QLEDs for displays and solid-state lighting
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Bawendi_QLEDs for displays.pdf
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736.37 KB
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Author(s)
Supran, Geoffrey James Sasaji
Shirasaki, Yasuhiro
Song, Katherine Wei
Caruge, Jean-Michel
Kazlas, Peter T.
Coe-Sullivan, Seth
Andrew, Trisha Lionel
Bawendi, Moungi G.
Bulovic, Vladimir
Date Issued
September 2013
Journal
MRS Bulletin
Publisher
Cambridge University Press (Materials Research Society)
Citation
Supran, Geoffrey J., Yasuhiro Shirasaki, Katherine W. Song, Jean-Michel Caruge, Peter T. Kazlas, Seth Coe-Sullivan, Trisha L. Andrew, Moungi G. Bawendi, and Vladimir Bulović. “QLEDs for displays and solid-state lighting.” MRS Bulletin 38, no. 09 (September 12, 2013): 703-711. © 2013 Materials Research Society.
Version
Final published version
Abstract
The mainstream commercialization of colloidal quantum dots (QDs) for light-emitting applications has begun: Sony televisions emitting QD-enhanced colors are now on sale. The bright and uniquely size-tunable colors of solution-processable semiconducting QDs highlight the potential of electroluminescent QD light-emitting devices (QLEDs) for use in energy-efficient, high-color-quality thin-film display and solid-state lighting applications. Indeed, this year’s report of record-efficiency electrically driven QLEDs rivaling the most efficient molecular organic LEDs, together with the emergence of full-color QLED displays, foreshadow QD technologies that will transcend the optically excited QD-enhanced products already available. In this article, we discuss the key advantages of using QDs as luminophores in LEDs and outline the 19-year evolution of four types of QLEDs that have seen efficiencies rise from less than 0.01% to 18%. With an emphasis on the latest advances, we identify the key scientific and technological challenges facing the commercialization of QLEDs. A quantitative analysis, based on published small-scale synthetic procedures, allows us to estimate the material costs of QDs typical in light-emitting applications when produced in large quantities and to assess their commercial viability.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Microsystems Technology Laboratories
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1557/mrs.2013.181
