Journal
IEEE ELECTRON DEVICE LETTERS
Volume 40, Issue 2, Pages 236-239Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2018.2890618
Keywords
Gelatin; pentacene; paper; solution process; organic thin-film transistor (OTFT)
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Funding
- National Science Council of Taiwan [NSC102-2221-E-006-182-MY3, NSC 105-2221-E-006-193-MY3]
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Paper-basedpentacene organic thin-film transistors (OTFTs) with spin-coated gelatin (G) stacked gate dielectric layers, the Au/pentacene/G/G matrix-embedded iron (FeG)/Al/paper structure, were fabricated. The proposed composite-stacked bio-dielectric layer can be implemented using solutions with the degradable biomaterials. These materials enable a large-area printing of use-and-throw devices. Control devices (Au/pentacene/G/Al and Au/pentacene/FeG/Al structure) were also fabricated for comparison. High-performance paper-based OTFT constructed from the stacked gate dielectric layer exhibited a carrier mobility of 8 cm(2)/Vs, an ON/OFF current ratio of approximately 10(3), a subthreshold swing of 0.6 V/decade, and a threshold voltage of - 1.4 V. These results are compatible to those OTFTs fabricated on other substrates. Therefore, the emerging biomaterial-based transistors on paper substrates may help in developing low-cost, environment-friendly devices.
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