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Optical, Electronic, and Structural Properties of Uncoupled and Close-Packed Arrays of InP Quantum Dots
Abstract
Solid films consisting of close-packed arrays of InP quantum dots have been prepared by slowly evaporating colloidal solutions of InP quantum dots. The diameters of the quantum dots were controlled to be between about 30 to 60 Å; size-selective precipitation yielded a size distribution of about 10% about the mean diameter. The arrays show regions of hexagonal order, as well as disordered regions. Oxide layers can form irreversibly on the quantum dot surface and limit the effectiveness of the size-selective precipitation. Photoluminescence spectra obtained from close-packed films of InP quantum dots formed from quantum dots with a single mean diameter and from a mixture of two quantum dot sizes show that energy transfer occurs from the photoexcited smaller quantum dots to the larger quantum dots. The efficiency of this energy transfer process is high.
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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
Nozik, A. J. (2002) · Physica E: Low-dimensional Systems and Nanostructures · doi:10.1016/s1386-9477(02)00374-0 · Cited by 2,653
Self-citationQuantum-dot-tagged microbeads for multiplexed optical coding of biomolecules
Han, M., Gao, X., Su, J. Z., & Nie, S. (2001) · Nature Biotechnology · doi:10.1038/90228 · Cited by 2,631
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
Moriarty, P. (2001) · Reports on Progress in Physics · doi:10.1088/0034-4885/64/3/201 · Cited by 785
Metadata
- Authors
- Mićić, O. I., Jones, K. M., Cahill, A., & Nozik, A. J.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 1998-09-26
- Volume
- 102
- Issue
- 49
- Pages
- 9791-9796
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2089729461
- Cited by
- 237
- References
- 0
- FWCI
- 8.18
- Type
- journal article
- Language
- en
- Open access
- closed
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- Mićić, O. I., Jones, K. M., Cahill, A., & Nozik, A. J. (1998). Optical, Electronic, and Structural Properties of Uncoupled and Close-Packed Arrays of InP Quantum Dots. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp981703u
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