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Colloidal chemical synthesis and characterization of InAs nanocrystal quantum dots
Abstract
InAs nanocrystal quantum dots have been prepared via colloidal chemical synthesis using the reaction of InCl3 and As[Si(CH3)3]3. Sizes ranging from 25 to 60 Å in diameter are produced and isolated with size distributions of ±10%–15% in diameter. The nanocrystals are crystalline and generally spherical with surfaces passivated by trioctylphosphine giving them solubility in common organic solvents. The dots have been structurally characterized by transmission electron microscopy (TEM) and powder x-ray diffraction (XRD) and the optical absorption and emission have been examined. Quantum confinement effects are evident with absorption onsets well to the blue of the bulk band gap and size dependent absorption and emission features. The emission is dominated by band edge luminescence. These quantum dots are particularly interesting as they provide an opportunity to make important comparisons with comparably sized InAs quantum dots synthesized by molecular beam epitaxy techniques.
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Citations
Cited by
Synthesis and Characterization of Monodisperse Nanocrystals and Close-Packed Nanocrystal Assemblies
Murray, C. B., Kagan, C. R., & Bawendi, M. G. (2000) · Annual Review of Materials Science · doi:10.1146/annurev.matsci.30.1.545 · Cited by 4,353
Peng, X., Wickham, J., & Alivisatos, A. P. (1998) · Journal of the American Chemical Society · doi:10.1021/ja9805425 · Cited by 1,895
Self-citationThiol-Capping of CdTe Nanocrystals: An Alternative to Organometallic Synthetic Routes
Gaponik, N., Talapin, D. V., Rogach, A. L., Hoppe, K., Shevchenko, E. V., Kornowski, A., Eychmüller, A., & Weller, H. (2002) · The Journal of Physical Chemistry B · doi:10.1021/jp025541k · Cited by 1,540
Quantum Dots and Their Multimodal Applications: A Review
Bera, D., Qian, L., Tseng, T.-K., & Holloway, P. H. (2010) · Materials · doi:10.3390/ma3042260 · Cited by 1,365
Size dependence of nanostructures: Impact of bond order deficiency
Sun, C. Q. (2007) · Progress in Solid State Chemistry · doi:10.1016/j.progsolidstchem.2006.03.001 · Cited by 873
Metadata
- Authors
- Guzelian, A. A., Banin, U., Kadavanich, A. V., Peng, X., & Alivisatos, A. P.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 1996-09-02
- Volume
- 69
- Issue
- 10
- Pages
- 1432-1434
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2030298180
- Cited by
- 515
- References
- 0
- FWCI
- 11.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- Guzelian, A. A., Banin, U., Kadavanich, A. V., Peng, X., & Alivisatos, A. P. (1996). Colloidal chemical synthesis and characterization of InAs nanocrystal quantum dots. Applied Physics Letters. https://doi.org/10.1063/1.117605
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