OLED preparation

• Wash 4 vials using CHCl₃ -> Acetone -> Isoproponal, then blow dry
• Weight 100mg PVK, 40 mg PBD, 6-12 mg C6 (C47, niel red)
• 100 mg PVK + 40 mg PBD + 7.2 ml C.B., bar stir for 1 hour,
  Prepare: 1 mg/ml C6 in chlorobenzene (C.B.); 1 mg/ml C47 in C.B.; 1 mg/ml nile red in C.B.
• Syringe filtering
• Prepare : 100 mg PVK + 40 mg PBD + 0.3 mg C6 in 7.5 ml C.B. for green; 100 mg PVK + 40 mg PBD + 0.2 mg nile red in 7.5 ml C.B. for red; 100 mg PVK + 40 mg PBD + 1 mg C47 in 7.5 ml C.B. for blue emission.
  
• ITO glass: oxygen plasma treatment, plasmatherm 720, 150 mTorr, O2=25 sccm, 25W, 4 minutes;
  
• Spinning coating of PVK+PBD+C6 film, 2000 rpm, 50 sec.
• Bake on hotplate: 80~100 C, 20~30 minutes
  
• Evaporate Mg/Ag cathode. (For Mg evaporation, set I=0 in the automatic control program for stable evaporation)