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Osram Opto Semiconductors Inc. of San Jose, Calif., said it has developed the first polymer-OLED tunable light source and achieved a 25 lumens-per-watt (lm/W) device efficiency as part of a white organic light-emitting diode (OLED) project funded by the US Department of Energy (DOE). The $4.65 million grant was awarded in 2004 to research the potential of white OLEDs to save energy in commercial and residential lighting applications. Osram said the cool-white-emitting device uses a phosphorescent, blue-emitting device in conjunction with an external inorganic phosphor layer. The tunable light...Read full article

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    Published: November 2005
    Advanced PhotonixConsumerdefenseNews & FeaturesOLEDsOsram Opto SemiconductorsPicometrixSensors & Detectorsterahertz systemwhite organic light-emitting diode

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