What They Say
A hat-tip to Alfred Poor, publisher of Health Tech Insider for pointing me to an article about the use of ink-jet printing to create Bragg mirrors. The technology has been developed at the Karlsruhe Institute of Technology (KIT) which has been able to make the reflectors without the use of vacuum deposition.
The technology can be used to make mirrors down to a few microns, but is also usable for displays up to several square metres and mirrors have been printed on flexible plastic foils.
“Thanks to the rapid development of nanochemistry, nanoparticles are getting cheaper and more diverse,”
Professor Uli Lemmer said. His team used a mix of two different materials, titanium oxide and polymethyl methacrylate, as optical components of the inks. Using the inks, researchers succeeded in producing extremely precise optical properties and thicknesses of the layers.
“We reached a very high reflectivity of 99 % with ten double layers only,”
he added.
What We Think
An interesting development! (BR)
