojunction Solar Cell
Sharenko A, et al.
Advanced Materials, 25(32), 4403-4406 (2013)
Relationship between photostability and nanostructures in DTS (FBTTh2) 2: fullerene bulk-heterojunction films
Yamane S, et al.
Solar Energy Materials and Solar Cells, 151, 96-101 (2016)
Enhanced Efficiency Parameters of Solution-Processable Small-Molecule Solar Cells Depending on ITO Sheet Resistance
Wang DH, et al.
Advanced Energy Materials, 3(9), 1161-1165 (2013)
Barium: an efficient cathode layer for bulk-heterojunction solar cells
Gupta V, et al.
Scientific reports, 3, 1965-1965 (2013)
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Articles

Development of Small Molecule Donors for Solution-Processed Organic Solar Cells

Solution-processed organic photovoltaic devices (OPVs) have emerged as a promising clean energy generating technology due to their ease of fabrication, potential to enable low-cost manufacturing via printing or coating techniques, and ability to be incorporated onto light weight, flexible substrates.

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