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Advancing molecular ferroelectric thin-film technologies
Recent progress in molecular ferroelectrics (MOFEs) has been overshadowed by the lack of high quality thin-films for device integration. Molecular ferroelectrics are highly desirable as they are environmentally friendly, light-weight, and high spontaneous polarized. Though intensive studies have been focused on molecular ferroelectrics, very few researchers have tried to address the issue of thin film growth.

New mirror-coating technology promises dramatic improvements in telescopes
Materials scientist Nobuhiko Kobayashi wasn't quite sure why the astronomer he met at a wine-tasting several years ago was so interested in his research, but as he learned more about telescope mirrors it began to make sense.

A simple additive to improve film quality
Printed Electronics World
Thin films for use in solar cells are more effective when simple chemicals called glycol ethers are added to the film-forming mix, a KAUST team has found. "This is an unexpected discovery," says Esma Ugur, a PhD student in the KAUST Solar Center team that observed the effect. "It yields more uniform thin films with improved structure and efficiency."

Active thin films: Electrolytes for thin film batteries
Vacuum Technology and Coating
The basic thin film Li-ion battery (TFLIB) structure consists of anode-electrolyte (separator)-cathode. Anode and cathode structures and materials were addressed last month. We complete the description of the structure with a discussion of electrolytes and then move on to battery performance and fabrication processes.

Micron-scale wedge thin films deposition made simple
Advanced Science News
Wedge structures have been traditionally utilized for different kinds of applications, either at macro-, micro-, or even nano-scales. In optics, a macroscopic wedge structure formed by two optically transparent plates is the basis of a classical optical device that yields interference patterns where the separation between individual fringes relates to the slope of the wedge.


What you need to know about aluminum evaporation
Aluminum is a very popular material for evaporation. We have many different sources that can be used to successfully evaporate aluminum. However, there are a few common problems that occur when evaporating this material. One problem that you may be aware of that aluminum wets to most surfaces and does not stay in the evaporation area. The other, more significant problem is that moltent aluminum is very corrosive and will corrode through most surfaces and cause the boat or box to break during the evaporation process. Spitting is not normally a problem. Tungsten is the most resilient of the materials to this corrosiveness. Below are some things to consider when choosing the right source for your application:

A) What is the maximum current you have available to apply to the source?
B) How thick of a coating are you attempting?
C) What is the distance from the source to the substrate?
D) Are you evaporating in an upward direction?
E) What length source will fit in to your mounting points?

After reviewing the information above, you may be able to select the right source for your process. If you need further assistance, please do not hesitate to contact us.

Join R.D. Mathis Company at these upcoming events

October 29 - November 3 — AVS Show
Tampa Convention Center
Tampa, FL

November 26 - December 1 — MRS Fall Show
Hynes Convention Center
Boston, MA

February 22, 2017 — NCCAVS 39th Annual Equipment Exhibition
Holiday Inn San Jose Airport
San Jose, CA

March 5-9 — APS March Meeting 2018
Los Angeles Convention Center
Los Angeles, CA

May 5-10 — 61st SVC Annual Technical Conference
Gaylord Palms Resort & Convention Center
Orlando, FL

The Evaporator

R.D. Mathis Company
P.O BOX 92916
Long Beach, Ca 90809-2916
Telephone (562) 426-7049
Fax (562) 595-0907
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