Darryl Smith knows how to make organic light-emitting diodes (OLED) more energy efficient than those available today. Current OLEDs have a transparent layer of electrically conductive material deposited on a substrate. Another layer of organic polymer, the one from which light is emitted, is deposited on the transparent layer. The third and final conducting layer is then deposited. Smith, a Los Alamos National Laboratory researcher, proved a method by which an intermediate chemical layer is applied between a conducting layer and the polymer layer of OLEDs, increasing the efficiency of current flow. He describes the single-molecule layer as a self-assembled polymer. The self-assembling layer has rows that line up in the same direction. Adding atoms at each end of the mono-molecule layer, the molecules "anchor" themselves to the conducting layer while maintaining polarity. The molecules' charged ends resemble the poles of a bar magnet. The thin layer shuttles electric charges between OLED's conducting and polymer layers. For more information, go to www.lanl.gov.
If a major catastrophe strikes your area, will you be prepared? Do you know how to modify the tech you've already got or MacGyver what you need to fit your own situation? A free, five-day Continuing Education Center course starting April 6 will show you how.
NanoSteel Co., which develops high-performance steel alloys, began producing steel powders for additive manufacturing (AM) last year and now supplies them commercially for freeform laser deposition and laser powder bed fusion processes.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.