High‐efficiency quantum dot light‐emitting diodes with blue cadmium‐free quantum dots

202023 citationsJournal Article

Authors

Tatsuya Ryowa · National Archives and Records Administration

Takeshi Ishida · Japan Display (Japan)

Yusuke Sakakibara · National Archives and Records Administration

Keisuke Kitano · National Archives and Records Administration

Masaya Ueda · National Archives and Records Administration

Makoto Izumi · National Archives and Records Administration

Yuko Ogura

Abstract

Abstract We report outstanding electroluminescence properties of high‐efficiency blue cadmium‐free quantum dot light‐emitting diodes (QD‐LED). External quantum efficiency (EQE) of 14.7% was achieved for QD‐LED emitting at 428 nm. Furthermore, we developed high‐efficiency and narrow wavelength emission zinc selenide (ZnSe) nanocrystals emitting at 445 nm 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 color gamut.

Topics & Keywords

Quantum Dots Synthesis And Properties Nanocluster Synthesis and Applications Chalcogenide Semiconductor Thin Films

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Journal of the Society for Information Display

Volume 28, Issue 5, pp. 401-409

DOI: 10.1002/jsid.896

Field-Weighted Citation Impact: 1.44