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Size Dependence of Structural Metastability in Semiconductor Nanocrystals
Abstract
The kinetics of a first-order, solid-solid phase transition were investigated in the prototypical nanocrystal system CdSe as a function of crystallite size. In contrast to extended solids, nanocrystals convert from one structure to another by single nucleation events, and the transformations obey simple unimolecular kinetics. Barrier heights were observed to increase with increasing nanocrystal size, although they also depend on the nature of the nanocrystal surface. These results are analogous to magnetic phase transitions in nanocrystals and suggest general rules that may be of use in the discovery of new metastable phases.
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Cited by
Size effects in the Raman spectra of TiO2 nanoparticles
Choi, H. C., Jung, Y. M., & Kim, S. B. (2005) · Vibrational Spectroscopy · doi:10.1016/j.vibspec.2004.05.006 · Cited by 788
Self-Purification in Semiconductor Nanocrystals
Dalpian, G. M., & Chelikowsky, J. R. (2006) · Physical Review Letters · doi:10.1103/physrevlett.96.226802 · Cited by 678
Multigram Scale Synthesis and Characterization of Monodisperse Tetragonal Zirconia Nanocrystals
Joo, J., Yu, T., Kim, Y. W., Park, H. M., Wu, F., Zhang, J. Z., & Hyeon, T. (2003) · Journal of the American Chemical Society · doi:10.1021/ja034258b · Cited by 412
High‐Pressure Band‐Gap Engineering in Lead‐Free Cs2AgBiBr6 Double Perovskite
Li, Q., Wang, Y., Pan, W., Yang, W., Zou, B., Tang, J., & Quan, Z. (2017) · Angewandte Chemie International Edition · doi:10.1002/anie.201708684 · Cited by 292
Metadata
- Authors
- Chen, C.-C., Herhold, A. B., Johnson, C. S., & Alivisatos, A. P.
- Venue
- Science
- Published
- 1997-04-18
- Volume
- 276
- Issue
- 5311
- Pages
- 398-401
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2008674263
- Cited by
- 570
- References
- 0
- FWCI
- 12.42
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chen, C.-C., Herhold, A. B., Johnson, C. S., & Alivisatos, A. P. (1997). Size Dependence of Structural Metastability in Semiconductor Nanocrystals. Science. https://doi.org/10.1126/science.276.5311.398
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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