ORGN 761 |
| Pentacene has been a benchmark for organic conjugated materials in organic electronics due to its good thin film forming ability and hence higher thin film hole mobility. However, drawbacks like herringbone packing (minimal pi-face interactions), oxidative degradation in air and poor solubility in common organic solvents of this premier molecule have limited its device applications. Many research groups have attempted to tackle these problems. Earlier, our group overcame these problems by introducing trialkylsilyl ethynyl groups on the 6 and 13 positions of pentacene. Applying this approach to anthradithiophene also gave us materials with excellent electronic properties. This project is focused on improving physical and electronic properties of anthradithiophenes by careful substitution such as to improve photo stability, to decrease the HOMO-LUMO energy levels gap (band gap), to increase amount of pi-face interactions between the neighboring molecules for applications in organic thin film transistors (OTFTs) and organic photovoltaics (OPVs).
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Total Synthesis, Materials, Molecular Recognition, Process R&D, and Physical Organic Chemistry
8:00 PM-10:00 PM, Wednesday, 13 September 2006 Moscone Center -- Hall D, Poster
Division of Organic Chemistry |
