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Efficient Energy Transfer in Monodisperse Eu-Doped ZnO Nanocrystals Synthesized from Metal Acetylacetonates in High-Boiling Solvents
Abstract
Monodisperse ZnO:Eu nanocrystals were prepared by the codecomposition of metal acetylacetonate precursors in a mixture of oleylamine and 1-octadecene. They have been systematically characterized by means of X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, inductively coupled plasma atomic emission spectrometry, Raman spectroscopy, and photoluminescence spectroscopy. The as-obtained ZnO:Eu nanocrystals are mainly composed of nanopyramids and dot-shaped nanocrystals and have an average size in the range of 16−32 nm. The valence states of europium ions in the nanocrystals are determined as predominately +3. With increasing dopant concentration of Eu 3+ ions, Eu 2 O 3 species tend to segregate on the surfaces of nanocrystals. Under a typical band-edge excitation of ZnO (380 nm), a direct energy transfer from ZnO host to Eu 3+ ions, together with a distinct quenching of broad defect emission of ZnO, was observed for the as-obtained doped nanocrystals.
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Cites
Shape 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
Metadata
- Authors
- Du, Y.-P., Zhang, Y.-W., Sun, L.-D., & Yan, C.-H.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-07-19
- Volume
- 112
- Issue
- 32
- Pages
- 12234-12241
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2122830739
- Cited by
- 218
- References
- 1
- FWCI
- 5.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Du, Y.-P., Zhang, Y.-W., Sun, L.-D., & Yan, C.-H. (2008). Efficient Energy Transfer in Monodisperse Eu-Doped ZnO Nanocrystals Synthesized from Metal Acetylacetonates in High-Boiling Solvents. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp802958x
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