Flexible logic circuits based on top-gate thin film transistors with printed   semiconductor carbon nanotubes and top electrodes

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 印刷电子学部 > 崔铮团队

	Flexible logic circuits based on top-gate thin film transistors with printed semiconductor carbon nanotubes and top electrodes
	Gu, WB (顾唯兵); Cui, Z (崔铮)
刊名	NANOSCALE
	2014
卷号	6 期号:24 页码:14891-14897
关键词	LIGHT FABRICATION OXIDE
通讯作者	Zhao, JW (赵建文)
英文摘要	In this report printed thin film transistors and logic circuits on flexible substrates are reported. The top-gate thin film transistors were made of the sorted semiconducting single-walled carbon nanotubes (sc-SWCNTs) ink as channel material and printed silver lines as top electrodes and interconnect. 5 nm HfOx thin films pre-deposited on PET substrates by atomic layer deposition (ALD) act as the adhesion layers to significantly improve the immobilization efficiency of sc-SWCNTs and environmental stability. The immobilization mechanism was investigated in detail. The flexible partially-printed top-gate SWCNT TFTs display ambipolar characteristics with slightly strong p-type when using 50 nm HfOx thin films as dielectric layer, as well as the encapsulation layer by atomic layer deposition (ALD) at 120 degrees C. The hole mobility, on/off ratio and subthreshold swing (SS) are similar to 46.2 cm (2) V-1 s(-1), 10(5) and 109 mV per decade, respectively. Furthermore, partially- printed TFTs show small hysteresis, low operating voltage (2 V) and high stability in air. Flexible partially-printed inverters show good performance with voltage gain up to 33 with 1.25 V supply voltage, and can work at 10 kHz. The frequency of flexible partially-printed five-stage ring oscillators can reach 1.7 kHz at supply voltages of 2 V with per stage delay times of 58.8 mu s. This work paves a way to achieve printed SWCNT advanced logic circuits and systems on flexible substrates.
收录类别	SCI
语种	英语
公开日期	2015-02-03
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/1856]
专题	苏州纳米技术与纳米仿生研究所_印刷电子学部_崔铮团队
推荐引用方式 GB/T 7714	Gu, WB ,Cui, Z . Flexible logic circuits based on top-gate thin film transistors with printed semiconductor carbon nanotubes and top electrodes[J]. NANOSCALE,2014,6(24):14891-14897.
APA	Gu, WB ,&Cui, Z .(2014).Flexible logic circuits based on top-gate thin film transistors with printed semiconductor carbon nanotubes and top electrodes.NANOSCALE,6(24),14891-14897.
MLA	Gu, WB ,et al."Flexible logic circuits based on top-gate thin film transistors with printed semiconductor carbon nanotubes and top electrodes".NANOSCALE 6.24(2014):14891-14897.