A team of University of California scientists at Los Alamos National Laboratory have developed what it claims is the first inorganic, multi-colour light-emitting diodes based on colloidal quantum dots encapsulated in a gallium nitride semiconductor.
Russell Dupuis talks about the development and future of this revolutionary technology in conversation with Jane Sanders
LEDs in arrays need constant current driving - for consistent driving current through each LED. Putting a resistor across each LED will not ensure the current through each LED in the array will be the same because every LED has its own voltage drop value.
Researchers at the University of Pennsylvania propose to shrink circuits to save space and power and, more importantly, accommodate electronic applications at much higher frequencies than are possible with current models - applications that include nano-optics, optical information storage and molecular signalling.
Designed for single phase compressors of up to 6.5kWatts (6.5 shaft horsepower), i-Start's patented switching technology not only reduces start-up currents to less than 45Amps, it reduces electrical load and hence wear on the starter as well, offering the potential of longer life for both compressors and starters alike.
Richardson Electronics has signed a strategic partnership with WJ Communications to represent the global sales channel for its multi-protocol MPR 5000 and MPR 6000 RFID reader cards, available in a standard PCMCIA Type II package.
Researchers from the British universities of Southampton and Glasgow have succeeded in tying knots in light beams.