In this paper, we demonstrated an efficient
textured colour conversion layer (CCL) of a down-converted white organic
light-emitting diode (WOLED), which was fabricated by a very simple transfer
imprinting method based on silicon wafer. The textured CCL not only helped to
extract wave-guided light in the device, but also had an outstanding performance
in enhancing the colour conversion rate, which was 1.75 times greater than that
of flat CCL. Compared to flat CCL, the lower-doped textured CCL produced better
white emission and higher efficiency simultaneously. Moreover, the WOLED with
textured CCL also exhibited good colour stability at various voltages.
Source:IOPscience
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