High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer
Article Abstract:
A long-range, non-radiative energy transfer is the mechanism for energetic coupling between phosphorescent and fluorescent molecular species. It is possible to achieve an internal efficiency of fluorescence of as high as 100%. Research in this area has indicated a general technique for boosting the efficiency of fluorescence in organic light-emitting diodes. Mixing the host, phosphorescent sensitizer and fluorescent dye, instead of doping in alternating thin layers, would be expected to bring further improvement in energy transfer efficiency.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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Transparent light-emitting devices
Article Abstract:
A new set of organic light-emitting devices (OLEDs) are described to have more than 70% transparency in inactivated state and uniformly give off light of 0.75% quantum efficiency when activated. These transparent OLEDs also have low operating voltage, and long serving capacity. The luminosity of the devices is vital for defined and color-detailed video display systems demonstrations, as well as in head-up gears like helmets and windscreens which require low-voltage and translucent displays.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Highly efficient phosphorescent emission from organic electroluminescent devices
Article Abstract:
A fluorescent dye can improve the efficiency of electroluminescent organic light-emitting devices. High efficiency energy transfer from singlet and triplet states is reported in a material doped with phosphorescent dye 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphine platinum (II) (PtOEP). Saturated red emission was generated with peak external and internal quantum efficiencies of 4% and 23%.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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