Semi-transparent quantum-dot light-emitting diode with ultrathin Au electrode embedded in solution-processed coatings

[Display omitted] In this study, ultrathin Au films embedded between solution-processed layers of ZnMgO and phosphomolybdic acid (PMA) are investigated in the context of transparent conductive electrodes (TCEs) for optoelectronic applications. We report that ZnMgO/Au/PMA multilayer prepared by combi...

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Veröffentlicht in:Materials letters 2019-12, Vol.257, p.126709, Article 126709
Hauptverfasser: Chrzanowski, M., Banski, M., Podhorodecki, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:[Display omitted] In this study, ultrathin Au films embedded between solution-processed layers of ZnMgO and phosphomolybdic acid (PMA) are investigated in the context of transparent conductive electrodes (TCEs) for optoelectronic applications. We report that ZnMgO/Au/PMA multilayer prepared by combined spin-coting/sputtering method might reach transmittance of over 83% and sheet resistance of 16 Ω/sq. Spin-coated coatings are demonstrated to contribute to the anti-reflect effect that improves Au transmittance. Transparent multilayer electrode is finally incorporated into the architecture of quantum-dot light-emitting diode (QD-LED). The complete device is shown to reach a peak transmittance of 75% at 550 nm and a maximum external quantum efficiency of 2%.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2019.126709