248954-04-3

Upstream product

• 1016-05-3 dibenzothiophene sulfone 
• 132-65-0 dibenzothiophene 
• 83834-10-0 3,7-dibromodibromodibenzo[b,d]thiophene 
• 126218-83-5 1-bromo-2-(methylsulfinyl)benzene 
• 1378383-16-4 3,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)dibenzo[b,d]thiophene 
• 19614-16-5 2-bromo-1-(methylsulfanyl)benzene 
• 83834-12-2 3,7-dibromo-dibenzothiophene-5,5-dioxide 

Relevant academic research and scientific papers

Dibenzothienobisbenzothiophene - A novel fused-ring oligomer with high field-effect mobility

Conjugated oligomers with rigid, fused-ring structure are of interest for organic field-effect transistors where strong π-π interaction between adjacent molecules is required to obtain high charge carrier mobilities. Dibenzo[b,b']thieno[2,3-f:5,4-f']bis[1]benzothiophene (DBTBT) has been synthesized by a novel route, the key step of which is the acid-induced intramolecular cyclization reaction of aromatic methyl sulfoxides. Field- effect transistors (FETs) with thin, polycrystalline DBTBT films deposited by vacuum sublimation exhibit high field-effect mobilities of 0.15 cm2 (Vs)-1 and ON-OFF current ratios > 106. The coupling reaction is not regioselective and different regioisomers have been identified. Degraded FET performance is observed when the sublimed films contain a mixture of different isomers.

Double-(S, S - dioxo - dibenzo thiophene) and high output compound and its preparation method and application

The invention discloses a bi(S,S-dioxo-dibenzothiophene) five-membered ring compound and a preparation method and application thereof. The existence of bi-sulfuryl in the bi(S,S-dioxo-dibenzothiophene) five-membered ring compound is more beneficial for improving the electron affinity of molecules. Alkyl chains are introduced on a five-membered ring, so that the solubility of monomers in an organic solvent can be obviously improved. The plane conjugacy of the compound is better, and is beneficial for the transmission of a current carrier. Higher D-A mutual effect existing in the molecules of the compound endows higher fluorescence of the material. The bi(S,S-dioxo-dibenzothiophene) five-membered ring compound is synthesized and obtained through common organic chemistry reactions such as substitution reactions, Suzuki coupling and ring-closure reactions and oxidation reactions. The compound has good solubility in the organic solvent, and is suitable for solution processing. The compound has wide application prospects in the fields of organic luminescence display, organic photovoltaic cells and organic field-effect tubes.