All-Printed Thin-Film Transistor Based on Purified Single-Walled Carbon Nanotubes with Linear Response

Abstract

We report an all-printed thin-film transistor (TFT) on a polyimide substrate with linear transconductance response. The TFT is based on our purified single-walled carbon nanotube (SWCNT) solution that is primarily consists of semiconducting carbon nanotubes (CNTs) with low metal impurities. The all-printed TFT exhibits a high ON/OFF ratio of around 103and bias-independent transconductance over a certain gate bias range. Such bias-independent transconductance property is different from that of conventional metal-oxide-semiconductor field-effect transistors (MOSFETs) due to the special band structure and the one-dimensional (1D) quantum confined density of state (DOS) of CNTs. The bias-independent transconductance promises modulation linearity for analog electronics.

Construction of a Novel Magnetic Targeting Anti-Tumor Drug Delivery System: Cytosine Arabinoside-Loaded Bacterial Magnetosome

“…The BMs have been successfully used as vehicles for antitumor drug doxorubicin (DOX), the DOX-coupled BMs showed cytotoxicity to the cancer cells consistent with that of DOX [13]. In addition, through modifying the membrane surface of BMs with poly- l -glutamic acid, the drug loading was further increased [14]. Compared with artificial magnetic nanoparticles [15,16,17,18,19], BMs are natural magnetic nano-carriers with lipid biomembrane, which can be directly used as a drug carrier.…”

A Printable CNT-Based FM Passive Wireless Sensor Tag on a Flexible Substrate With Enhanced Sensitivity

“…The sensor can also detect a low NH 3 concentration level of 2.85 ppm (lowest detection level (LDL) in the experiment). The high sensitivity and the low LDL are attributed to the high purity and dense SWCNT networks with a large absorption area [3,21,3].…”

“…The high surface-to-volume ratio provides large surface areas for chemical absorption and thus offers high sensitivity for sensors, compared with other sensing materials [14,15]. CNTs can also be purified and made into single-walled CNT (SWCNT) suspensions with high semiconducting SWCNT concentrations [3]. The SWCNT suspensions allow one to make dense SWCNT networks on flexible or conformal surfaces through solution-casting or a direct-printing process.…”

“…The SWCNT is from Brewer Science Inc. (BSI) fabricated with a special purification process. The SWCNT was tested and showed a high semiconducting SWCNT concentration [3]. The printable SWCNT-based NH 3 sensor shows an enhanced sensitivity of 0.76% per part per million (ppm) primarily due to the large surface area of the SWCNT network.…”

Characterizations of PEDOT:PSS/SWCNT Organic Anodes

“…Single walled carbon nanotube are promising for various attractive applications [1,2]. Because of their potential for low cost and easy processing technologies, m-SWCNT electrodes and SWCNT composite materials are expected to be used as an alternative of ITO layers in optoelectronic components.…”