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Progress in Chemistry 2001, Vol. 13 Issue (06): 413-   Next Articles

• Review •

Problems in the Study of Electro-Lum inescence Devices Based on Phosphorescent Dyes

Wu Shikang;Zhang Xiaohong; Li Shutang   

  1. Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, China; Department of Physics and Material Sciences, Hong Kong City University, Hong Kong, China

  • Received: Revised: Online: Published:
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From the photophysical and photochemical points of view , the basic problems of phospho2rescent emission electrolum inescence devices have been discussed briefly in this review. A series of problems such as the emission layer material selection, the exciton formation and its migration with in different transportation layer, the energy transfer between host and guest molecules and the condition of phosphorescence emission are involved. Key points concerned with the device design and preparation are also discussed concisely.
Key words: phosphorescence emission electrolum inescence devices, photochemistry, photophysics, triplet state energy migration and transfer, excimer, exciplex, phosphorescence emitted compounds

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