Control of Electronic Properties of Organic Semiconductor

Abstract:

The electronic properties of organic field effect transistors limit the efficiency of integrated circuits build on basis of printed organic semiconductors. In order to control the mobility of high efficient semiconductors, like rubrene, tetracene, tetracyanoquinodimethane (TCNQ), copper phthalocyanine and many others, single-crystal field-effect transistors have been prepared on surfaces of single crystals and characteristics have been measured. The highest mobility has been measured on rubrene single crystals. The mobility of as-grown crystals measured by air-gap field effect transistor is in the range of 10 cm²/Vs but falls below 1 cm²/Vs during reduction. It was observed that the measured mobility depends on the dielectric used for field effect transistors.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 725-728
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.725
• Online since: July 2011
• Authors: Ke Jie Tan, Ke Ke Zhang, Shu Qin Liang, Wai Hoong Kan, Subodh G Mhaisalkar, Christian Kloc
• Keywords: Mobility, Organic Semiconductor, Oxidisation, Reduction, Rubrene, Single Crystal, Surface, Transistor

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