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Title: Efficient quantum dot light emitting diodes for solid state lighting and displays
Authors: Yang, Xuyong
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics
DRNTU::Engineering::Electrical and electronic engineering::Semiconductors
DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2014
Source: Yang, X. (2014). Efficient quantum dot light emitting diodes for solid state lighting and displays. Doctoral thesis, Nanyang Technological University, Singapore.
Abstract: Quantum dot-based light-emitting diodes (QLEDs) with advantages in colour quality, stability and cost-effectiveness are emerging as a candidate for single-material, full colour light sources. The focus of this study is to solve some challenging problems that hinder the ultimate research transformation and commercialization of the QLED technology. Our light out-coupling strategy enhanced device efficiency up to 9.34%, the record high value for green QLEDs. The substitution of organic charge transport layers with metal oxide nanoparticles significantly improved the operating lifetime of QLEDs by a factor of 20. Our development of the narrowest-linewidth, high-quality InP-based QDs with wavelength tunability across full visible spectrum solved the toxicity problem of QDs effectively. The use of Kapton tape and metal electrodes in top-emitting LED architecture made a significant breakthrough in flexible QLED performance with the best efficiency of 4.03%. Our study reported in this thesis contributed to the fast development of the QLEDs.
DOI: 10.32657/10356/61730
Schools: School of Electrical and Electronic Engineering 
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

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