The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Bright and Compact Alloyed Quantum Dots with Broadly Tunable Near-Infrared Absorption and Fluorescence Spectra through Mercury Cation Exchange
Open accessAbstract
We report a new strategy based on mercury cation exchange in nonpolar solvents to prepare bright and compact alloyed quantum dots (QDs) (Hg(x)Cd(1-x)E, where E = Te, Se, or S) with equalized particle size and broadly tunable absorption and fluorescence emission in the near-infrared. The main rationale is that cubic CdE and HgE have nearly identical lattice constants but very different band gap energies and electron/hole masses. Thus, replacement of Cd(2+) by Hg(2+) in CdTe nanocrystals does not change the particle size, but it greatly alters the band gap energy. After capping with a multilayer shell and solubilization with a multidentate ligand, this class of cation-exchanged QDs are compact (6.5 nm nanocrystal size and 10 nm hydrodynamic diameter) and very bright (60-80% quantum yield), with narrow and symmetric fluorescence spectra tunable across the wavelength range from 700 to 1150 nm.
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Cites
Renal clearance of quantum dots
Soo Choi, H., Liu, W., Misra, P., Tanaka, E., Zimmer, J. P., Itty Ipe, B., Bawendi, M. G., & Frangioni, J. V. (2007) · Nature Biotechnology · doi:10.1038/nbt1340 · Cited by 4,476
Second window for in vivo imaging
Smith, A. M., Mancini, M. C., & Nie, S. (2009) · Nature Nanotechnology · doi:10.1038/nnano.2009.326 · Cited by 2,848
Self-citationDesign considerations for tumour-targeted nanoparticles
Choi, H. S., Liu, W., Liu, F., Nasr, K., Misra, P., Bawendi, M. G., & Frangioni, J. V. (2010) · Nature Nanotechnology · doi:10.1038/nnano.2009.314 · Cited by 754
Cited by
Spectroscopic and Device Aspects of Nanocrystal Quantum Dots
Pietryga, J. M., Park, Y.-S., Lim, J., Fidler, A. F., Bae, W. K., Brovelli, S., & Klimov, V. I. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00169 · Cited by 1,040
Cation Exchange: A Versatile Tool for Nanomaterials Synthesis
Beberwyck, B. J., Surendranath, Y., & Alivisatos, A. P. (2013) · The Journal of Physical Chemistry C · doi:10.1021/jp405989z · Cited by 484
Li, H., Zanella, M., Genovese, A., Povia, M., Falqui, A., Giannini, C., & Manna, L. (2011) · Nano Letters · doi:10.1021/nl202927a · Cited by 345
Metadata
- Authors
- Smith, A. M., & Nie, S.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-12-13
- Volume
- 133
- Issue
- 1
- Pages
- 24-26
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2064158921
- Cited by
- 172
- References
- 3
- FWCI
- 7.41
- Type
- journal article
- Language
- en
- Open access
- green
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