CNT inks for printed electronics

Aerosol Inks

Brewer Science CNT-based aerosol inks are formulated for compatibility with Optomec’s Aerosol Jet® printer. Materials are designed for transparent conductive, conductive trace, sensor, and interconnect applications. These surfactant-free CNT inks are designed by Brewer Science for low-temperature application on plastic substrates. These inks can be used with a broad range of substrates such as paper, printed circuit boards, ceramic, glass, and silicon. The use of our inks with Optomec Aerosol Jet® technology is ideal for quick prototyping of devices with direct transfer to large-scale production systems.

Key Features:

  • Surfactant-free materials, no added rinse step required to achieve performance
  • Low-temperature cure, typically < 150°C, to provide compatibility with printed electronics substrates
  • Inks stable at room temperature to minimize transportation and inventory control requirements
  • CNT fabric, no polymer binders
  • Transparent conductive films, sheet resistance of 450 Ω/sq at 85%T (transparency) and 650 Ω/sq at 90%T at 550 nm
  • Conductive trace films, sheet resistance below 53 Ω/sq and conductivity performance to ~73,000 siemens/m
×

Drawdown-Bar Inks

Brewer Science CNT-based drawdown-bar materials are formulated for compatibility with a wide range of wire-wound Mayer rod coating systems. Materials are designed for transparent conductive and conductive area films. The material is a surfactant-free solution of CNTs in solvent designed by Brewer Science for low-temperature application on substrates such as plastic, paper, and glass. The system is ideal for large-area and high-speed film coatings.

Key Features:

  • Surfactant-free materials, no added rinse step required to achieve performance
  • Low-temperature cure, typically < 150°C, to provide compatibility with printed electronics substrates
  • Inks stable at room temperature to minimize transportation and inventory control requirements
  • CNT fabric, no polymer binders
  • Transparent conductive films, 825 Ω/sq at 85%T (transparency) and 5400 Ω/sq at 93%T at 550 nm
Conductive Carbon Nanotube–Based Drawdown-Bar Ink
×

Ink-Jet Inks

Brewer Science CNT-based ink-jet inks are formulated for compatibility with the FUJIFILM Dimatix DMP-2800 printer. Materials are designed for transparent conductive, conductive trace, sensor, and interconnect applications. The surfactant-free CNT solutions are designed by Brewer Science for low-temperature application on plastic substrates. These inks can also be used with a broad range of substrates such as paper, printed circuit boards, ceramic, glass, and silicon. The use of our inks with the DMP-2800 printer is ideal when fast turnaround is needed for prototyping devices and provides a path to directly transfer to large-scale commercial systems.

Key Features:

  • Surfactant-free materials, no added rinse step required to achieve performance
  • Low-temperature cure, typically < 150°C, to provide compatibility with printed electronics substrates
  • Inks stable at room temperature to minimize transportation and inventory control requirements
  • CNT fabric, no polymer binders
  • Transparent conductive films, sheet resistance of 550 Ω/sq at 85%T (transparency) and 980 Ω/sq at 90%T at 550 nm
  • Conductive trace films, sheet resistance as low as 150 Ω/sq and conductivity performance to ~24,000 siemens/m
Carbon Nanotube-Based Ink-Jet Inks
×

Screen-Printing Inks

Brewer Science CNT-based screen-printing inks are designed and formulated for compatibility with a broad range of screen-print systems and screen meshes. Materials are designed for transparent conductive, conductive trace, and interconnect applications. These surfactant-free CNT inks are in solvent and have been designed by Brewer Science for low-temperature application on plastic substrates. These conductive CNT-based screen-printing inks can also be used with a variety of substrates such as paper, printed circuit boards, ceramic, glass, and silicon. Systems are ideal for large-area and high-speed film and circuit printing.

Key Features:

  • Surfactant-free materials, no added rinse step required to achieve performance
  • Low-temperature cure, typically < 150°C, to provide compatibility with printed electronics substrates
  • Inks stable at room temperature to minimize transportation and inventory control requirements
  • CNT fabric, no polymer binders
  • Transparent conductive films, 1000 Ω/sq at 85%T (transparency) and 3000 Ω/sq at 90%T at 550 nm
  • Conductive trace films, sheet resistance as low as 1 Ω/sq with 3 passes, as low as 6 Ω/sq for a single pass
×

Semiconducting Inks

Brewer Science semiconducting carbon nanotube (CNT) inks are specially formulated to be compatible with the following printing methods:

  1. Optomec Aerosol Jet® printing
  2. Spray coating

These experimental materials are designed for printed electronics applications such as printing CNT-based transistors, memory cells, and other advanced electronic devices.

CNTRENE® 4010 Series material features:

  • Research-grade CNT ink
  • Surfactant-free, fully aqueous dispersion – no additional rinse step is needed
  • Type-enriched to have a high percentage of semiconducting carbon nanotubes
  • No polymer binders, pure CNT fabric
  • Prototype CNT-based transistors show average ON/OFF ratio of >4000 and mobility of >0.2 cm2/V.s

Image of thin-film transistor electrodes with printed CNTs
Image of thin-film transistor electrodes with printed CNTs

Fluorescence spectrum of the semiconducting CNT ink
Fluorescence spectrum of the semiconducting CNT ink

Raman spectrum of the semiconducting CNT ink
Raman spectrum of the semiconducting CNT ink

Download Datasheet

×

Spray-Coating Inks

Brewer Science CNT-based spray-coating materials are formulated for compatibility with piezoelectric and aerosol spray systems. Materials are designed by Brewer Science for transparent conductive and conductive area films. These CNT inks may be used with stencils for patterning. Materials are surfactant-free aqueous CNT solutions and are designed for low-temperature application on plastic substrates. These inks can also be used with a wide range of other substrates such as paper, glass, ceramic, metals, and silicon.

Key Features:

  • Surfactant-free materials, no added rinse step required to achieve performance
  • Low-temperature cure, typically < 150°C, to provide compatibility with printed electronics substrates
  • Inks stable at room temperature to minimize transportation and inventory control requirements
  • CNT fabric, no polymer binders
  • Transparent conductive films, 300 Ω/sq at 85%T, 754 Ω/sq at 89%T, and 1520 Ω/sq at 93%T at 550 nm
Conductive Carbon Nanotube–Based Spray-Coating Inks
×

Printed electronics devices have been manufactured and used for several years in the printing of printed conductive traces, RFID tag antennas, conductive traces in flexible conductors, and several other applications.

Recently, much activity has involved printing functional devices such as batteries, displays, transistors, etc. The printing is done using various print methods including ink-jet, screen-printing, spray-coating, and other methods.

Some of the main drivers of these advanced printed electronics applications are

  • Lower cost of production
  • High-speed manufacturing
  • Simplified additive manufacturing
  • Flexible form factors
  • Large-area printing and manufacturing

Brewer Science supplies carbon nanotube inks to support several of the printing methods commonly used in the printed electronics market segment. These CNT inks are in a stable dispersion, have extended shelf life, and are available in formulations that are ready to use directly with the printing tool.