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Sigma-Aldrich

PTB7-Th

Synonym(s):

PCE-10, Poly([2,6′-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophene]{3-fluoro-2[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl})

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About This Item

Linear Formula:
(C49H57FO2S6)n
CAS Number:
1469791-66-9
MDL number:
MFCD21363438
UNSPSC Code:
12352103
NACRES:
NA.23
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description

Band gap: 1.57 eV
Shiny, purple, fiber-like solid

form

solid

mol wt

>145,000

solubility

chlorobenzene: soluble
dichlorobenzene: soluble

Orbital energy

HOMO -5.38 eV 
LUMO -3.81 eV 

PDI

2.2

General description

Poly([2,6′-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophene]{3-fluoro-2[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) (PTB7-Th) is a semiconducting polymer with a narrow band gap of 1.59 eV and an absorption peak at 780 nm. The devices fabricated from PTB7-Th have been shown to have higher output voltage and short circuit current density than PTB7.[1]

Application

High-Efficiency Organic Solar Cells (OPVs)

OPV Device Structure: ITO/PEDOT:PSS/Polymer:PC71BM/ Al

  • JSC = 19.8 mA/cm2 \
  • VOC = 0.79 V
  • FF = 0.65
  • PCE = 10.12%
PTB7-Th is mainly used as an active layer in organic solar cells (OSCs). It forms a blend with different acceptor materials which include PC71BM, ICBA, and PCBM to potentially improve the power conversion efficiency (PCE) of the OSCs. [2][3][4][5][6][7]

Storage Class Code

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
MKCT7241
MKCT2931
MKCP4425
MKCR2528
MKCS6227

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Interface design for high-efficiency non-fullerene polymer solar cells.
Sun C, et al.
Energy & Environmental Science, 10(8), 1784-1791 (2017)
Single-junction polymer solar cells with high efficiency and photovoltage.
He Z, et al.
Nature Photonics, 9(3), 174-174 (2015)
Interfacial materials for organic solar cells: recent advances and perspectives.
Yin Z, et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 3(8), 1500362-1500362 (2016)
Single-junction polymer solar cells with over 10% efficiency by a novel two-dimensional donor-acceptor conjugated copolymer.
Liu C, et al.
ACS Applied Materials & Interfaces, 7(8), 4928-4935 (2015)
10.8% efficiency polymer solar cells based on PTB7-Th and PC71BM via binary solvent additives treatment.
Wan Q, et al.
Advances in Functional Materials, 26(36), 6635-6640 (2016)
View All Related Papers

Articles

Progress for High Performance Tandem Organic Solar Cells

Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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