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Enhanced electron transportation of PF-NR2 cathode interface by gold nanoparticles
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Journal Article
Enhanced electron transportation of PF-NR2 cathode interface by gold nanoparticles
2019
Overview
In order to achieve a wider organic light-emitting diode (OLED) commercial popularity, solution processing inverted polymer light-emitting diode (iPLED) is a trend for further development, but there is still a gap for solution processing devices to achieve commercialization. The improvement of the performance iPLEDs is a research topic of intense current interest. The modification of the cathode interface layer of poly[(9,9-bis(3′-(
N
,
N
-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)] (PF-NR
2
) can greatly improve the performance of the devices. However, the electron transportation of the cathode interface layer of PF-NR
2
films is currently poor, and there is substantial interest in improving its electron transportation to further enhance the performance of organic optoelectronic devices. In this paper, gold nanoparticles (Au NPs) with a particle size of 20 nm were prepared and doped into the interface layer PF-NR
2
at a specified ratio. The electron transportation of the interface layer of PF-NR
2
was greatly improved, as judged by conductive atomic force microscopy measurements, which is due to the excellent conductivity of Au NPs. Herein, we demonstrate improved electron transportation of the interface layer by doping Au NPs in PF-NR
2
film, which provides important and practical theoretical guidance and technical support for the preparation of high performance organic optoelectronic devices.
Publisher
Springer US,Springer Nature B.V,SpringerOpen
