Forward electrohydrodynamic inkjet printing of optical microlenses on microfluidic devices

We report a novel method for direct ink-jet printing of viscous polymers based on a pyro-electrohydrodynamic repulsion system capable of overcoming limitations of previous classical EHD ink-jet printing on the material type, geometry and thickness of the receiving substrate.

Download Full-text

Indium plated carbon nanotubes pattern on flexible substrate defined by ink-jet printing

MRS Proceedings ◽

10.1557/opl.2013.265 ◽

2013 ◽

Vol 1505 ◽

Cited By ~ 1

Author(s):

Pingye Xu ◽

Michael C. Hamilton

Keyword(s):

Carbon Nanotubes ◽

Inkjet Printing ◽

Flexible Substrate ◽

Ink Jet Printing ◽

Ink Jet ◽

Jet Printing ◽

Rf Performance ◽

Interconnect Material

ABSTRACTCarbon nanotubes patterns of micron-level resolution have been achieved using inkjet printing of DNA and SDS assisted CNT dispersions. DNA/CNT film has a significantly higher resistance compared to SDS/CNT film. Taking advantage of the porous nature of printed SDS/CNT film after SDS removal, indium can be electroplated to fill the CNT network and form a CNT/In composite. The CNT/In composite was used as interconnect material. Reworkability and RF performance of In-plated CNT bump structures are studied and the results are presented.

Download Full-text

Graphene Oxide for Ink-Jet Printing Technology

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.748.77 ◽

2015 ◽

Vol 748 ◽

pp. 77-80 ◽

Cited By ~ 1

Author(s):

Ya Ling Li ◽

Xi Guo ◽

Xiao Juan Feng ◽

Lu Hai Li

Keyword(s):

Surface Tension ◽

Graphene Oxide ◽

Zeta Potential ◽

Inkjet Printing ◽

Laser Scanning Microscopy ◽

Average Particle ◽

Printing Technology ◽

Ink Jet Printing ◽

Ink Jet ◽

Jet Printing

In order to acquire a suitable ink for ink-jet printing technology, a graphene oxide ink was explored based on the GO aqueous dispersion. The GO dispersion was characterized by field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD). The average particle diameter and zeta potential of the GO dispersion was determined by zeta potential & particle size analyzer. The GO ink is composed of 1,2-propanediol, diethylene glycol monobutyl ether, glycerol, polyvinyl pyrrolidone (PVP) and GO dispersion. The surface tension and viscosity of the GO ink was tested by surface tension meter and rheometer. The GO ink was inkjet printed on polyethylene terephthalate (PET) substrate. The optimal inkjet printing parameters were obtained and the printing quality was characterized by confocal laser scanning microscopy. The results show that the GO ink is suitable for inkjet printing technology and the morphology of the GO film with one printing pass has good uniformity.

Download Full-text

Influence of the Viscosity of Edible Ink to Piezoelectric Ink-Jet Printing Drop State

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.200.676 ◽

2012 ◽

Vol 200 ◽

pp. 676-680 ◽

Cited By ~ 2

Author(s):

Jing Mei Sun ◽

Xian Fu Wei ◽

Bei Qing Huang

Keyword(s):

Inkjet Printing ◽

Great Influence ◽

Tail Length ◽

Ink Jet Printing ◽

Printing Quality ◽

Ink Jet ◽

Jet Printing ◽

Different Levels ◽

The Way

Piezoelectric Inkjet Printing is the main ink-jet printing at present, and drop state will have great influence to ink-jet printing quality, so the ink-jet drop state of edible ink is researched based on piezoelectric inkjet printing. The viscosity of the ink is adjusted by the way of adding different levels of resin, and then the samples which have different viscosity are got. Drop state is observed through drops observatory which installs Spectra Polaris nozzle (35pl), then the speed, volume, tail length and roundness of the drops are measured at certain moment in order to evaluate the influence of viscosity to ink-jet drop state. The result shows that viscosity has big influence to ink-jet drop state, when the viscosity becomes larger, the speed of drops becomes smaller, the variation of volume is not so obvious, the tail length of drops becomes smaller and roundness becomes larger accordingly, until the viscosity is 10mPa•s, the tail length is the smallest and roundness is the biggest, the drop state is the best , when viscosity is bigger than 10mPa•s, the tail length will become bigger and roundness smaller.

Download Full-text