The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Anomalous Behaviors of Visible Luminescence from Graphene Quantum Dots: Interplay between Size and Shape
Abstract
For the application of graphene quantum dots (GQDs) to optoelectronic nanodevices, it is of critical importance to understand the mechanisms which result in novel phenomena of their light absorption/emission. Here, we present size-dependent shape/edge-state variations of GQDs and visible photoluminescence (PL) showing anomalous size dependences. With varying the average size (d(a)) of GQDs from 5 to 35 nm, the peak energy of the absorption spectra monotonically decreases, while that of the visible PL spectra unusually shows nonmonotonic behaviors having a minimum at d(a) = ~17 nm. The PL behaviors can be attributed to the novel feature of GQDs, that is, the circular-to-polygonal-shape and corresponding edge-state variations of GQDs at d(a) = ~17 nm as the GQD size increases, as demonstrated by high-resolution transmission electron microscopy.
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Citations
Cites
Geim, A. K., & Novoselov, K. S. (2007) · Nature Materials · doi:10.1038/nmat1849 · Cited by 39,979
Graphene: Status and Prospects
Geim, A. K. (2009) · Science · doi:10.1126/science.1158877 · Cited by 13,942
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
Glowing Graphene Quantum Dots and Carbon Dots: Properties, Syntheses, and Biological Applications
Zheng, X. T., Ananthanarayanan, A., Luo, K. Q., & Chen, P. (2015) · Small · doi:10.1002/smll.201402648 · Cited by 2,190
Graphene Plasmonics: Challenges and Opportunities
García de Abajo, F. J. (2014) · ACS Photonics · doi:10.1021/ph400147y · Cited by 1,254
Shining 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
Self-citationRevealing the tunable photoluminescence properties of graphene quantum dots
Sk, M. A., Ananthanarayanan, A., Huang, L., Lim, K. H., & Chen, P. (2014) · J. Mater. Chem. C · doi:10.1039/c4tc01191k · Cited by 698
Metadata
- Authors
- Kim, S., Hwang, S. W., Kim, M.-K., Shin, D. Y., Shin, D. H., Kim, C. O., Yang, S. B., Park, J. H., Hwang, E., Choi, S.-H., Ko, G., Sim, S., Sone, C., Choi, H. J., Bae, S., & Hong, B. H.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-08-15
- Volume
- 6
- Issue
- 9
- Pages
- 8203-8208
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2333498075
- Cited by
- 692
- References
- 2
- FWCI
- 17.67
- Type
- journal article
- Language
- en
- Open access
- closed
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