Electrospun metal fiber is a promising flexible transparent electrode owing to its extremely long length and facile fabrication process. However, metal-fiber electrodes have problems with chemical and thermal stability and nonuniform emission in organic light-emitting diode (OLED) at low luminance. In this study, we proposed a Ag fiber/IZO composite electrode with high stability. Ag fiber/IZO composite electrodes exhibited chemical and thermal stability. In addition, it was demonstrated that the OLED with the Ag fiber/IZO composite electrode operated stably, and the uniform emission of the OLED with metal-fiber electrodes improved by using highly conductive IZO film.
Bibliographical noteFunding Information:
This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIP) (No. 2016R1A2B4014073) and the Ministry of Education (No. NRF-2017R1D1A1B03036520), the Industry Technology R&D program of MOTIE/KEIT [10048317, Development of red and blue OLEDs with external quantum efficiencies over 20% using delayed fluorescent materials], and the Brain Korea 21 Plus Project in 2018.
© 2019, The Author(s).
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