86. Dual-color polymer light-emitting diodes based on hybrid films of soluble poly(p-phenylenevinylene) derivatives. C.Liu, M.Wang*, M.Wu, T.X.Liu*, G.Y.Zhong, H.B.Yao. Thin Solid Films, 515(20-21), 7930-7934, 2007.
Polymer light-emitting diodes with red and green emissions were fabricated on the same indium-tin oxide (ITO) substrate. The basic device structure is ITO/electroluminescent polymer/Al. The polymer light-emitting layer of the dual-color device fabricated in this work has two parts, one part is the single (poly[2,5-dimethyldodecylsilyl-1,4-phenylenevinylene]) (Si-PPV) film, and the other part consists of the hybrid films of Si-PPV and cyano-substituted poly[2,5-didecyloxy-1,4-phenylenevinylene] prepared by a simple two-step spin-coating method. The device characteristics have been investigated, and the possible electroluminescent mechanisms were discussed.