作者: N. C. Greenham , S. C. Moratti , D. D. C. Bradley , R. H. Friend , A. B. Holmes
DOI: 10.1038/365628A0
关键词: Electroluminescence 、 Polymer chemistry 、 Polymer 、 Materials science 、 Electron 、 Light-emitting diode 、 Conjugated system 、 Diode 、 Indium tin oxide 、 Electrode 、 Optoelectronics
摘要: CONJUGATED polymers have been incorporated as active materials into several kinds of electronic device, such as diodes, transistors1 and light-emitting diodes2. The first polymer light-emitting diodes were based on poly (p-phenylene vinylene)(PPV), which is robust and has a readily processible precursor polymer. Electroluminescence in this material is achieved by injection of electrons into the conduction band and holes into the valence band, which capture one another with emission of visible radiation. Efficient injection of electrons …