25‐3: Highly Efficient, All‐Inkjet‐Printed, Deep Red Quantum Dot Light Emitting Diodes from Positive Aging

25‐3: Highly Efficient, All‐Inkjet‐Printed, Deep Red Quantum Dot Light Emitting Diodes from Positive Aging

In this work, we report all‐inkjet‐printed deep red quantum dot light emitting diodes (QLEDs) for achieving large‐scale and pixelated QLED display. The devices exhibit a current efficiency of 6.44 cd/A at the luminance of 1000 cd/m2 which is the best result to date for inkjet‐printed red QLEDs. This...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2019-06, Vol.50 (1), p.346-348
Hauptverfasser: Zhang, Shuren, Wu, Yuan-Chun, Jiao, Shibo, Li, Yuanyuan, Yuan, Wei, Zhang, Shijie, Iguchi, Shinsuke, Lu, Po-Yen, Zhou, Hang
Format: Artikel
Sprache:eng
Schlagworte:
Coffee
coffee ring
Current efficiency
Display devices
Efficiency
Inkjet printed
Light emitting diodes
Organic light emitting diodes
positive aging
QLED
Quantum dots
Zinc oxide
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Beschreibung
Zusammenfassung:In this work, we report all‐inkjet‐printed deep red quantum dot light emitting diodes (QLEDs) for achieving large‐scale and pixelated QLED display. The devices exhibit a current efficiency of 6.44 cd/A at the luminance of 1000 cd/m2 which is the best result to date for inkjet‐printed red QLEDs. This high efficiency results from uniform HIL/HTL/QDs/ZnO films via suppressing coffee ring effect and a positive aging effect which means the efficiency increased with time.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.12927