The successful development of alternate low cost technology for current lighting devices will have a significant impact on the U. S. economy and national security. White organic light emitting diodes (OLEDs) with potentially high power efficiency are considered as strong candidate for the next generation of illumination devices. Moreover, the use of environmentally benign organic materials in white OLEDs and their potentially low fabrication cost makes them an attractive technological prospect.  In this presentation, we will discuss our continuing efforts on the design, synthesis and characterization of novel platinum complexes for displays and lighting applications.  The photo-physics, electrochemistry and electroluminescent properties of these novel platinum complexes, including fluorine-free Pt-based deep blue emitters, will be discussed.  The rational molecular design enables us to develop cyclometalated Pt complexes with both photon-to-photon (in thin film) and electron-to-photon (in device settings) conversion efficiency close to 100% for OLED applications. We will also discuss our approaches to achieve high efficiency white OLED using Pt complexes and maximize outcoupling efficiency of OLEDs by incorporating narrow band phosphorescent emitters in the microcavity device settings.

Efficient cyclometalated platinum complexes for displays and lighting applications

246th National Meeting (2013)

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