Light Emitting Diodes Based on Poly-o-toluedine

  *+# . ,-  (POT)/  0 12 567 3 4 ITO/POT/Al 89/  :;  PL, I-V ?@ A :; ?@B () &' . / :;< DE8C 9~14 VF) . : . ,-  , :; G , H -D ?@ , ; ;:ABSTRACT. Poly-o-toluidine (POT) was chemically and electrochemically synthesized for the study of electronicand steric effect of methyl substituents. The turn-on voltage of organic light emitting diode (OLED) was 9~14 V. ITO/POT/Al structured OLED were fabricated with various oxidation states of POT. PL, I-V characteristics and EL spectrawere investigated.Keywords:Polytoluidine, Electroluminescence, I-V, Photoluminescence