Hole blocking in carbon nanotube–polymer composite organic light-emitting diodes based on poly (m-phenylene vinylene-co-2, 5-dioctoxy-p-phenylene vinylene)
作者： H. S. Woo , R. Czerw , S. Webster , D. L. Carroll , J. Ballato
DOI: 10.1063/1.1290275
关键词: Materials science 、 Oscillator strength 、 Cathode 、 Conductive polymer 、 OLED 、 Phenylene 、 Polymer 、 Chemical engineering 、 Carbon nanotube 、 Electroluminescence
摘要: In order to investigate the role of carbon nanotubes in a polymer matrix, organic light-emitting diodes were fabricated from composite composed poly (m-phenylene vinylene-co-2,5-dioctoxy-p-phenylene) (PmPV) and dispersed single-wall (SWNTs). Tris-(8-hydroxyquinolinolato) aluminum (Alq3) doped by Nile Red was used as an emissive material between cathode. The device without SWNTs PmPV shows dominant emission near red at 600 nm, which is range characteristic Red-doped Alq3, with small amount green PmPV. However, devices show increase oscillator strength peak 500 This observed for SWNT concentrations up 0.1 wt %. shift indicates that matrix act hole-blocking resu...
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