title: Flexible CMOS-Like Circuits Based on Printed P-Type and N-Type Carbon Nanotube Thin-Film Transistors.
abstract: P-type and n-type top-gate carbon nanotube thin-film transistors (TFTs) can be selectively and simultaneously fabricated on the same polyethylene terephthalate (PET) substrate by tuning the types of polymer-sorted semiconducting single-walled carbon nanotube (sc-SWCNT) inks, along with low temperature growth of HfO2thin films as shared dielectric layers. Both the p-type and n-type TFTs show good electrical properties with on/off ratio of ≈105, mobility of ≈15 cm2V-1s-1, and small hysteresis. Complementary metal oxide semiconductor (CMOS)-like logic gates and circuits based on as-prepared p-type and n-type TFTs have been achieved. Flexible CMOS-like inverters exhibit large noise margin of 84% at low voltage (1/2 Vdd= 1.5 V) and maximum voltage gain of 30 at Vddof 1.5 V and low power consumption of 0.1 μW. Both of the noise margin and voltage gain are one of the best values reported for flexible CMOS-like inverters at Vddless than 2 V. The printed CMOS-like inverters work well at 10 kHz with 2% voltage loss and delay time of ≈15 μs. A 3-stage ring oscillator has also been demonstrated on PET substrates and the oscillation frequency of 3.3 kHz at Vddof 1 V is achieved.
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.|School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China. jwzhao2011@sinano.ac.cn.
authors.forename: Jianwen
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.
authors.forename: Junyan
authors.initials: J
authors.lastname: Dou
authors.affiliation: Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 3058565, Japan.
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Tange
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.|School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Xu
authors.affiliation: Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, P. R. China.
authors.forename: Lixin
authors.initials: L
authors.lastname: Mo
authors.affiliation: School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Xie
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.
authors.forename: Wenya
authors.initials: W
authors.lastname: Xu
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.
authors.forename: Changqi
authors.initials: C
authors.lastname: Ma
authors.affiliation: CNT-Application Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 3058565, Japan.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Okazaki
authors.affiliation: Printable Electronics Research Centre, Suzhou Institute of Nanotech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China. zcui2009@sinano.ac.cn.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Cui
keywords: N-type; flexible; polymer-sorted; printed circuits; thin-film transistors