The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Deep Ultraviolet Photoluminescence of Water-Soluble Self-Passivated Graphene Quantum Dots
Abstract
Glucose-derived water-soluble crystalline graphene quantum dots (GQDs) with an average diameter as small as 1.65 nm (∼5 layers) were prepared by a facile microwave-assisted hydrothermal method. The GQDs exhibits deep ultraviolet (DUV) emission of 4.1 eV, which is the shortest emission wavelength among all the solution-based QDs. The GQDs exhibit typical excitation wavelength-dependent properties as expected in carbon-based quantum dots. However, the emission wavelength is independent of the size of the GQDs. The unique optical properties of the GQDs are attributed to the self-passivated layer on the surface of the GQDs as revealed by electron energy loss spectroscopy. The photoluminescence quantum yields of the GQDs were determined to be 7-11%. The GQDs are capable of converting blue light into white light when the GQDs are coated onto a blue light emitting diode.
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Cites
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Cited by
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Shining carbon dots: Synthesis and biomedical and optoelectronic applications
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Metadata
- Authors
- Tang, L., Ji, R., Cao, X., Lin, J., Jiang, H., Li, X., Teng, K. S., Luk, C. M., Zeng, S., Hao, J., & Lau, S. P.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-05-10
- Volume
- 6
- Issue
- 6
- Pages
- 5102-5110
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2117083445
- Cited by
- 1,765
- References
- 34
- FWCI
- 48.36
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tang, L., Ji, R., Cao, X., Lin, J., Jiang, H., Li, X., Teng, K. S., Luk, C. M., Zeng, S., Hao, J., & Lau, S. P. (2012). Deep Ultraviolet Photoluminescence of Water-Soluble Self-Passivated Graphene Quantum Dots. ACS Nano. https://doi.org/10.1021/nn300760g
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