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Quantum Dot Light-Emitting Devices with Electroluminescence Tunable over the Entire Visible Spectrum
Abstract
Improvements in quantum dot light-emitting device (QD-LED) performance are achieved by the choice of organic charge transporting layers, by use of different colloidal QDs for the different parts of the visible spectrum, and by utilizing a recently demonstrated robust QD deposition method. Spectrally narrow electroluminescence of our QD-LEDs is tuned over the entire visible wavelength range from lambda = 460 nm (blue) to lambda = 650 nm (deep red). By printing close-packed monolayers of different QD types inside an identical QD-LED structure, we demonstrate that different color QD-LEDs with QDs of different chemistry can be fabricated on the same substrate. We discuss mechanisms responsible for efficiency increase for green (4-fold) and orange (30%) QD-LEDs as compared to previous reports and outline challenges associated with achieving high-efficiency blue QD-LEDs.
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Self-citationXiao, J., Liu, P., Wang, C. X., & Yang, G. W. (2017) · Progress in Materials Science · doi:10.1016/j.pmatsci.2017.02.004 · Cited by 352
Development of Technologies for Sensing Ozone in Ambient Air
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Metadata
- Authors
- Anikeeva, P. O., Halpert, J. E., Bawendi, M. G., & Bulović, V.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-06-10
- Volume
- 9
- Issue
- 7
- Pages
- 2532-2536
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2084226737
- Cited by
- 872
- References
- 25
- FWCI
- 25.68
- Type
- journal article
- Language
- en
- Open access
- closed
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