articleJournal of the American Chemical SocietyJul 19, 2016HYBRID OA

Circularly Polarized Phosphorescent Electroluminescence with a High Dissymmetry Factor from PHOLEDs Based on a Platinahelicene

JRJochen R. BrandtXWXuhua WangYYYing YangAJAlasdair J. CampbellMJMatthew J. Fuchter

Imperial College London

PubMed
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Abstract

Circularly polarized (CP) light is of interest in areas such as quantum optical computing, optical spintronics, biomedicine, and high efficiency displays. Direct emission of CP light from organic light-emitting diodes (OLEDs) has been a focus of research as it has the immediate application of increasing efficiency and simplifying device architecture in OLED based displays. High dissymmetry (gEL) factor values have been reported for devices employing fluorescent polymers, but these CP-OLEDs are limited in their ultimate efficiencies by the type of emissive electronic transitions involved. In contrast, phosphorescent OLEDs (PHOLEDs) can emit light from triplet excited states and can therefore achieve very high…

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Topics & keywords

Topics
Keywords
  • Phosphorescence
  • Phosphorescent organic light-emitting diode
  • OLED
  • Electroluminescence
  • Brightness
  • Optoelectronics
  • Quantum efficiency
  • Chemistry
UN Sustainable Development Goals
  • Affordable and clean energy
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