Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

794333

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})

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

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

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.

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.

Storage Class Code

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
MKCL9983
MKCK7474
MKCJ2293
MKCD0661
MKBT2240V

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

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)
Fullerene derivative-doped zinc oxide nanofilm as the cathode of inverted polymer solar cells with low-bandgap polymer (PTB7-Th) for high performance.
Liao S, et al.
Advanced Materials, 25(34), 4766-4771 (2013)
High-performance ternary organic solar cells with thick active layer exceeding 11% efficiency.
Gasparini N, et al.
Energy & Environmental Science, 10(4), 885-892 (2017)
Interface design for high-efficiency non-fullerene polymer solar cells.
Sun C, et al.
Energy & Environmental Science, 10(8), 1784-1791 (2017)
View All Related Papers

Articles

Non-Fullerene Acceptors for Organic Photovoltaic Applications

The emerging organic photovoltaic (OPV) technology is very promising for low-cost solar energy production. OPV devices can be produced using high-throughput, large-volume printing methods on lightweight and flexible plastic substrates, making them easy to deploy and use in innovative ways.

Non-Fullerene Acceptors for Organic Photovoltaic Applications

The emerging organic photovoltaic (OPV) technology is very promising for low-cost solar energy production.

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%.

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