Phosphorescent Organic Light-Emitting Devices: Working Principle and Iridium Based Emitter Materials

International Journal of Molecular Sciences

Stefan Kappaun¹  Christian Slugovc² 

[1] NanoTecCenter Weiz Forschungsgesellschaft mbH, Franz-Pichler-Straße 32, 8160 Weiz, Austria;Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 16, 8010 Graz, Austria

关键词: Organic light-emitting devices (OLEDs);    electroluminescence;    fluorescence;    phosphorescence;    phosphorescent polymers;   

DOI  :  10.3390/ijms9081527

来源: mdpi

【 摘 要 】

Even though organic light-emitting device (OLED) technology has evolved to a point where it is now an important competitor to liquid crystal displays (LCDs), further scientific efforts devoted to the design, engineering and fabrication of OLEDs are required for complete commercialization of this technology. Along these lines, the present work reviews the essentials of OLED technology putting special focus on the general working principle of single and multilayer OLEDs, fluorescent and phosphorescent emitter materials as well as transfer processes in host materials doped with phosphorescent dyes. Moreover, as a prototypical example of phosphorescent emitter materials, a brief discussion of homo- and heteroleptic iridium(III) complexes is enclosed concentrating on their synthesis, photophysical properties and approaches for realizing iridium based phosphorescent polymers.

【 授权许可】

CC BY   
© 2008 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).