Electroluminescence from nanoparticles/organic composites

We report the visible light emission of organic-inorganic light emitting devices by low-cost spin-coating. Different nanoparticles, CdSe, ZnO and Eu 2 O 3 , are employed to form organic-inorganic hybrid composites and generate the R-G-B and white light emission, while N,N'-diphenyl-N,N'-bi...

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Bibliographic Details
Main Authors: Ching-Fuh Lin, Chun-Yu Lee, Wei-Bo Lu, Wei-Fang Su, Yuen Yung Hui
Format: Conference Proceeding
Language:English
Subjects:
cadmium selenide
dielectric
Electroluminescence
europium oxide
Light emitting diodes
Nanocrystals
Nanoparticles
organic light emitting device
Solvents
Zinc oxide
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Summary:We report the visible light emission of organic-inorganic light emitting devices by low-cost spin-coating. Different nanoparticles, CdSe, ZnO and Eu 2 O 3 , are employed to form organic-inorganic hybrid composites and generate the R-G-B and white light emission, while N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine (TPD) and polymethyl methacrylate (PMMA) are adopted as the organic matrices. We further investigate the hybrid composite film by scanning near-field optical microscope and find that phase-segregation enhances the electroluminescence of ZnO composite film. Meanwhile, the homogeneity of the Eu 2 O 3 composite film improves the white light emission.
ISSN:1944-9399
DOI:10.1109/NANO.2007.4601319