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907669

Sigma-Aldrich

Silver ink

75 wt%, LIFT printable

Synonym(s):

Ag ink, Laser induced forward transfer

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About This Item

Linear Formula:
Ag
UNSPSC Code:
12352103
NACRES:
NA.23

description

Silver content : 75 wt%
Solvent : Diethylene Glycol Mono Butyl Ether (DGBE)
Surface Tension : 28 dyn/cm (Pendant Drop)

form

paste

particle size

50-70 nm (by Lumisizer™)
90-120 nm (by Lumisizer™)

viscosity

50,000-100,000 cP (Shear Rate: 1 s-1
250cP - 450 cP (Shear Rate: 1000 s-1))

density

2.85-3.3

storage temp.

15-25°C

Related Categories

Application

This Ag ink product is a conductive high viscous ink based on single-crystal silver nanoparticles in an organic solvent, has been designed for LIFT (Laser Induced Forward Transfer) digital printing and laser sintering.

The ink offers:
  • Uniform and reproducible donor layer with low drying speed
  • Stable accurate jetting in different types of laser systems, wide working window of jetting parameters
  • High speed printing (20-50kHz), allowing high throughput
  • Narrow patterning on plastic and glass substrates (line width ∼50 μm, height ∼0.5 μm, spacing ∼50 μm)
  • Laser sintering of LIFT printed pattern, providing good electrical properties


Fit for:
LIFT digital printing
Additive electronic manufacturing
Printed electronics: RFID, FPD, Sensors

Laser induced forward transfer printing (LIFT) is a non-contact, nozzle-free, one step, direct laser writing process.
LIFT can operate under atmospheric conditions, is compatible with low laser fluences, allows the printing of organic and inorganic materials as well as biological elements. The printing process can take place from both liquid and solid phases. It further has a high lateral resolution only defined by the laser spot size. It is a method compatible with inorganic semiconductor sensor fabrication, OLED fabrication and bio printing.

Other Notes

Resistivity (4PP): After laser sintering* ≤ 8 μΩ·cm (≤ 5 bulk) for LIFT printed line (∼1-2 μm thick) on plastic substrate
*Parameters should be optimized depending on line geometry and substrate

Storage and Stability

Keep container tightly closed. Store at room temperature, do not heat above 60 °C and do not freeze.

Legal Information

Lumisizer is a trademark of LUM GmbH

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H319,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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V S Cheptsov et al.
Letters in applied microbiology, 67(6), 544-549 (2018-09-18)
Recently, it was shown that laser-induced forward transfer (LIFT) technology and the laser engineering of microbial systems (LEMS) technique (based on LIFT method) are effective for isolation of micro-organisms from different complex substrates. These techniques frequently utilize Au as an
Laser-induced forward transfer from healing silver paste films printing
Turkoz E, et al.
Applied Physics Letters, 113(22), 221601/1-221601/5 (2018)
Printing of complex free-standing microstructures via laser-induced forward transfer (LIFT) of pure metal thin films
Feinaeugle M, et al.
Additive Manufacturing, 24, 391-399 (2018)

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