Because of their application in low voltage flat panel displays, thin film electroluminescent devices research remains a very active field. Organic Electroluminescence covers the principles of organic electroluminescence as well as recent trends, current applications, and future potential. The book introduces organic light-emitting diodes (OLEDs) in terms of history, chemistry, and basic principles of electroluminescence preceding in-depth discussions of the parameters that control the quantum efficiency and control of light output, mechanisms for carrier/charge injection and transport in organic semiconductors, and electron and hole recombination processes. The authors also address the physical properties of OLEDs, the characterization of amorphous materials with high glass transition temperature, and the chemistry and significance of light-emitting polymers. The book covers state-of-the-art concepts and technologies such as phosphorescent and fluorescent materials, thin film transistors, and organic emissive displays, particularly pixel electronics. It concludes by summarizing future directions for organic light-emitting displays and solid state lighting and by providing an overview of photoexcited organic lasers using organic thin films and photonic crystals. Organic Electroluminescence is an excellent resource for students, novices, and experts interested in designing and studying electroluminescent materials.