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Morphologically controlled synthesis of colloidal upconversion nanophosphors and their shape-directed self-assembly
Open accessAbstract
We report a one-pot chemical approach for the synthesis of highly monodisperse colloidal nanophosphors displaying bright upconversion luminescence under 980 nm excitation. This general method optimizes the synthesis with initial heating rates up to 100 °C/minute generating a rich family of nanoscale building blocks with distinct morphologies (spheres, rods, hexagonal prisms, and plates) and upconversion emission tunable through the choice of rare earth dopants. Furthermore, we employ an interfacial assembly strategy to organize these nanocrystals (NCs) into superlattices over multiple length scales facilitating the NC characterization and enabling systematic studies of shape-directed assembly. The global and local ordering of these superstructures is programmed by the precise engineering of individual NC’s size and shape. This dramatically improved nanophosphor synthesis together with insights from shape-directed assembly will advance the investigation of an array of emerging biological and energy-related nanophosphor applications.
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Shannon, R. D. (1976) · Acta Crystallographica Section A · doi:10.1107/s0567739476001551 · Cited by 66,145
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
Sun, S., Murray, C. B., Weller, D., Folks, L., & Moser, A. (2000) · Science · doi:10.1126/science.287.5460.1989 · Cited by 6,137
Self-citationShape control of CdSe nanocrystals
Peng, X., Manna, L., Yang, W., Wickham, J., Scher, E., Kadavanich, A., & Alivisatos, A. P. (2000) · Nature · doi:10.1038/35003535 · Cited by 4,487
The effect of particle design on cellular internalization pathways
Gratton, S. E. A., Ropp, P. A., Pohlhaus, P. D., Luft, J. C., Madden, V. J., Napier, M. E., & DeSimone, J. M. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0801763105 · Cited by 2,918
Metadata
- Authors
- Ye, X., Collins, J. E., Kang, Y., Chen, J., Chen, D. T. N., Yodh, A. G., & Murray, C. B.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2010-12-10
- Volume
- 107
- Issue
- 52
- Pages
- 22430-22435
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2146433789
- Cited by
- 457
- References
- 4
- FWCI
- 19.31
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Ye, X., Collins, J. E., Kang, Y., Chen, J., Chen, D. T. N., Yodh, A. G., & Murray, C. B. (2010). Morphologically controlled synthesis of colloidal upconversion nanophosphors and their shape-directed self-assembly. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1008958107
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