1179993-72-6

Basic information

• Product Name: 4,7-Bis(5-broMo-4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole
• Synonyms: 4,7-Bis(5-broMo-4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole;4,7-Bis(5-bromo-4-dodecyl-2-thienyl)-2,1,3-benzothiadiazole
• CAS NO: 1179993-72-6
• Molecular Formula: C38H54Br2N2S3
• Molecular Weight: 794.85176
• Mol File: 1179993-72-6.mol
• Article Data: 4

Chemical Properties

• Appearance: /
• Storage Temp.: 2-8°C
• CAS DataBase Reference: 4,7-Bis(5-broMo-4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole(CAS DataBase Reference)
• NIST Chemistry Reference: 4,7-Bis(5-broMo-4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole(1179993-72-6)
• EPA Substance Registry System: 4,7-Bis(5-broMo-4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole(1179993-72-6)

Safety Data

• Hazardous Substances Data: 1179993-72-6(Hazardous Substances Data)

Usage

Uses

Polymers of 4,7-Bis(5-bromo-4-dodecylthiophen-2-yl)-2,1,3-benzothiadiazole are used in thin film transistors and polymer solar cells.

Upstream product

• 15155-41-6 4,7-dibromobenzo[c][1,2,5]thiadiazole 
• 139100-06-4 2-bromo-3-dodecylthiophene 
• 1173788-58-3 2-(4-dodecylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 1179993-71-5 4,7-bis(4-dodecylthiophen-2-yl)benzo[c][1,2,5]thiadiazole 

Relevant articles and documents

Impact of the alkyl side chains on the optoelectronic properties of a series of photovoltaic low-band-gap copolymers

The design of novel low-band-gap conjugated polymers with appropriate frontier orbital energy levels and good charge transport is needed to improve the conversion efficiency of organic photovoltaic devices. In this article, we describe the synthesis and structure-property relationships of a series of photovoltaic copolymers with a common conjugated backbone and differing solubilizing side chains. The copolymer optoelectronic properties and the related photovoltaic device performances are reported. Our results clearly show that the side chains have a major impact on the material and device properties. The electronic band gap can be varied by more than 0.3 eV, the charge mobilities by orders of magnitude, and the optimized fullerene content of photovoltaic devices by a factor of 4 by barely changing the side-chain positioning and/or by switching from linear to branched alkyl chains. A power conversion efficiency of 2.7% could be achieved with devices using the most promising polymer.

PROCESS FOR THE PREPARATION OF BENZOHETERO [ 1, 3 ] DIAZOLE COMPOUNDS DISUBSTITUTED WITH HETEROARYL GROUPS

Process for the preparation of a benzohetero- [1,3]diazole compound disubstituted with brominated heteroaryl groups which comprises reacting at least one dihalogenated benzohetero [1,3] diazole compound with at least one brominated heteroaryl compound. Said benzohetero [1,3] diazole compound disubstituted with brominated heteroaryl groups can be advantageously used in the synthesis of compounds useful in the construction of solar concentrators (LSCs - Luminescent Solar Concentrators ). Furthermore, said benzohetero [1,3] diazole compound disubstituted with brominated heteroaryl groups can be advantageously used in the synthesis of photoactive polymers useful in the construction of photovoltaic devices (or solar devices) such as, for example, photovoltaic cells (or solar cells), photovoltaic modules (or solar modules), on both rigid or flexible supports. Furthermore, said benzohetero [1,3] diazole compound disubstituted with brominated heteroaryl groups can be advantageously used as precursor of monomeric units in the synthesis of semiconductor polymers.