Organic light-emitting diodes development

The development and manufacture of organic light-emitting diodes (OLEDs) have demanded the use of the most advanced microstructural characterization techniques and sophisticated performance measurement devices [1-14], In this chapter, we will briefly describe these techniques and devices and review how scientists and engineers utilize them to improve the performance of OLEDs. 

Z.G. Li, Applications of microscopy in Organic Light-Emitting Diode Research and Development, Proc. Microscopy and Microanalysis, 1352-1353, 2004. 

From the first synthesis of rare-earth /9-diketonates in 1897 by Urbain until now, hundreds of different complexes formed by reaction between Lnni ions and /3-diketone derivatives have been described in the literature. Interest for this type of complexes comes from then-potential application in numerous and diverse domains. These complexes can be used for example as extractants in solvent-solvent extraction processes or as active compounds for the development of chelate lasers or liquid lasers. But they can also find applications in NMR as shift reagents or as electroluminescent materials in organic light-emitting diodes (OLEDs) (Binnemans, 2005b). 

The planarity of the thiopyran-4-ylidene moiety has proved crucial in the development of substituted analogues for use in materials, for example, synthetic metals, organic light emitting diodes and conducting polymers, where good electron transport properties are required. 

M. Stolka, Organic Light Emitting Diodes (OLEDs) for General Illumination, OIDA Industrial Development Association, USA, Update 2002. 

Lo SC, Burn PL (2007) Development of dendrimers macromolecules for use in organic light-emitting diodes and solar cells. Chem Rev 107(4) 1097-1116... 

Organic light emitting diodes are currently being developed by numerous companies and research institutions worldwide. From the perspective of printed electronics, polymer-based hght emitting diodes are very attractive. Polymer LEDs are essentially diodes... 

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