The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
High-Quality Manganese-Doped ZnSe Nanocrystals
Abstract
We demonstrate high-quality, highly fluorescent, ZnSe colloidal nanocrystals (or quantum dots) that are doped with paramagnetic Mn 2+ impurities. We present luminescence, magnetic circular dichroism (MCD), and electron paramagnetic resonance (EPR) measurements to confirm that the Mn impurities are embedded inside the nanocrystal. Optical measurements show that by exciting the nanocrystal, efficient emission from Mn is obtained, with a quantum yield of 22% at 295 K and 75% below 50 K (relative to Stilbene 420). MCD spectra reveal an experimental Zeeman splitting in the first excited state that is large (28 meV at 2.5 T), depends on doping concentration, and saturates at modest fields. In the low field limit, the magnitude of the effective g factor is 430 times larger than in undoped nanocrystals. EPR experiments exhibit a six-line spectrum with a hyperfine splitting of 60.4 × 10 -4 cm -1, consistent with Mn substituted at Zn sites in the cubic ZnSe lattice.
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Cites
Perspectives on the Physical Chemistry of Semiconductor Nanocrystals
Alivisatos, A. P. (1996) · The Journal of Physical Chemistry · doi:10.1021/jp9535506 · Cited by 3,595
Cited by
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Bera, D., Qian, L., Tseng, T.-K., & Holloway, P. H. (2010) · Materials · doi:10.3390/ma3042260 · Cited by 1,365
Doped quantum dots for chemo/biosensing and bioimaging
Wu, P., & Yan, X.-P. (2013) · Chemical Society Reviews · doi:10.1039/c3cs60017c · Cited by 667
Metal-Doped Lead Halide Perovskites: Synthesis, Properties, and Optoelectronic Applications
Zhou, Y., Chen, J., Bakr, O. M., & Sun, H.-T. (2018) · Chemistry of Materials · doi:10.1021/acs.chemmater.8b02989 · Cited by 650
CsPbxMn1–xCl3 Perovskite Quantum Dots with High Mn Substitution Ratio
Liu, H., Wu, Z., Shao, J., Yao, D., Gao, H., Liu, Y., Yu, W., Zhang, H., & Yang, B. (2017) · ACS Nano · doi:10.1021/acsnano.6b08747 · Cited by 587
High Quality ZnSe and ZnS Nanocrystals Formed by Activating Zinc Carboxylate Precursors
Li, L. S., Pradhan, N., Wang, Y., & Peng, X. (2004) · Nano Letters · doi:10.1021/nl048650e · Cited by 373
Radial-Position-Controlled Doping in CdS/ZnS Core/Shell Nanocrystals
Yang, Y., Chen, O., Angerhofer, A., & Cao, Y. C. (2006) · Journal of the American Chemical Society · doi:10.1021/ja064818h · Cited by 320
Metadata
- Authors
- Norris, D. J., Yao, N., Charnock, F. T., & Kennedy, T. A.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2000-11-28
- Volume
- 1
- Issue
- 1
- Pages
- 3-7
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2088629722
- Cited by
- 830
- References
- 1
- FWCI
- 9.91
- Type
- journal article
- Language
- en
- Open access
- closed
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