Improving organic light-emitting diode performance with ZnO nanoparticles

The effect of ZnO nanoparticles as an electron transport layer (ETL) on the electronic properties of organic light-emitting diodes (OLEDs) was experimentally investigated in this study. OLED was fabricated with the structure of ITO/PEDOT:PSS/PVK/Eu/ZnO nanoparticle/PBD/Al, and then loaded with diffe...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2017-06, Vol.28 (11), p.7797-7801
Main Authors: Musavi, H., Fadavieslam, M. R.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electric potential
Electron transport
Luminescence
Materials Science
Nanoparticles
Optical and Electronic Materials
Organic light emitting diodes
Photovoltaic cells
Polyvinyl carbazole
Voltage
Zinc oxide
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Summary:The effect of ZnO nanoparticles as an electron transport layer (ETL) on the electronic properties of organic light-emitting diodes (OLEDs) was experimentally investigated in this study. OLED was fabricated with the structure of ITO/PEDOT:PSS/PVK/Eu/ZnO nanoparticle/PBD/Al, and then loaded with different amounts on ZnO nanoparticles. The scanning electron microscope field effect, optical absorption, luminescence, and current density–voltage of the OLEDs were characterized. Results showed that using ZnO nanoparticles as an ETL enhanced the performance and efficiency of the OLEDs. Moreover, increasing the loading amount of the ZnO nanoparticles increased luminescence and transparency and decreased work voltage. The characterization results showed that adding layers of ZnO nanoparticles changed the work voltage from 12.2 to 10 V, maximum luminescence from 0.19 to 0.23, and transparency from 60 to 86%.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-017-6475-8