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Electroluminescence of Dye-Dispersed BPDA-PDA Polyimide Light Emitting Diode(LED)

1997; Volume: 295; Issue: 1 Linguagem: Inglês

10.1080/10587259708042789

1058-725X

Youngkyoo Kim, Won‐Jei Cho, Chang-Sbc Ha,

Conducting polymers and applications

Abstract Photoluminescent(PL) spectra of Alq3 as supplied and after thermal treatment was measured to verify the degradation during thermal imidization of poly(amic acid). The electroluminescent devices(ELDs) composed of ITO, Alq3/BPDA-PDA PAA or BPDA-PDA polyimide, Mg, and In were fabricated. Current-voltage and EL characteristics of the ELDs were also studied. At 50/50 composition, the turn-on voltage of ELD was ca. 12V. The ELD illuminated bright green light at 25V.