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Small-Subthreshold-Swing and Low-Voltage Flexible Organic Thin-Film Transistors Which Use HfLaO as the Gate Dielectric

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4 Author(s)
M. F. Chang ; Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu ; P. T. Lee ; S. P. McAlister ; Albert Chin

Pentacene organic thin-film transistors (OTFTs) with a high-kappa HfLaO dielectric were integrated onto flexible polyimide substrates. The pentacene OTFTs exhibited good performance, such as a low subthreshold swing of 0.13 V/decade and a threshold voltage of -1.25 V. The field-effect mobility was 0.13 cm2/Vmiddots at an operating voltage as low as only 2.5 V. These characteristics are attractive for high-switching-speed and low-power applications.

Published in:

IEEE Electron Device Letters  (Volume:30 ,  Issue: 2 )