The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
One-pot hydrothermal synthesis of graphenequantum dots surface-passivated by polyethylene glycol and their photoelectric conversion under near-infrared light
Abstract
A novel and simple approach for preparing graphene quantum dots surface-passivated by polyethylene glycol (GQDs-PEG) has been developed by a one-pot hydrothermal reaction, using small graphene oxide (GO) sheets and polyethylene glycol (PEG) as starting materials. The prepared GQDs-PEG show excellent luminescence properties, the PL quantum yield of the GQDs-PEG with 360 nm emission was about 28.0%, which was two times higher than the pure GQDs. Interestingly, the GQDs-PEG possess the upconversion photoluminescence (UCPL) properties. Blue PL was clearly shown both under the ultraviolet and 808 nm laser in the fluorescent microscopy images. So the GQDs-PEG may provide a new type of fluorescence and upconversion material for applications in bioscience and energy technology. Especially, the GQDs-PEG showed higher photocurrent generation capability. And their photoelectrode generated an obvious and stable photocurrent under a 808 nm near-infrared (NIR) laser. Due to the low cost and simple method, GQDs-PEG thus provide a cost-effective dopant material for solar energy conversion.
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Cites
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Carbon quantum dots and their applications
Lim, S. Y., Shen, W., & Gao, Z. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00269e · Cited by 4,976
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Self-citationGlowing 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
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Metadata
- Authors
- Shen, J., Zhu, Y., Yang, X., Zong, J., Zhang, J., & Li, C.
- Venue
- New J. Chem.
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 36
- Issue
- 1
- Pages
- 97-101
- ISSN
- 0398-9836 (ISSN-L)
- 1144-0546
- 1369-9261
- OpenAlex
- W1972834498
- Cited by
- 507
- References
- 34
- FWCI
- 15.49
- Type
- journal article
- Language
- en
- Open access
- closed
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