Studies on Printing Inks Containing Poly(2-methoxy-5-(2-ethylhexyl-oxyl)-1,4-phe- nylenevinylene) as an Emissive Material for the Fabrication of Polymer Light-Emitting Diodes by Inkjet Printing
作者： Kyu-Sik Kim , Soo-Hyoung Lee , Youn-Sik Lee , Jae-Taek Kwon , Seung-Hun Eom
DOI: 10.5012/BKCS.2012.33.2.464
关键词:
摘要: Three solvent systems, chlorobenzene (ink 1), chlorobenzene/o-dichlorobenzene 2) and chlorobenzene/ tetrahydronaphthalene 3), were compared as printable inks for the fabrication of polymer light-emitting diodes (PLEDs) using poly[2-methoxy-5-(2-ethylhexyl-oxyl)-1,4-phenylenevinylene (MEH-PPV) an emissive material inkjet printer (Fujifilm Dimatix DMP-2831). Ink 1 clogged printer’s nozzle gave non-uniform film. Inks 2 3 used to fabricate PLEDs with ITO/PEDOT:PSS/MEH-PPV/LiF/Al configurations. The best performance (turn-on voltage, 3.5 V; luminance efficiency, 0.17 cd/A; luminance, 1,800 cd/m) was obtained when ink form layer (thickness, 49 nm), attributable better morphology suitable thickness MEH-PPV layer.
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