The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.
Ultrasmall Monodisperse NaYF4:Yb3+/Tm3+ Nanocrystals with Enhanced Near-Infrared to Near-Infrared Upconversion Photoluminescence
Open accessAbstract
Photoluminescent NaYF(4):Yb(3+)/Tm(3+) nanocrystals are ideally suited for in vitro and in vivo photoluminescence (PL) bioimaging due to their virtue of near-infrared to near-infrared (NIR-to-NIR) upconversion (UC); they display PL with a peak at approximately 800 nm if excited at approximately 980 nm. Here, we report the synthesis of monodisperse NaYF(4):Yb(3+)/Tm(3+) nanocrystals of ultrasmall size (7-10 nm) with high UC efficiency. The intensity of their NIR UC emission was demonstrated to increase by up to 43 times along with an increase in the relative content of Yb(3+) ions from 20 to 100%, with a corresponding decrease in the Y(3+) content from 80 to 0%. The achieved ultrasmall NaYbF(4):2% Tm(3+) nanocrystals manifest NIR PL emission, which is 3.6 times more intense than that from 25-30 nm sized NaYF(4):20% Yb(3+)/2% Tm(3+) nanocrystals, previously synthesized and used for in vitro and in vivo bioimaging. An optimization of both size and UC PL efficiency of NIR-to-NIR nanocrystals provides us with highly efficient optical imaging probes for bioapplications.
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Cites
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High-Quality Sodium Rare-Earth Fluoride Nanocrystals: Controlled Synthesis and Optical Properties
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Cited by
Zheng, W., Huang, P., Tu, D., Ma, E., Zhu, H., & Chen, X. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00178h · Cited by 894
Xu, H., Cheng, L., Wang, C., Ma, X., Li, Y., & Liu, Z. (2011) · Biomaterials · doi:10.1016/j.biomaterials.2011.08.053 · Cited by 301
Yang, Y., Liu, F., Liu, X., & Xing, B. (2013) · Nanoscale · doi:10.1039/c2nr32835f · Cited by 229
Metadata
- Authors
- Chen, G., Ohulchanskyy, T. Y., Kumar, R., Ågren, H., & Prasad, P. N.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-05-28
- Volume
- 4
- Issue
- 6
- Pages
- 3163-3168
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2013802099
- Cited by
- 632
- References
- 21
- FWCI
- 26.26
- Type
- journal article
- Language
- en
- Open access
- green
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- Chen, G., Ohulchanskyy, T. Y., Kumar, R., Ågren, H., & Prasad, P. N. (2010). Ultrasmall Monodisperse NaYF4:Yb3+/Tm3+ Nanocrystals with Enhanced Near-Infrared to Near-Infrared Upconversion Photoluminescence. ACS Nano. https://doi.org/10.1021/nn100457j
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