Organic Chemistry: Current Research
Open Access
ISSN: 2161-0401
+44 1478 350008
ISSN: 2161-0401
+44 1478 350008
Sureshraju Vegiraju and Chen Ming-Chou
National Central University, Taiwan
Posters & Accepted Abstracts: Organic Chem Curr Res
The conjugated organic materials have attracted much attention for the potential applications of organic field effect transistors (OFETs) in memory devices, smart cards, radio frequency identification tags, electronic papers, flexible displays and sensors due to their low cost process ability and high flexibility. Currently solution processible small molecular organic semiconductors are of great interest to develop high performance and ambient stable organic materials for OFETs. A versatile building blocks with efficient solubility is important in developing solution processible organic semiconductors in which alkyl chains are a fundamental units. The alkyl chain modifications such as changing in length, installing branched alkyl side chains and position of branching are important features in achieving better device performances, molecular packing, and intermolecular interactions. Dithieno[3,2-b:2', 3'-d]thiophene (DTT) unit has shown as one of promising building block of conjugated materials with p and n channel charge carrier nobilities. We have designed and synthesized a series of dialkyldithieno [3, 2-b:2', 3'-d]- thiophene based dicyanomethylene end capped quinoidal n-channel organic semiconductors with various alkyl chains (DTTQ-3, DTTQ-6, DTTQ-11 DTTQ-15). We have applied one pot synthetic route for the preparation of dialkyldithieno [3, 2-b:2', 3'-d]- thiophene. Among the synthesized quinoidal compounds DTTQ-11 has exhibited the electron mobility of 0.45 cm2 V-1 s-1. The single crystal x-ray diffraction of DTTQ-6 was determined and the charge transport in this packing structures can be achieved either through face-to-face parallel molecules in the same stack or through the well zip-zap connected neighboring molecules.
Email: suresh.vegiraju@gmail.com