TY - JOUR
T1 - Low operating voltage organic transistors and circuits with anodic titanium oxide and phosphonic acid self-assembled monolayer dielectrics
AU - Jinno, Hiroaki
AU - Yokota, Tomoyuki
AU - Matsuhisa, Naoji
AU - Kaltenbrunner, Martin
AU - Tachibana, Yutaro
AU - Someya, Takao
N1 - Funding Information:
The authors are indebted to Dr. Kenjiro Fukuda, Dr. Xu Xiaomin, and Professor Tsuyoshi Sekitani, for fruitful discussion. This work is financially supported by JST ERATO Someya Bio-Harmonized Electronics Project.
Publisher Copyright:
© 2016 Elsevier B.V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - We fabricated organic thin-film transistors (OTFTs) with sub-1 V driving voltage enabled by a hybrid dielectric comprising high-k amorphous titanium oxide (TiOx) and a phosphonic acid self-assembled monolayer (SAM). The p-type OTFTs show a high on/off ratio (105), a near 0 V threshold voltage (−0.09 V), and a high mobility of 1.2 cm2/Vs when operated at 1 V. These OTFTs are readily employed in circuit applications, and we show pseudo-CMOS and CMOS inverters operating at 0.5 V as basic building blocks of low-voltage advanced organic logic circuits. We fabricate a five-stage CMOS ring oscillator that displays clear oscillation characteristics at a driving voltage of 0.5 V to highlight the potential of our hybrid dielectric for ultra-low-voltage integrated plastic circuitry.
AB - We fabricated organic thin-film transistors (OTFTs) with sub-1 V driving voltage enabled by a hybrid dielectric comprising high-k amorphous titanium oxide (TiOx) and a phosphonic acid self-assembled monolayer (SAM). The p-type OTFTs show a high on/off ratio (105), a near 0 V threshold voltage (−0.09 V), and a high mobility of 1.2 cm2/Vs when operated at 1 V. These OTFTs are readily employed in circuit applications, and we show pseudo-CMOS and CMOS inverters operating at 0.5 V as basic building blocks of low-voltage advanced organic logic circuits. We fabricate a five-stage CMOS ring oscillator that displays clear oscillation characteristics at a driving voltage of 0.5 V to highlight the potential of our hybrid dielectric for ultra-low-voltage integrated plastic circuitry.
KW - Low driving-voltage
KW - Organic thin-film transistors
KW - Ring oscillators
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U2 - 10.1016/j.orgel.2016.10.034
DO - 10.1016/j.orgel.2016.10.034
M3 - Article
AN - SCOPUS:84995961473
VL - 40
SP - 58
EP - 64
JO - Organic Electronics
JF - Organic Electronics
SN - 1566-1199
ER -