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Color-Switchable Electroluminescence of Carbon Dot Light-Emitting Diodes
Abstract
Carbon-dot based light-emitting diodes (LEDs) with driving current controlled color change are reported. These devices consist of a carbon-dot emissive layer sandwiched between an organic hole transport layer and an organic or inorganic electron transport layer fabricated by a solution-based process. By tuning the device structure and the injecting current density (by changing the applied voltage), we can obtain multicolor emission of blue, cyan, magenta, and white from the same carbon dots. Such a switchable EL behavior with white emission has not been observed thus far in single emitting layer structured nanomaterial LEDs. This interesting current density-dependent emission is useful for the development of colorful LEDs. The pure blue and white emissions are obtained by tuning the electron transport layer materials and the thickness of electrode.
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Cites
Bright, multicoloured light-emitting diodes based on quantum dots
Sun, Q., Wang, Y. A., Li, L. S., Wang, D., Zhu, T., Xu, J., Yang, C., & Li, Y. (2007) · Nature Photonics · doi:10.1038/nphoton.2007.226 · Cited by 1,147
Self-citation
Cited by
Zhu, S., Song, Y., Zhao, X., Shao, J., Zhang, J., & Yang, B. (2015) · Nano Research · doi:10.1007/s12274-014-0644-3 · Cited by 2,781
Carbon quantum dots: synthesis, properties and applications
Wang, Y., & Hu, A. (2014) · Journal of Materials Chemistry C · doi:10.1039/c4tc00988f · Cited by 2,597
Self-citationGeorgakilas, V., Perman, J. A., Tucek, J., & Zboril, R. (2015) · Chemical Reviews · doi:10.1021/cr500304f · Cited by 2,147
Carbon dots—Emerging light emitters for bioimaging, cancer therapy and optoelectronics
Hola, K., Zhang, Y., Wang, Y., Giannelis, E. P., Zboril, R., & Rogach, A. L. (2014) · Nano Today · doi:10.1016/j.nantod.2014.09.004 · Cited by 992
Self-citationShining carbon dots: Synthesis and biomedical and optoelectronic applications
Yuan, F., Li, S., Fan, Z., Meng, X., Fan, L., & Yang, S. (2016) · Nano Today · doi:10.1016/j.nantod.2016.08.006 · Cited by 746
Metadata
- Authors
- Zhang, X., Zhang, Y., Wang, Y., Kalytchuk, S., Kershaw, S. V., Wang, Y., Wang, P., Zhang, T., Zhao, Y., Zhang, H., Cui, T., Wang, Y., Zhao, J., Yu, W. W., & Rogach, A. L.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-11-18
- Volume
- 7
- Issue
- 12
- Pages
- 11234-11241
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2312729923
- Cited by
- 534
- References
- 1
- FWCI
- 19.09
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, X., Zhang, Y., Wang, Y., Kalytchuk, S., Kershaw, S. V., Wang, Y., Wang, P., Zhang, T., Zhao, Y., Zhang, H., Cui, T., Wang, Y., Zhao, J., Yu, W. W., & Rogach, A. L. (2013). Color-Switchable Electroluminescence of Carbon Dot Light-Emitting Diodes. ACS Nano. https://doi.org/10.1021/nn405017q
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