A Low Drive Voltage, Transparent, Metal-Free N-I-P Electro phosphorescent Light Emitting Diode

Topics:
Electrical and Electronic
Tags:
Diode,
Efficiency,
Light-emitting Diode,
Organic Light-emitting Diode,
Reed Elsevier Inc.
Source:
Reed Elsevier

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Overview: The paper demonstrates a transparent, inverted, electro phosphorescent n-i-p organic light emitting diode (OLED) exhibiting a luminance of 500 cd/m2 at 3.1 V, and with a luminous power efficiency of 23 lm/W when light emitted from both top and bottom surfaces is summed. It finds that 10% lighter is emitted from the top surface; hence a power efficiency of 12 lm/W is obtained for a device viewed through the top, transparent contact. This device, with applications to head-up and displays employing n-type Si driver circuitry, has significantly higher power efficiency and lower drive voltage than undoped fluorescent inverted OLEDs.

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Format: PDF | Size: 308KB | Date: Feb 2003 | Pages: 6

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