piezoelectric inkjet printing tagged posts

Researchers at Oregon State University use new technology to control the formation and release of bubbles. Here that technology is illustrated with the letters “OSU” printed on a substrate. Credit: Image courtesy of Oregon State University

Engineers at Oregon State University have found a new way to induce and control boiling bubble formation, that may allow everything from industrial-sized boilers to advanced electronics to work better and last longer. The concept could be useful to either to boil water and create steam more readily, like in a boiler or a clothing iron; or with a product such as an electronics device to release heat more readily while working at a cooler temperature.

“One of the key limitations for electronic devices is the heat they generate, and something that helps dis...

Inkjet printed “lasing capsules” serve as the core of an organic laser. Figure (a) shows a schematic of the laser setup, while figure (b) shows actual lasing capsules, which would cost only a few cents to produce. OC stands for “Output Coupler” and FP stands for Febry-Perot etalon. Credit: Sanaur, et al/JAP

Ultra-low-cost, easy to fabricate ‘lasing capsules’ with an inkjet printer. Since lasers were invented more than 50 years ago, they have transformed a diverse swath of technology – from CD players to surgical instruments. Now researchers from France and Hungary have invented a way to print lasers that’s so cheap, easy and efficient they believe the core of the laser could be disposed of after each use.

“The low-cost and easiness of laser chip fabrication are the most significant aspects...