Publication: Structural control of InP/ZnS core/shell quantum dots enables high-quality white LEDs
Loading...
Program
Organization Authors
Co-Authors
Ow-Yang, Cleva W.
Date
Language
Type
Embargo Status
N/A
Journal Title
Journal ISSN
Volume Title
Alternative Title
Abstract
Herein, we demonstrate that the structural and optical control of InP-based quantum dots (QDs) can lead to high-performance light-emitting diodes (LEDs). Zinc sulphide (ZnS) shells passivate the InP QD core and increase the quantum yield in green-emitting QDs by 13-fold and redemitting QDs by 8-fold. The optimised QDs are integrated in the liquid state to eliminate aggregation-induced emission quenching and we fabricated white LEDs with a warm, neutral and cool-white appearance by the down-conversion mechanism The QD-functionalized white LEDs achieve luminous efficiency (LE) up to 14.7 lm W-1 and colour-rendering index up to 80. The structural and optical control of InP/ZnS core/shell QDs enable 23-fold enhancement in LE of white LEDs compared to ones containing only QDs of InP core.
Source
Publisher
Institute of Physics (IOP) Publishing
Subject
Citation
item.page.haspartof
Source
Nanotechnology
item.page.ispartofseries
item.page.edition
DOI
10.1088/1361-6528/aac8c9
item.page.datauri
item.page.link
Rights
N/A
Copyrights Note
Rights and licensing
N/A