New, high-performance acenyl semiconductors

ORGN 402

Christopher P. Gerlach, Tommie W. Kelley, and Dawn V. Muyres. Corporate Research Materials Laboratory, 3M Co, 3M Center, Building 201-1N-34, St Paul, MN 55144-1000
Here we report on the synthesis, characterization, and device properties of new, high-performance thin film organic semiconductors. Due to its high field effect mobility (µ), pentacene has been the most studied material of this class the past few years. However, questions regarding the utility of pentacene-based devices center on long-term material and device stability, and the difficulty in making solution processable analogs. New organic semiconductors constructed using more oxidatively stable 2-anthracenyl and 2-tetracenyl fragments will be discussed. Hybrid acene-thiophene materials have shown particular utility due to ease of synthesis, purification, and modification. These new species have remarkable thermal stability for organics, in some cases not decomposing until > 500 °C. The usefulness of these new materials in the fabrication of thin film transistors with µ > 1 cm2/Vs is reported. In addition, the synthesis of soluble analogs will also be discussed.
 

Materials, Devices, and Switches
8:00 AM-12:00 PM, Wednesday, March 31, 2004 Anaheim Convention Center -- 303A, Oral

Division of Organic Chemistry

The 227th ACS National Meeting, Anaheim, CA, March 28-April 1, 2004