88537-32-0

Usage

Uses

Used in Organic Electronic Devices:
4-R-4H-Dithieno[3,2-b:2',3'-d]pyrrole is used as a key component in the development of organic thin-film transistors, organic photovoltaics, and organic light-emitting diodes. Its unique electronic and optical properties contribute to the performance and efficiency of these devices.
Used in Organic Solar Cells:
In the renewable energy industry, 4-R-4H-Dithieno[3,2-b:2',3'-d]pyrrole is utilized as a material for organic solar cells. Its properties allow for improved light absorption and charge transport, enhancing the overall efficiency of solar cell devices.
Used in Conductive Polymers:
4-R-4H-Dithieno[3,2-b:2',3'-d]pyrrole is employed as a component in the synthesis of conductive polymers. These polymers exhibit high electrical conductivity and are used in various applications, such as sensors, actuators, and electronic devices.
Used in Other Organic Electronic Applications:
4-R-4H-Dithieno[3,2-b:2',3'-d]pyrrole is also explored for its potential use in other organic electronic applications, including the development of new materials with tailored properties for specific electronic devices and systems. Its unique characteristics make it a valuable asset in the advancement of organic electronics.

Upstream product

• 82080-28-2 3-azido-2,2'-bithienyl 
• 51751-44-1 3,3'dibromo-2,2'-bithiophene 
• 55-21-0 benzamide 
• 619-80-7 4-nitrobenzamide 
• 34682-90-1 3-nitro-2,2′-bithiophene 
• 125143-53-5 3,3',5,5'-tetrabromo-2,2'-bithiophene 
• 492-97-7 2,2'-Bithiophene 

Downstream Products

• 1198162-87-6 4-(p-methoxyphenyl)-4H-dithieno[3,2-b:2’,3’-d]pyrrole 
• 1203585-46-9 2,6-dibromo-4-phenyl-4H-dithieno[3,2-b:2',3'-d]pyrraole 

Relevant academic research and scientific papers

Synthesis and characterization of donor-acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4: H -dithieno[3,2- b:2',3'- d] pyrrole for organic solar cells

In this study, new donor-acceptor (D-A) conjugated polymers based on 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2',3'-d]pyrrole (EPDP) and 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (BTBP) or 4,7-

Dithieno[3,2-b:2′,3′-d]pyrrole Cored p-Type Semiconductors Enabling 20 % Efficiency Dopant-Free Perovskite Solar Cells

Organic p-type semiconductors with tunable structures offer great opportunities for hybrid perovskite solar cells (PVSCs). We report herein two dithieno[3,2-b:2′,3′-d]pyrrole (DTP) cored molecular semiconductors prepared through π-conjugation extension and an N-alkylation strategy. The as-prepared conjugated molecules exhibit a highest occupied molecular orbital (HOMO) level of ?4.82 eV and a hole mobility up to 2.16×10?4 cm2 V?1 s?1. Together with excellent film-forming and over 99 % photoluminescence quenching efficiency on perovskite, the DTP based semiconductors work efficiently as hole-transporting materials (HTMs) for n-i-p structured PVSCs. Their dopant-free MA0.7FA0.3PbI2.85Br0.15 devices exhibit a power conversion efficiency over 20 %, representing one of the highest values for un-doped molecular HTMs based PVSCs. This work demonstrates the great potential of using a DTP core in designing efficient semiconductors for dopant-free PVSCs.

New methods for the synthesis of 4H-dithieno[3,2-b:2′,3′-d]pyrrole

Various alternative methods for the synthesis of 4H-dithieno[3,2-b:2′,3′-d]pyrrole (DTP) starting from commercially available bromothiophene precursors are presented. Crucial steps involve the Cadogan reaction, Ullmann-type C─N couplings, or Buchwald-Hartwig–type aminations to build up the central pyrrole ring of DTP, respectively. The use of ammonia surrogates afforded the fused target heteroacene in overall yields of 33% to 63%, and the corresponding methods are applicable on large scale.

Condensed compound and organic light emitting diode comprising the same

Provided are a condensed cyclic compound represented by chemical formula 1 and an organic electroluminescent device comprising the same. In the chemical formula 1, X, and R1 to R10 refer to the detailed description of the present invention. An organic light emitting device having an organic layer comprising the condensed cyclic compound has properties of low driving voltage, high light emitting efficiency and long lifespan.COPYRIGHT KIPO 2016

Thermal Decomposition of o-Azidobithienyls

Thermal decomposition of the six possible o-azidobithienyls (1)-(6) has been investigated as a possible source of the hitherto unknown dithienopyrrole ring system.It was found that the nature and yield of products and the temperature required for decomposition are strongly dependent on the structure of the starting azides. 3-Azido-2,2'-bithienyl (1) and 3-azido-2,3'-bithienyl (2) gave 4H-dithienopyrrole (7) and 4H-dithienopyrrole (8), respectively, in very good yields. 4-Azido-3,3'-dithienyl (3) and 4-azido-2',3-bithienyl (4) were relatively stable under the same conditions, but polymer ic materials were obtained when the thermal decomposition was performed under more vigorous conditions.By contrast, 2-azido-3,3'-bithienyl (5) and 2-azido-2',3-bithienyl (6) extrude nitrogen at room temperature resulting in ring-opening fragmentation.Thermolysis of 3-azido-2-cyclohex-1-enylthiophen (11) and 4-azido-3-cyclohex-1-enylthiophen (12) were also investigated to elucidate the different behavioural patterns exhibited by the 3-azidothienyl derivatives.