By NanoIntegris Technologies, Inc.
NanoIntegris has begun selling a complementary thin film transistor package. The materials package combines a new dielectric ink (XDI-DCS) developed at the XRCC with NanoIntegris' high purity, single-walled carbon nanotube ink (IsoSol-S100), to improve the overall performance of printed high-mobility p-type transistors. Compatibility between semiconducting and dielectric materials is critical for reliable processing and device performance. One of the challenges that have limited the implementation of single-walled carbon nanotube based thin film transistors is that they exhibit considerable hysteresis with a non-zero threshold voltage when exposed/operated in air ambient. This new materials package addresses performance issues when the XDI-DCS ink is used as a dielectric, and when further used as an encapsulant. Key to addressing issues such as hysteresis is the hydrophobic surface of the dielectric layer, which can eliminate water and mitigate charge trapping. Both materials have low viscosity, enabling spin coating, inkjet printing or aerosol deposition, and can be cured at or below 150 °C, making them compatible with the most popular low temperature substrate polyethylene terephthalate (PET). Further details: J. Lefebvre et al. Hysteresis free carbon nanotube thin film transistors comprising hydrophobic dielectrics. Appl. Phys. Lett. 107, 243301 (2015). Prices: 1121 XDI-DCS Dielectric Ink $160 10 g 1122 10g XDI-DCS Ink + 1mg IsoSol-S100 $775 1 Package Please view page 8 for the details of IsoSol-S100 semiconducting ink. Discounts are available for large size orders. Please contact our sales team for a special quote. Solution Characteristics: Metric IsoSol Semiconductor Xdi-dcs Dielectric Viscosity at 25 oC 18-22 cps 8-9 cps Surface Tension 25-30 mN/m 24-25 mN/m Solvent System organic organic Cure (thermal, air) 150 oC / 10 min 140 oC / 30 min Shelf Life up to 3 months up to 2 months Preferred Deposition Method Aerosol Spin-coating Thin Film Transistor Characteristics: Metric Value (in air) Value (encapsulated) Mobility 40 cm2/V/s > 6 cm2/V/s On/Off Ratio 1 x 104 1 x 102 Threshold Voltage 4 1 V 0 1 V Hysteresis 0.004 ± 0.03 V 0.004 ± 0.03 V Dielectric Constant 4 4 Dielectric Layer Thickness ~ 500 nm 530 nm
NanoIntegris Launches higher-performing Ultra High-Purity Single-Walled Nanotubes: IsoSol-S100 TM Raymor-NanoIntegris breaks a new barrier by becoming the world's first company to commercialize ultra high-purity, polymer-wrapped, semiconducting carbon nanotubes dispersed in organic solvents: IsoSol-S100 TM. This innovative product, offered in powder or solution form, is the first semiconducting single-walled carbon nanotube material on the market with purities exceeding 99.9%. IsoSol-S100 has the following properties: - Can be readily dispersed in a variety of organic solvents such as toluene and xylenes. - Polymer/nanotube ratio can be adjusted to less than a factor of four with nanotube concentrations 10X higher than our aqueous dispersions. - Displays a 50% greater shelf life, as compared to aqueous surfactant solutions. - Allows the production of printed transistors with current ON/OFF ratios on the order to 1.8×10 6 and mobilities on the order of 30 cm 2/(Vs) - Is perfectly-suited for commercial ink jet and aerosol jet printing. IsoSol-100 is based on an RF-plasma grown carbon nanotube source material supplied by Raymor Nanotech at industrial scale. The IsoSol-S100 solutions can be produced at far higher production capacity than density-gradient centrifugation (DGU) or chromatography-based production techniques and at a lower cost. The highly graphitized starting material and low sonication intensity utilized during the extraction process minimizes damage to the nanotubes, allowing the material to exhibit higher crystallinity and longer average lengths of 2µm, as compared to aqueous surfactant-wrapped nanotubes. The patent-pending polymer-wrapping technique used by Raymor-NanoIntegris was developed by the National Research Council Canada within the Printable Electronics Program. It takes advantage of the selective affinity of conjugated polymers for semiconducting carbon nanotubes and surmounts the capacity bottleneck presented by competing technologies. The IsoSol-S100 material is now available to the academic community and to leading companies working in the field of printed transistors, nanotube-based electronics, and sensors.
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Raw | <35% wt% | 0.8 – 1.2 | ~100 – 1,000 nm We currently offer our HiPco Raw nanotube products in two forms: Fluffy Powder and Wet Cake. Due to safety concerns with handling the extremely low-density raw material, the HiPco Raw product is provided as a wet cake for orders of greater than 5g unless otherwise requested. The wet cake is roughly 10wt% nanotubes. The remaining mass is a mixture of 10% ethanol and 90% water, which can be easily removed by thermal or centrifugal treatment. (e.g. 10.70g of wet cake will be provided for a 1g HiPco Raw SWNT order. Raw Fluffy Powder $615 Raw Wet Cake $680 Raw Dense Powder $700 Individual SWNT Diameter i~0.8 – 1.2 nm Individual SWNT Length ii~400 – 700 nm Color Black, Dark Grey Morphology Dry fibrous powder Raman G/D Ratio (532nm)Raw: 35 Catalyst Content<20 wt% (5 Atom%) as Fe Carbon Purity80 wt% (95 atom%) Carbon as SWCNT (TGA)65wt% Crystallinity (Raman Analysis)High Raman G/D ratio Average: ~25 Highest 95@532nm Excitation
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Purified | <15% wt% | 0.8 – 1.2 | ~100 – 1,000 nm All HiPco Purified and Super Purified products are offered as a dry, granular powder. Purified $900 Individual SWNT Diameter i~0.8 – 1.2 nm Individual SWNT Length ii~400 – 700 nm Color Black, Dark Grey Morphology Dry fibrous powder Raman G/D Ratio (532nm)Purified: 95 Catalyst Content<20 wt% (5 Atom%) as Fe Carbon Purity80 wt% (95 atom%) Carbon as SWCNT (TGA)65wt% Crystallinity (Raman Analysis)High Raman G/D ratio Average: ~25 Highest 95@532nm Excitation
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Super Purified | <5% wt% | 0.8 – 1.2 | ~100 – 1,000 nm All HiPco Purified and Super Purified products are offered as a dry, granular powder. Super Purified $2240 Individual SWNT Diameter i~0.8 – 1.2 nm Individual SWNT Length ii~400 – 700 nm Color Black, Dark Grey Morphology Dry fibrous powder Catalyst Content<20 wt% (5 Atom%) as Fe Carbon Purity80 wt% (95 atom%) Carbon as SWCNT (TGA)65wt% Crystallinity (Raman Analysis)High Raman G/D ratio Average: ~25 Highest 95@532nm Excitation Product Applications The use of NanoIntegris’ HiPco within scientific research has proven quite extensive. This small-diameter SWCNT material has found to be a valuable component for applications such as cancer therapy, battery electrode conductivity, electric field enhancement, thin film transistor creation, and gas sensors.
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