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Studies the dependencies of photoluminescence in five membered heterocyclic conducting polymers on heteroatoms and temperature. Photoluminescence spectra of poly(3-hexylthiophene) at various temperatures; Temperature dependence of luminescence intensity of poly(3-alkylthiophene) with various alkyl chain lengths; Absorption spectra of poly(3-hexylthiopene) at various temperatures.

For the purpose of exploring near-infrared emission, the photoluminescence (PL) and electro- luminescence (EL) of N,N′-bis(neopentyl)-3,4:9,10-perylenebis(dicarboximide) (BNPTCD): tris(8-quinolinolato)aluminum (Alq3) mixed films were investigated. It was found that BNPTCD:Alq3 mixed films exhibit PL in the near-infrared wavelength region and that organic light-emitting diodes using Alq3 highly doped with BNPTCD as an emitting layer exhibit near-infrared EL with a peak at 805 nm originating from BNPTCD aggregates. [ABSTRACT FROM AUTHOR]

Examines the fabrication and characteristics of 8-hydroxyquinoline aluminum and aromatic diamine multiple quantum well (MQW). Growth of MQW by organic molecular beam deposition; Indication of a quantum size effect by the photoluminescence; Production of an electroluminescent diode.