Skip to Content
Merck

772410

PTB7

greener alternative

average Mw 80,000-200,000, PDI ≤3.0

Synonym(s):

Poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl})

Slide 1 of 1
Sign In to View Organizational & Contract Pricing.

Select a Size

100 MG

₪4,000.00

₪4,000.00

Please contact Customer Service for Availability
Request a Bulk Order

About This Item

Empirical Formula (Hill Notation):
(C41H53FO4S4)n
CAS Number:
1266549-31-8
NACRES:
NA.23
UNSPSC Code:
12352103

Key Documents

View All Documentation

Skip To

Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

PTB7, average Mw 80,000-200,000, PDI ≤3.0

description

Band gap: 1.84 eV

form

solid

mol wt

average Mw 80,000-200,000

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

solubility

chlorobenzene: soluble
chloroform: soluble
dichlorobenzene: soluble

λmax

680 nm (thin film)

orbital energy

HOMO -5.15 eV 
LUMO -3.31 eV 

Mw/Mn

2.4 +/- 0.6

PDI

≤3.0

greener alternative category

, Enabling

Quality Level

100

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
754005794333901099
PTB7 average Mw 80,000-200,000, PDI ≤3.0

Sigma-Aldrich

772410

PTB7

PCPDTBT average Mw 7,000-20,000

Sigma-Aldrich

754005

PCPDTBT

PTB7-Th

Sigma-Aldrich

794333

PTB7-Th

PBDB-T

Sigma-Aldrich

901099

PBDB-T

form

solid

form

solid

form

solid

form

powder

description

Band gap: 1.84 eV

description

Band gap: 1.75 eV

description

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

description

Band gap: 1.8 eV, Limited solubility in CHCl3

mol wt

average Mw 80,000-200,000

mol wt

average Mw 7,000-20,000

mol wt

>145,000

mol wt

Mw >50,000 by GPC (GPC standard: PS)

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

greener alternative product characteristics

-

greener alternative product characteristics

-

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

sustainability

-

sustainability

-

sustainability

Greener Alternative Product

solubility

chlorobenzene: soluble

solubility

-

solubility

chlorobenzene: soluble, dichlorobenzene: soluble

solubility

chlorobenzene: soluble, dichlorobenzene: soluble

Application

High-Efficiency Organic Solar Cells (OPVs)
OPV Device Structure: ITO/PEDOT:PSS/PTB7 :PC71BM/Ca/Al
  • JSC = 14.9 mA/cm2
  • VOC = 0.75 V
  • FF = 0.69
  • PCE = 7.4%
It is majorly used as an active layer that enhances the overall performance by increasing the light absorption and improving the electron mobility of polymeric solar cells (PSCs).[1][2][3][4]

General description

PTB7 is a semiconducting polymer used in organic photovoltaics with an energy efficiency of 9.15%. It can act as an electron donor with narrow optical band gaps and excellent π-π conjugation while forming a nanocomposite with fullerenes.[5][6]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product belongs to Enabling category of greener alternatives thus aligns with "Design for energy efficency". Hole transport organic materials allow perfect energy level alignment with the absorber layer and therefore efficient charge collection, are prone to degradation in ambient conditions.Click here for more information.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCV2515
MKCS5977
MKCN7177
MKCF6052
MKBT9891V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Highly efficient tandem polymer photovoltaic cells
Sista S, et al.
Advanced Materials, 22(3), 380-383 (2010)
Sylvia J Lou et al.
Journal of the American Chemical Society, 133(51), 20661-20663 (2011-12-01)
Processing additives are used in organic photovoltaic systems to optimize the active layer film morphology. However, the actual mechanism is not well understood. Using X-ray scattering techniques, we analyze the effects of an additive diiodooctane (DIO) on the aggregation of
For the bright future-bulk heterojunction polymer solar cells with power conversion efficiency of 7.4%.
Yongye Liang et al.
Advanced materials (Deerfield Beach, Fla.), 22(20), E135-E138 (2010-07-20)
Absolute measurement of domain composition and nanoscale size distribution explains performance in PTB7: PC71BM solar cells
Collins BA, et al.
Advanced Energy Materials, 3(1), 65-74 (2013)
Effect of Active Layer Thickness on the Performance of Polymer Solar Cells Based on a Highly Efficient Donor Material of PTB7-Th
Zang Y, et al.
The Journal of Physical Chemistry C, 122(29), 16532-16539 (2018)
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%.

Inverted Organic Photovoltaic Devices Using Zinc Oxide Nanocomposites as Electron Transporting Layer Materials

Organic photovoltaics (OPVs) represent a low-cost, lightweight, and scalable alternative to conventional solar cells. While significant progress has been made in the development of conventional bulk heterojunction cells, new approaches are required to achieve the performance and stability necessary to enable commercially successful OPVs.

Questions

Reviews

No rating value

Active Filters

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service