Skip to Content
Merck
All Photos(1)

Documents

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

Related Categories

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

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

Visit the Document Library

Interface design for high-efficiency non-fullerene polymer solar cells.
Sun C, et al.
Energy & Environmental Science, 10(8), 1784-1791 (2017)
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 high efficiency and photovoltage.
He Z, et al.
Nature Photonics, 9(3), 174-174 (2015)
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)
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%.

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