期刊
APPLIED PHYSICS LETTERS
卷 85, 期 17, 页码 3899-3901出版社
AMER INST PHYSICS
DOI: 10.1063/1.1812368
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We have performed a comparative study of rubrene single-crystal field-effect transistors fabricated using different materials as gate insulator. For all materials, highly reproducible device characteristics are obtained. The achieved reproducibility permits one to observe that the mobility of the charge carriers systematically decreases with increasing the dielectric constant of the gate insulator, the decrease being proportional to epsilon(-1). This finding demonstrates that the mobility of carriers in organic single-crystal field-effect transistors is an intrinsic property of the crystal/dielectric interface and that it does not only depend on the specific molecule used. (C) 2004 American Institute of Physics.
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