The fabrication of color-tunable organic light-emitting diode displays via solution processing

Light, Science & Applications
Fei GuoChristoph J Brabec

Abstract

Electroluminescent devices based on organic semiconductors have attracted significant attention owing to their promising applications in flat-panel displays. The conventional display pixel consisting of side-by-side arrayed red, green and blue subpixels represents the mature technology but bears an intrinsic deficiency of a low pixel density. Constructing an individual color-tunable pixel that comprises vertically stacked subpixels is considered an advanced technology. Although color-tunable organic light-emitting diodes (OLEDs) have been fabricated using the vacuum deposition of small molecules, the solution processing of conjugated polymers would enable a much simpler and inexpensive manufacturing process. Here we present the all-solution processing of color-tunable OLEDs comprising two vertically stacked polymer emitters. A thin layer of highly conducting and transparent silver nanowires is introduced as the intermediate charge injection contact, which allows the emission spectrum and intensity of the tandem devices to be seamlessly manipulated. To demonstrate a viable application of this technology, a 4-by-4 pixelated matrix color-tunable display was fabricated.

References

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Citations

May 2, 2018·Nanomaterials·Xiao-Wen CaoHong-Bo Sun
May 1, 2020·Light, Science & Applications·Alessandro MinottoFranco Cacialli
Dec 7, 2019·Advances in Colloid and Interface Science·Mélissa RichardAbderrahim Yassar
Apr 27, 2021·Light, Science & Applications·Alessandro MinottoFranco Cacialli
Apr 2, 2021·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Tim HawlyRainer H Fink
Jun 10, 2021·The Journal of Physical Chemistry. a·L Alfonso-HernandezS Fernandez-Alberti
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xuzhou TianBing Yang
Feb 1, 2019·ACS Applied Materials & Interfaces·Nutifafa Y DoumonL Jan Anton Koster
Jul 19, 2020·Journal of Molecular Graphics & Modelling·Abdullah S KhazaalKai Huwig

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Methods Mentioned

BETA
atomic
scanning electron microscopy

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