UT Dots, Inc.
Conductive Nanoinks
Our Products

Our nanoinks are best suited to work with the aerosol jet printers produced by Optomec, Inc.  To learn more about their technology and products, please visit: www.optomec.com
UT Dots inks can be use for ink-jet printing. Please visit
MicroFab Technologies: www.microfab.com
MicroDrop Technologies: www.microdrop.de
SonoPlot, Inc.: www.sonoplot.com

UTDAg Conductive Silver Nanoinks


UTDAg silver nanoink is general-use ink for aerosol or ink-jet printing on variety of substrates. UTDAg is based on silver nanoparticles with average size around 10 nm and dispersed in a liquid vehicle. Since they are surface stabilized, UTDAg inks are highly soluble in nonpolar organic solvents and stable under atmospheric conditions at room temperature. 

 

Key Ink Properties

 

Particle Size

~ 10 nm

Silver Concentration

~ 25 - 60 wt%

Solvent

Hydrocarbon

Viscosity (can be controlled)

1 - 30 cP

Shelf Life

>3 months at room temperature

 

Silver nanoparticles have a low sintering temperature and can be used on inexpensive substrates, such as paper, polyester, polyimide and others. The resistivity of UTDAg ink decreases with time at required temperatures.

 

Key Performance Data

 

Curing Temperature

120 – 300 oC

Resistivity, curing at 175 oC, 10 min

~3 mW-cm 

Resistivity, curing at 120 oC, 60 min

~10 mW-cm 

Printable Material

PET, Polyimide, ITO, Glass, Teslin, Silicon, many others

 

UTDAu Conductive Gold Nanoinks 

 

UTDAu gold nanoink is general-use ink for aerosol or ink-jet printing on variety of substrates. UTDAu is based on gold nanoparticles with average size around 4 nm and dispersed in a liquid vehicle. Since they are surface stabilized, UTDAu inks are highly soluble in nonpolar organic solvents and stable under atmospheric conditions at room temperature. 

 

Key Ink Properties

 

Particle Size

~ 3 - 5 nm

Gold Concentration

~ 25 – 60 wt%

Solvent

Hydrocarbon

Viscosity (can be adjusted for specific application by addition of cosolvent) 

1 - 30 cP

Shelf Life

3 months at room temperature

 Gold nanoparticles have a low sintering temperature and can be printed on ITO and glass substrates. The resistivity of UTDAu40 ink decreases with time at required temperatures.

 

Key Performance Data

 

Curing Temperature

> 190 oC

Resistivity

2 - 10 x of bulk gold  

Printable Material

Polyimide, ITO, Glass, many others

 

 




LIST OF PRODUCTS


Part Number

Item:  Description and Specifications

Recommended Deposition method

Concentration, w/v%

Recommended Substrates

Minimum Curing temperature

UTDAg40X

Silver nanoink in xylenes

Aerosol-Jet (UA1)

25 - 40w/v% 3

PET

~100-120C

UTDAg40IJ

Silver  nanoink  in solvent mixture

Ink-Jet: Microfab, MicroDrop, SonoPlot, and others

~55-60w/v%

Kapton, Silicon, PC, Stainless steel

~130C

UTDAg40IJ2

Silver  nanoink  in solvent

Ink-Jet: Microfab, MicroDrop, SonoPlot, and others

~55-60w/v%

PET

~130C

UTDAg40TE

Silver  nanoink  in solvent mixture

Aerosol-Jet (UA), SonoPlot

25 - 40w/v%

Kapton,  Silicon, PC, Stainless steel

~120C

UTDAgPA1

Silver  nanoink  in solvent mixture

Aerosol-Jet (PA2), SonoPlot

~ 100w/v%

Kapton,  Silicon, PC, Stainless steel

~140C

Comments:

1  UA – Ultrasonic Atomizer

2   PA – Pneumatic Atomizer

3   Inks can be prepared with different concentration upon request. Typical concentrations are given in the Table above.

Gold nanoinks are formulated in the same solvents or solvent mixtures as silver nanoinks.  Minimum curing temperature for gold nanoinks: 190-200 C. Au-inks can be prepared with curing temperature 150 C upon request.

Platinum nanoinks are formulated for Aerosol-Jet, UA in xylenes or TE solvent. Minimum curing temperature is ~ 200-250 C. Pt ink can also be printed with MicroDrop, MicroFab printers or SonoPlot micro plotter in TE solvent.
All inks can be printed on glass. To improve adhesion to glass and other polar surfaces we provide an additive -  adhesion promoter. 


Please contact us for prices, quantities, and solvent specifications.
 

High Quality Nanoparticles for the Growing Nanotechnology Industry