1293389-31-7

Basic information

• Product Name: 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole
• Synonyms: 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole;IN1565, 5,6-Difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole
• CAS NO: 1293389-31-7
• Molecular Formula: C₃₀H₃₆Br₂F₂N₂S₃
• Molecular Weight: 718.6200464
• EINECS: -0
• Mol File: 1293389-31-7.mol
• Article Data: 7

Chemical Properties

• Boiling Point: 646.3±50.0 °C(Predicted)
• Appearance: /
• Density: 1.397±0.06 g/cm3(Predicted)
• PKA: -3.37±0.50(Predicted)
• CAS DataBase Reference: 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole(1293389-31-7)
• EPA Substance Registry System: 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole(1293389-31-7)

Safety Data

• Hazardous Substances Data: 1293389-31-7(Hazardous Substances Data)

Usage

General Description

5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole is a complex chemical compound that is commonly used in the production of organic electronic devices, such as organic photovoltaics and organic light-emitting diodes. It belongs to the class of benzothiadiazole derivatives and is known for its high electron affinity and good charge transport properties, making it suitable for use in various electronic applications. 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole exhibits strong light-absorption properties in the visible spectrum and has been studied for its potential as a semiconductor material in optoelectronic devices. Due to its unique chemical structure and properties, 5,6-difluoro-4,7-bis-(5-bromo-4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole holds promise for further research and development in the field of organic electronics.

Upstream product

• 886746-54-9 tributyl-[4-(2-ethyl-hexyl)-thiophen-2-yl]-stannane 
• 1295502-53-2 4,7-dibromo-5,6-difluorobenzo[c]^1,2,5thiadiazole 
• 1254834-11-1 (4-(2-ethylhexyl)thiophen-2-yl)-trimethylstannane 
• 1293389-29-3 5,6-difluoro-4,7-diiodo-benzo [c] [1,2,5] thiadiazole 
• 76179-40-3 2-amino-4,5-difluoroaniline 
• 78056-39-0 4,5-difluoro-2-nitroaniline 
• 1293389-30-6 5,6-difluoro-4,7-bis-(4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole 
• 1293389-28-2 5,6‐difluoro‐2,1,3‐benzothiadiazole 
• 303734-52-3 2-bromo-3-(2-ethylhexyl)-thiophene 

Relevant articles and documents

An efficient strategy to supervise absorption, mobility, morphology of photovoltaic molecule by inserting a D-A unit

The absorption, mobility and morphology of molecules in the active layer have a crucial influence on photovoltaic properties of organic solar cells. In this work, we design an A1-(D-A)2-D-A1 type oligomer DRCN4FBT on the basis of an A1-D-A-D-A1 type small molecule DRCN2FBT by inserting D-A unit. It is found that oligomer DRCN4FBT exhibits wider absorption spectrum and higher carrier mobility and better morphology than small molecule DRCN2FBT in active layer using fullerene PC71BM as acceptor. The absorption and energy level, mobility, morphology of DRCN4FBT in active layer are well supervised by inserting D-A unit in DRCN2FBT. As a result, its power conversion efficiency and short current density are increased by about 20% for the DRCN4FBT/PC71BM based organic solar cells in comparison with the DRCN2FBT/PC71BM based devices. It indicates that simply increasing D-A unit in small molecules to construct oligomer is an efficient strategy to improve photovoltaic properties.

Novel donor-acceptor polymers containing: O -fluoro- p -alkoxyphenyl-substituted benzo[1,2- b:4,5- b ′]dithiophene units for polymer solar cells with power conversion efficiency exceeding 9%

In this work, a new electron-rich building block, o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b′]dithiophene (BDT) unit, has been used to construct donor (D)-acceptor (A) conjugated copolymers with electron-deficient units 5,6-difluoro-4,7-di(4-(2

Two-dimensionally extended π-conjugation of donor-acceptor copolymers via oligothienyl side chains for efficient polymer solar cells

A series of two-dimensional conjugated polymers containing π-conjugated oligothienyl side chains, namely PBDT2FBT-T1, PBDT2FBT-T2, PBDT2FBT-T3, and PBDT2FBT-T4, was designed and synthesized to investigate the effect of two-dimensionally extended π-conjugation on the polymer solar cell (PSC) performance. The oligothienyl units introduced into the side chains significantly affect the optoelectronic properties of the parent polymers as well as the performances of the resulting solar cell devices by altering the molecular arrangement and packing, crystalline behavior, and microstructure of the polymer:PC71BM blend films. The crystallinity and blend morphology of the polymers can be systematically controlled by tuning the π-conjugation length of side chains; PBDT2FBT-T3 exhibited the most extended UV/vis light absorption band and the highest charge mobility, leading to a high short-circuit current density up to 12.5 mA cm-2 in the relevant PSCs. The PBDT2FBT-T3:PC71BM-based PSC exhibited the best power conversion efficiency of 6.48% among this series of polymers prepared without the use of processing additives or post-treatments. These results provide a new possibility and valuable insight into the development of efficient medium-bandgap polymers for use in organic solar cells.