Title :
Layered poly(alkylfluorene) light emitting diodes for optical signal transmission
Author :
Kojima, Toshinari ; Kajii, Hirotake ; Ohmori, Yutaka
Author_Institution :
Grad. Sch. of Eng., Osaka Univ., Suita, Japan
fDate :
Oct. 30 2011-Nov. 2 2011
Abstract :
Polymeric materials are one of promising materials for organic electronics devices fabricated by printing technology. Among polymeric materials, poly(9,9-dialkylfluorene) (PFO) is one of soluble conducting polymers for polymeric light-emitting diodes (PLEDs), which exhibits high fluorescence quantum yield, high electron and hole mobility and good thermal stability. Layered polymeric light emitting diodes were fabricated by solution process in order to enhance the emission characteristics, especially, emission intensity and emission efficiency. Inserting a thin film of polymeric inter-layer between an emissive and a carrier transporting layer, emission intensity and efficiency were enhanced. Finally, the PLEDs exhibited high speed operation at 100MHz with direct driving operation. The PLEDs can be used as an electro-optical conversion device for optical signal transmission.
Keywords :
conducting polymers; electro-optical devices; electron mobility; fluorescence; hole mobility; optical polymers; organic light emitting diodes; polymer films; printing; thermal stability; PLED; carrier transporting layer; electron mobility; electrooptical conversion device; emission efficiency; emission intensity; emissive transporting layer; high fluorescence quantum yield; hole mobility; layered poly(alkylfluorene) light emitting diodes; optical signal transmission; organic electronics devices; poly(9,9-dialkylfluorene); polymeric interlayer thin film; polymeric materials; printing technology; soluble conducting polymers; solution process; thermal stability; Nonhomogeneous media; Optical sensors; Photonics;
Conference_Titel :
Microopics Conference (MOC), 2011 17th
Conference_Location :
Sendai
Print_ISBN :
978-1-4577-1344-6
