The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Surfactant Ligand Removal and Rational Fabrication of Inorganically Connected Quantum Dots
Abstract
A novel method is reported to create inorganically connected nanocrystal (NC) assemblies for both II-VI and IV-VI semiconductors by removing surfactant ligands using (NH4)2S. This surface modification process differs from ligand exchange methods in that no new surfactant ligands are introduced and the post-treated NC surfaces are nearly bare. The detailed mechanism study shows that the high reactivity between (NH4)2S and metal-surfactant ligand complexes enables the complete removal of surfactant ligands in seconds and converts the NC metal-rich shells into metal sulfides. The post-treated NCs are connected through metal-sulfide bonding and form a larger NCs film assembly, while still maintaining quantum confinement. Such "connected but confined" NC assemblies are promising new materials for electronic and optoelectronic devices.
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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
Colloidal nanocrystal synthesis and the organic–inorganic interface
Yin, Y., & Alivisatos, A. P. (2005) · Nature · doi:10.1038/nature04165 · Cited by 3,273
Cited by
Compound Copper Chalcogenide Nanocrystals
Coughlan, C., Ibáñez, M., Dobrozhan, O., Singh, A., Cabot, A., & Ryan, K. M. (2017) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00376 · Cited by 930
Anderson, N. C., Hendricks, M. P., Choi, J. J., & Owen, J. S. (2013) · Journal of the American Chemical Society · doi:10.1021/ja4086758 · Cited by 874
Metadata
- Authors
- Zhang, H., Hu, B., Sun, L., Hovden, R., Wise, F. W., Muller, D. A., & Robinson, R. D.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2011-10-27
- Volume
- 11
- Issue
- 12
- Pages
- 5356-5361
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2084631711
- Cited by
- 215
- References
- 2
- FWCI
- 9.45
- Type
- journal article
- Language
- en
- Open access
- closed
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