LEDs Get As Cheap as Bulbs
PORTLAND, Ore.—A new formulation for light-emitting-diodes LEDs could make lighting systems using the as cheap as incandescent bulbs, according to Florida State University Tallahassee.
FSU has come up with an inexpensive single layer combo-organic/inorganic material formulation that can glow red, green or blue or all three together for white LEDs.Florida State University professor Zhibin Yu claims these low-temperature, single-layer LEDs will finally bring LEDs down to the price of old-school incandescent light bulbs.Source: FSU”LED researchers have only been using these new materials for about three years, even though its been used for solar panels for quite some time,” professor of Industrial and Manufacturing Engineering at FSU, Zhibin Yu, told EE Times. “Other groups are working on it for LEDs, but they need several layers of materials making it expensive to process. We are first published group to use a single layer.”Today LEDs need high-temperature processing and expensive substrates to achieve their high power, but at a premium price. Organic LEDs OLEDs were originally processed at low-temperatures in single layers, but have since evolved to using multiple layers and amorphous silicon backplanes to achieve adequate efficiencies.