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Nanostructured colloidal quantum dots for efficient electroluminescence devices
- Source :
- Korean Journal of Chemical Engineering. 36:173-185
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- The exceptional quality of light generated from colloidal quantum dots has attracted continued interest from the display and lighting industry, leading to the development of commercial quantum dot displays based on the photoluminescence down-conversion process. Beyond this technical level, quantum dots are being introduced as emissive materials in electroluminescence devices (or quantum dot-based light-emitting diodes), which boast high internal quantum efficiency of up to 100%, energy efficiency, thinness, and flexibility. In this review, we revisit various milestone studies regarding the core/shell heterostructures of colloidal quantum dots from the viewpoint of electroluminescence materials. Development of nanostructured colloidal quantum dots advanced from core/shell heterostructure, core/thick shell formulation, and delicate control of confinement potential shape has demonstrated close correlation of the photophysical properties of quantum dots with the performance of electroluminescence device, which provided useful guidelines on the heterostructured quantum dots for mitigating or eliminating efficiency limiting phenomena in quantum dot light emitting diodes. To enable practical and high performance quantum dot-based electroluminescence devices in the future, integration of design concepts on the heterostructures with environmentally benign systems will be crucial.
- Subjects :
- Materials science
Photoluminescence
business.industry
General Chemical Engineering
Heterojunction
02 engineering and technology
General Chemistry
Electroluminescence
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
021001 nanoscience & nanotechnology
law.invention
Condensed Matter::Materials Science
020401 chemical engineering
Nanocrystal
law
Quantum dot
Optoelectronics
Quantum efficiency
0204 chemical engineering
0210 nano-technology
business
Diode
Light-emitting diode
Subjects
Details
- ISSN :
- 19757220 and 02561115
- Volume :
- 36
- Database :
- OpenAIRE
- Journal :
- Korean Journal of Chemical Engineering
- Accession number :
- edsair.doi...........c0066749e9d1fabe97832070db3c3912