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58‐3: Distinguished Paper: High‐Efficient Quantum‐Dot Light‐Emitting Diodes with Blue Cadmium‐free Quantum Dots
Author(s) -
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
Publication year - 2020
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.14007
Subject(s) - cadmium selenide , quantum dot , optoelectronics , light emitting diode , zinc selenide , electroluminescence , materials science , diode , gamut , quantum efficiency , optics , nanotechnology , physics , layer (electronics)
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.