Efficient light-emitting diodes

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The four different polyfluorene materials listed in Table 2.1 can be paired in six different ways. Some of these combinations have been employed successfully for various optoelectronic devices. For example, blend films of TFB and F8BT (written as TFB F8BT) have been employed for efficient light-emitting diodes (see, e.g. 

N. C. Greenham, S. C. Moratti, D. D. C. Bradley, R. H. Friend, A. B. Holmes, Efficient Light-Emitting Diodes Based on Polymers with High Electron Affinities. Nature 1993, 365, 628-630. 

Lee CH, Lee CE, et al. Highly efficient light-emitting diodes based on an organic-solu- [121] ble poly(p-phenylenevinylene) derivative carrying the electron-transporting PIED moiety. 

Wu, F.I., P.I. Shih, C.F. Shu, Y.L. Tung, and Y. Chi. 2005. Highly efficient light-emitting diodes based on fluorene copolymer consisting of triarylamine units in the main chain and oxadiazole pendent groups. Macromolecules 38 (22) 9028-9036. 

Poly(phenylenevinylene) has been considered for many different applications due to its importance in nanoscale electronic devices. One such application is the search for efficient light emitting diodes. This property is the result of the electrooptical effect and constitutes an important area of modern research in theory as well as experiment. The efficiency of the nonradiative... 

Recent advances in photonics extend to plasmonics that concern the use of plasmon resonance in small metalhc structures of different shapes and quantum structures derived from confinement of electrons in semiconductor materials, for which many applications are envisaged surfeice-enhanced Raman scattering (SERS), efficient light-emitting diodes (LEDs), solar cells, or low-consumption fiat panel displays. 

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