Pushing the Efficiency Envelope for Semiconductor Nanocrystal-Based Electroluminescence Devices Using Anisotropic Nanocrystals
- Authors
- Kim, W.D.[Kim, W.D.]; Kim, D.[Kim, D.]; Yoon, D.-E.[Yoon, D.-E.]; Lee, H.[Lee, H.]; Lim, J.[Lim, J.]; Bae, W.K.[Bae, W.K.]; Lee, D.C.[Lee, D.C.]
- Issue Date
- 14-May-2019
- Publisher
- American Chemical Society
- Citation
- Chemistry of Materials, v.31, no.9, pp.3066 - 3082
- Indexed
- SCIE
SCOPUS
- Journal Title
- Chemistry of Materials
- Volume
- 31
- Number
- 9
- Start Page
- 3066
- End Page
- 3082
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/15341
- DOI
- 10.1021/acs.chemmater.8b05366
- ISSN
- 0897-4756
- Abstract
- Colloidal semiconductor nanocrystals hold great promise in display technologies, as the tunable energy levels and narrow emission bandwidth allow for wide gamut in color space. Impetus for energy-efficient, high-color-quality display has driven the surge of interest in electrically driven quantum dot-based light-emitting diodes (QD-LEDs). While extensive efforts have led to synthesis of QDs with near-unity photoluminescence quantum yield and fabrication of QD-LEDs with external quantum efficiency reaching to the theoretical limit (?20%), low out-coupling factor poses a challenge in the way of improving the device performance when spherical QDs are used. Geometrically anisotropic nanocrystals (NCs) such as nanorods or nanoplatelets represent a unique possible solution to enhancing light extraction efficiency. In this Perspective, we highlight important design principles of individual anisotropic NCs and their assembly in the context of LED applications. © 2019 American Chemical Society.
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Collections - Graduate School > SKKU Advanced Institute of Nano Technology > 1. Journal Articles
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