Fabrication of white light-emitting diodes based on solvothermally synthesized copper indium sulfide quantum dots as color converters
- Authors
- Song, Woo-Seuk; Yang, Heesun
- Issue Date
- 30-Apr-2012
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS, v.100, no.18
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 100
- Number
- 18
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/18981
- DOI
- 10.1063/1.4711019
- ISSN
- 0003-6951
- Abstract
- A facile, large-scalable solvothermal synthesis of copper indium sulfide (CIS) quantum dots (QDs) and their application to the fabrication of QD-based white light-emitting diodes (LEDs) are reported. Depending on CIS QD growth time of 2 versus 5 h, the core/shell structured QDs of CIS/ZnS exhibit tunable emissions of yellow-orange with excellent quantum yields of 55%-91%. A white QD-LED is realized by applying CIS (2 h)/ZnS QD as a blue-to-yellow color converter. Furthermore, a white QD-LED having a blend of yellow and orange QDs is fabricated to improve a color rendering property through spectral extension, and its electroluminescent properties are evaluated. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4711019]
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Collections - Graduate School > Materials Science and Engineering > 1. Journal Articles
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