58‐3: Distinguished Paper: High‐Efficient Quantum‐Dot Light‐Emitting Diodes with Blue Cadmium‐free Quantum Dots

58‐3: Distinguished Paper: High‐Efficient Quantum‐Dot Light‐Emitting Diodes with Blue Cadmium‐free Quantum Dots

We report outstanding electroluminescence properties of high efficient blue cadmium‐free quantum dot light emitting diodes (QD‐LED). External quantum efficiency (EQE) of 14.7% was achieved for QD‐LED emitting at 428nm. Furthermore we developed high efficiency and narrow wavelength emission Zinc Sele...

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Veröffentlicht in:SID International Symposium Digest of technical papers 2020-08, Vol.51 (1), p.866-869
Hauptverfasser: Ryowa, Tatsuya, Ishida, Takeshi, Sakakibara, Yusuke, Kitano, Keisuke, Ueda, Masaya, Izumi, Makoto, Ogura, Yuko, Tanaka, Masanori, Nikata, Soichiro, Watanabe, Mayuko, Takasaki, Mikihiro, Itoh, Tetsuji, Miyanaga, Akiharu
Format: Artikel
Sprache:eng
Schlagworte:
Blue quantum dot
Cadmium
Cadmium-free
Electroluminescence
EQE
Light emitting diodes
Nanocrystals
QD-LED
Quantum dots
Quantum efficiency
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Zusammenfassung:We report outstanding electroluminescence properties of high efficient blue cadmium‐free quantum dot light emitting diodes (QD‐LED). External quantum efficiency (EQE) of 14.7% was achieved for QD‐LED emitting at 428nm. Furthermore we developed high efficiency and narrow wavelength emission Zinc Selenide (ZnSe) nanocrystals emitting at 445nm and achieved QD‐LED with an EQE of 10.7%. These new QDs have great potential to be used in next generation QD‐LED display with wide colour gamut.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.14007