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ABSTRACT
We demonstrated highly efficient OLEDs by incorporating ZnS nanodots on top of a glass substrate via a chemical bath deposition process. The device efficiency of OLEDs with ZnS nanodot arrays was 1.26 times higher than that of OLEDs without ZnS. This enhancement in device efficiency is attributed to the improved light out-coupling efficiency that is enabled by the improved optical performance of nanodot arrays, which results from their high refractive index and optical transmittance in the visible wavelength.
Acknowledgments
This research was supported by the Fusion and Complex Technique Development Project (S2171611), by the Jeonbuk Research & Development Program funded by Jeonbuk Province (20140310-A-001), and in part by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning (NRF-2014R1A1A1003341).
