1439937-07-1 Usage
Description
1,3-bis(5-bromo-4-(2-ethylhexyl)thiophen-2-yl)-5,7-bis(2-ethylhexyl)benzo[1,2-c:4,5-c']dithiophene-4,8-dione, also known as Benzodithiophene-2THBr-4EH, is a monomer used in the synthesis of low band-gap polymer semiconductors such as PBDD4T and PBDD4T-2F. It is characterized by its unique molecular structure, which contributes to its electronic properties and potential applications in various industries.
Uses
Used in Organic Photovoltaic (OPV) Applications:
Benzodithiophene-2THBr-4EH is used as a monomer for the synthesis of polymer semiconductors in the OPV industry. Its application reason is due to its ability to contribute to the creation of low band-gap polymers, which are essential for improving the efficiency of solar cells, both fullerene-based and fullerene-free.
Used in Tandem Organic Solar Cells:
In the field of tandem organic solar cells, Benzodithiophene-2THBr-4EH is used as a monomer for the synthesis of polymer semiconductors. The application reason is its potential to enhance the overall performance and efficiency of tandem solar cells by optimizing the absorption of sunlight and improving charge transport.
Used in Organic Field-Effect Transistors (OFETs):
Benzodithiophene-2THBr-4EH is also used as a monomer in the synthesis of polymer semiconductors for OFETs. The application reason is its contribution to the development of high-performance organic semiconductor materials, which can improve the electrical properties and overall performance of OFETs in various electronic applications.
Check Digit Verification of cas no
The CAS Registry Mumber 1439937-07-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,9,9,3 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1439937-07:
(9*1)+(8*4)+(7*3)+(6*9)+(5*9)+(4*3)+(3*7)+(2*0)+(1*7)=201
201 % 10 = 1
So 1439937-07-1 is a valid CAS Registry Number.
1439937-07-1Relevant articles and documents
A Fluorinated Polythiophene Derivative with Stabilized Backbone Conformation for Highly Efficient Fullerene and Non-Fullerene Polymer Solar Cells
Zhang, Shaoqing,Qin, Yunpeng,Uddin, Mohammad Afsar,Jang, Bomee,Zhao, Wenchao,Liu, Delong,Woo, Han Young,Hou, Jianhui
, p. 2993 - 3000 (2016/05/24)
Here, taking a polythiophene derivative (PBDD4T) as a starting polymer, we tried to increase the rotation barrier and hence stabilize its backbone conformation by introducing fluorine into the β- and β′-position of the α-linked bithiophene segments and then synthesized a new polymer named as PBDD4T-2F. Our results demonstrate that the rotation barrier between the α-linked bithiophene significantly increases after the fluorination, so PBDD4T-2F has a more stable backbone conformation than PBDD4T. Compared to PBDD4T, PBDD4T-2F shows stronger aggregation effect in solution state and more compact π-π stacking in solid thin film and also possesses deeper HOMO level. These properties make PBDD4T-2F being an ideal donor material in PSCs. When blended with PC71BM, a fullerene acceptor, the PBDD4T-2F-based device showed a power conversion efficiency (PCE) of 9.04%, which is 38% higher than that of the PBDD4T-based device; when blended with ITIC, a non-fullerene acceptor, the PBDD4T-2F-based device showed a PCE of 8.69%, which is almost 20 times higher than that of the PBDD4T-based device. What is more, the tandem cell, in which the blend of PBDD4T-2F:PC61BM was used for making the front subcell, exhibited a high PCE of 10.12%. The photovoltaic results indicate that the fluorination is an effective method to enhance interchain π-π interaction for the polythiophene and hence to tune its photovoltaic properties in PSCs, especially for the fullerene-free device based on ITIC.
